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Home My WebLink AboutItem 6.1 Dublin Rch No Annex (2)APPENDIX A LIST OF OBSERVED PLANT AND ANIMAL SPECIES dig . t ��lo Appendix A. List of plant and wildlife species observed on April 28, 2009 within the 30 acre Project Area of Dublin Ranch North. Scientific Name Common Name Plants Amsinckia menziesii var. intermedia common fiddleneck A vena barbata slender wild oat A vena fatua wild oat Bellardia trixago Mediterranean lineseed Brassica nigra black mustard Bromus diandrus ripgut brorne Bromus hordeaceus soft chess Bromus madritensis ssp. madritensis foxtail chess Castilleja exserta owl's clover Calystegia subacaulis stemless morning glory Convolvulus arvensis bindweed Cynara cardunculus artichoke thistle Erodium boLtys stork's bill filaree Erodium cicutarium redstern filaree Eschscholzia califomica California poppy Hirschfeldia incana hoary mustard Hordeum mufinum ssp. leporinum foxtail barleL Hordeum marinum ssp. gussoheanum Mediterranean barley Lolium multiflorum Italian rye2rass Lupinus sp. lupine Marah fabaceus wild cucumber Medica2o polymorpha burclover Rumex crispu curly dock Sanicula bipinnatifida snakeroot Silybum madanum milk thistle Sonchus as per _Lrickly sow thistle Scientific Name Common Name Taraxacum officinale dandelion Triteleia laxa Ithuriel's spear Vicia sativa spring vetch Vulpia myuros foxtail fescue Wildlife Spermophilus beecheyi California Ground Squirrel Cathartes aura Turkey Vulture Circus cyaneus Northern Harrier censi . Buteojamai s Red-tailed Hawk Charadrius vociferus Killdeer Corvus corax Common Raven Petrochelidon pyrrhonota Cliff Swallow Ammodramus savannarum Grasshopper Sparrow Agelaius phoeniceus Red-Winged Blackbird Sturnella neglecta Western Me6dowlark Coenonympha tullia common ringlet (butterfly) a yyo POTENTIAL FOR SPECIAL STATUS PLANT AND WILDLIFE SPECIES TO OCCUR IN THE PROJECT AREA. a,:2 o �E' -, IL .7, -0 .0 Z U a) "D tj a) _0 U W lu co C m _0 C cc a - C Z 2 (D 0 0 CD 0 Q) 0 E . 2 E .2 E :3 E uj 0 0 0 0 0 CL 0 0 L) C) Q a) CL _0 CU Z Z a) tt) z a) -0 W O 0 :t- 0 CO 0 - Ca 0 - (D CD 0 0 W 0 7j6 0 m C 1, 0 CD m 4- 40- 0 '0 Mt 0 M 2 5 00 —>, Jo = = — M M a, a) cv- < lu 00 -6 a 7u- 0 < L) 0 0 a) :E 0 < 0 0 0 C14 0 0 0 0 0 w ru W 0 ca — 3: LL 0 < 4) 0 m — a) LL 2 o W CL 0 (L > :3 IL (D 'n IL a) a) LL >, a) E o a) ca a) E q a) a) a) 0 0 M 0 m C CO LU 0 0 as is 0 w G) CL a) T; a) m 0 z Z > E > cm 0 E < >, > cu > > 0) 0 OL C) LU D ID 0 C L o 0 0 00 m 0 > m CL CU C 0 cps .�2 CL CL 0 D c - 0 C: > a) -0 n- cc 2 0 2 O LL o — C: to > 0 c, Z Q) cu Q > M E • N 0) c 0 0 m cu " ca N 0 - C". = — (a C co m CL m '47 U� —0 0 0 0 a) ell �O E E 0 (D CL p CS cc 0 0 U. 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U) 20 > rz 0 C CL ej C M T 0 ': m CX 0- -L m Q� co 6, E (.0 2 > U) lt 0 0 'a ca Q a > 0 I 0 E E 0 CL > 0 to ca Mn O 0 LL 4) CL CD w cc L .0 0) as C: U) (D 0 it 0 CD 0 m 4) ca- 0 0 > 0 0 *0 c cz rh a CL C4 -0 CL CD (D cc (D 0 2D M a) 0 Y, E -a 2 o 0 C: — co a w 0 m 0 m CL -a Q - E o a '2 w Q 0 -0 ED a 73 clL Co rn U} 0 c Co (C CO LL c > D :p uj cr CD (9 0 0 w LL LZ LL LL Q- 0 (L a- U- LL U- LL U- W D 0 0 W 0000UO3:00 sn co ca C-4 LL a- 0 LL W 1— 0 0 CL n 0 CL U- M Din U-U-LLU-LLZMWWwWWOOO aH3 + H�o I I APPENDIX £ REPRESENTATIVE PROJECT AREA PHOTOGRAPHS a�+5 °F �Iyo Top: Non-native annual grassland, which is the only plant community present in the Project Area. Bottom: Topographical feature on west side of the Project Area. Photographs taken April 28, 2009. ru ENVIRONMEN7AL CONSUL7AN7S HHQ Tf LIy� Appendix C: Cultural Resources Study J�F tLAHO boLman& ASSOCIATES Auchaeol.ogical. Consultants "SINCE THE BEGINNING" CAL CALIFORNIA 94110 SA 4 S /SSO FRANCISCO, 8 Jim Tong Charter Properties 4690 Chabot Drive #100 RECEIVED Pleasanton, CA 94588 JUN 1 ? 2009 May 8, 2009 DUBLIN PLANNING Dear Mr. Tong: RE: CULTURAL RESOURCES STUDY OF THE DUBLIN RANCH NORTH PROPERTY, ALAMEDA COUNTY, CALIFORNIA At your request I have completed an archaeological field inspection of the above referenced project area located near the end of Fallon Road just south of the Alameda/Contra Costa County border in Alameda County, California. No evidence of historic and /or prehistoric archaeological resources was found. This report contains a summary of information gained from an archaeological literature review and a field inspection. PROJECT DESCRIPTION The proposed project area consists of an approximately 30 acre parcel of land located just east of the Silvera Ranch complex in northern Alameda County. Located on the Livermore U.S.G.S. map, the borders of the property are defined by fence lines: the property itself consists of four lots which drain primarily to the west into a dry Swale; at the time of my field visit the property was covered by a sparse layer of native and imported grasses, lacking any exposed bedrock and/or tree stands. The nearest historic ranch improvements are to be found on the southern edge of the property at the former end of Fallon Road_ In addition, an unused paved road ending in a cul -de -sac reaches the edge of the property from the Silvera Ranch property, part of an earlier housing subdivision which has not been completed. ARCHIVAL RESEARCH An archaeological literature review was conducted by this author in person at the Northwest Information Center (KWIC file #08 -1339) on May 4`h, 2009 to obtain information about recorded historic and/or prehistoric sites inside or near the project area and to obtain any formal archaeological studies of the project area. There are no historic and/or prehistoric sites recorded inside the project area. The nearest ayq t u�l� recorded historic resources are found just north of the project area near the county line, and at the Silvera Ranch itself. These sites were recorded by Holman & Associates either in 1988 as part of the East Dublin General Plan Amendment, or in 1998 as part of the North Livermore Master Plan/Specific Plan done for the County of Alameda. The maps included in the 1988 East Dublin study or in the Master Plan/Specific Plan Livermore study suggest that the property had been surveyed completely in the past. In a conversation with Mr. Randy Wiberg, he clarified that the current project area was given a general inspection in 1988; he also confirmed that the lands surrounding the current study area (a portion of the larger Livermore study area) was only inspected in 1998 to verify the location of the scattered historic ranch improvements found in the general area; these resources were recorded. The Livermore report ranked the land inside that study area in terms of their potential archaeological sensitivity. This portion of the current study area was thought to have a generally low archaeological sensitivity and thus was not visually re- inspected. DESCRIPTION OF FIELD INSPECTION A visual inspection of the project area was conducted by this author on April 30, 2009 with the aid of Mr. Jim Templeton of MacKay & Somps. The upper slopes of the property were traversed in 150 foot transects to visually inspect the ground surface; a more intense visual inspection was conducted on the bottom of the slopes which drains to the south. At the time of my field visit, the entire area was covered by a light covering of native and imported grasses; other than the grass covering, the property is devoid of larger brush or trees, and there are no visible rock outcrops which might have been used for seed grinding stations, as repositories of rock art or for quarrying activities. SUMMARY OF FINDINGS/RECOMMENDATIONS No evidence of historic and/or prehistoric archaeological resources was found during the field inspection. It is the opinion of this author that future development of this parcel (requiring earthmoving for building pads and roads) will have no effect on cultural resources: this property was utilized at best as a source of seed collection in the spring and probably for hunting, but otherwise would not have supported village or camp sites or special use areas associated with rock outcrops or specific food -sources other than grass seeds. This report does not recommend mechanical subsurface presence/absence testing for potentially buried archaeological deposits, and does not recommend archaeological monitoring of future earthmoving activities. Sincerely, ,A— Miley Paul Holman Holman & Associates 2 Wallace, Roberts & Todd 1988 Eastern Dublin General Plan Amendment and Specific Plan Studies. Environmental Setting: Work Task #9 Wiberg, Randy, Randall Dean and Miley Holman 1998 A CULTURAL RESOURCES STUDY FOR THE NORTH LIVERMORE MASTER PLAN /SPECIFIC PLAN ENVIRONMENTAL IMPACT REPORT, ALAMEDA COUNTY, CALIFORNIA. On file, Northwest Information Center file no. S- 20335 Wiberg, Randy 2009 Personal communication regarding the level of archaeological field inspection of the North Livermore Master Plan/Specific plan area and earlier 1988 WRT study. 3 LIVERMORE U.S.G.S. MAP IOU L goo o 600- , ` 1 f aD CIO P 1V GAA2� ' Y t 85 6D ' boo "oo 0o O i O z � . • � � ago e00 1 � PROJECT AREA ------ ?on � o HM j K 700 _ z 461 .F o0 00. i •• . boo Sp -ng !. 28 C� 600 500 e _ _ tJ j 11"o � ..cn a 34 U) •33 MIU� +Q1! 35a Appendix D: Preliminary Geologic and Geotechnical Report BERLOGAR GEOTECHNICAL CONSULTANTS SOIL ENGINEERS ENGINEERING GEOLOGISTS FEASIBILITY -LEVEL GEOTECHNICAL INVESTIGATION NORTHWEST PORTION OF REDGEWICK PROPERTY FALLON ROAD DUBLIN, CALIFORNIA FOR MS JENNIFER LIN do MR. JIM TONG, CHARTER PROPERTIES May 18, 2009 i t May 18, 2009 Job No. 1394.131D BERLOGA� GEOTECNNtCAL Ms Jennifer Lin c/o Mr. Jim Tong Charter Properties 4690 Chabot Drive, Suite 100 Pleasanton, California 94588 Subject: Report Feasibility -Level Geotechnical. Investigation Northwest Portion of Redgewick Property Fallon Road Dublin, California Dear Ms Lin: INTRODUCTION This report presents the results of our feasibility -level geotechnical investigation of the northwest portion of the Redgewick property, located off Fallon Road in Dublin, California. The site is shown in relationship with the City of Dublin on the Vicinity Map, Plate 1. Based on the Vesting Tentative Map (dated May 2009) prepared by MacKay & Somps, we understand that site development is planned to include 4 residential building pads on the west flank of the hillside and a single roadway that will connect .to the Silvera Ranch development in the southwest corner of the site. Site grading is planned to include 3 cuts across spur ridges up to about 32 feet deep and placing fill in 2 swales up to about 42 feet thick. Cut slopes are planned at gradients of not steeper than 2'/2 Horizontal to 1 Vertical (2 %Z H:1V). The northern fill slope is planned at a gradient of not steeper than 3H: 1V and the southern fill slope is planned at a gradient of not steeper than 2' /2H:l V. PURPOSE AND SCOPE OF SERVICES The purpose of this investigation was to evaluate the feasibility of the proposed residential development from the standpoint of engineering geology and geotechnical engineering, and to present preliminary geotechnical recommendations. Our investigation services consisted of the following tasks: I . Review of published geologic maps and literature covering the site and vicinity. 2. Review of available stereo - paired aerial photographs covering the site and vicinity. 3. Site geologic reconnaissance. 4. Excavation and logging of twelve test pits (TP -1 through TP -12). SOIL ENGINEERS • ENGINEERING GEOLOGISTS • 5587 SUNOL BOULEVARD • PLEASANTON, CA 94566 • (925) 484 -0220 • FAX: (925) 846 -9645 r r r r .l 055 May 18, 2009 Job No. 1394.131D Page 2 5. Analysis of geologic and geotechnical engineering findings from the above four tasks, and development of preliminary recommendations for site preparation and grading, landslide mitigation, expansive soil, foundations, retaining walls, pavements, and seismic considerations. 6. Preparation of this report presenting our findings, conclusions, and recommendations. FINDINGS SURFACE CONDITIONS The site is an irregular - shaped area measuring approximately 1,600 feet long by 1,000 feet wide in plan view, as shown in the Preliminary Geologic Map, Plate 3. With the exception of the on -going residential construction on the Silvera Ranch property near the southwest corner of the site, the site is bounded mostly by undeveloped ranch land. S ite topography ranges from approximately 640 feet above mean sea level in the northwest comer of the site up to 880 feet along the east site boundary. The site is dominated by a west- facing ridge flank. This ridge flank rises to a north - trending ridge crest, which dominates the eastern boundary of the site. The ridge flank is gently undulating, with about four small ridge spurs and intervening swales gently plunging to the west from the ridge crest. Generally, the steepest slopes at the site have a gradient of about 2H:1 V. We did not observe evidence of free surface water or springs, aside from a potential for water to accumulate in swales. There are no visible man-made features on the site aside from barbed -wire fencing near the perimeter and a few vehicle tracks. REGIONAL GEOLOGY The site is situated within the Coast Ranges geomorphic province of California, which is characterized by northwest trending, folded and faulted mountain chains. In this part of the province, sedimentary deposits of the Tassajara Formation, which is Pliocene to Pleistocene in age, underlie the area (Dibblee, 1980; Crane, 1988). The region has been folded and faulted .during the past 3 million years due to right- lateral oblique motions between the Pacific and North American tectonic plates. EARTH MATERIALS During the investigation, we encountered three types of earth material, described from youngest to oldest: LANDSLIDE DEPOSITS Based on surface reconnaissance and interpretation of aerial photographs, our Preliminary Geologic Map shows four small, recent earth -flow landslide deposits in the northern portion of the site, three within a swale and the fourth along a ridge spur. In addition, this map shows four possible older landslide deposits within swales at the site. Another suspected landslide is interpreted initiating on the adjacent property to the north and crossing into the site. Three of the four older features BERLOGAR GEOTECHNICAL CONSULTANTS. � Llyo May 18, 2009 Job No. 1394.131D Page 3 correspond to - landslides that Nilsen (1975) showed on his regional photo interpretation map. Based on our interpretation of aerial photographs, we slightly modified Nilsen's three features and added a fourth possible older landslide feature. During our limited subsurface exploration with test pits, we encountered no evidence of the existence of these features. These findings are preliminary, and future geologic investigation, as project - planning advances will be needed to confirm or refute the existence of these possible landslide deposits. The alternative explanation is these swales contain particularly thick deposits of colluvial soil. Landslide deposits are marked with the symbol Qls on ,i the Preliminary Geologic Map. COLLUVIUM Colluvium is soil derived from in -place weathering of the underlying bedrock that then moves downslope by gravity (creeping, washing, and tumbling). Colluvium mantles all slopes to some degree and collects in particularly thick deposits within the bottoms of swales and at the bases of slopes. Colluvium was found to range from about 2'/2 feet thick near the ridge crest (Test Pits TP -1) and tops of ridge spurs (Test Pits TP -6 and TP -12) to as much as 13 feet thick in the bottom of one swale (Test Pit TP -11). The colluvium consists of dark gray - brown, very stiff to hard clay with some fine sand. This soil appears to have moderate to high plasticity and expansion potential. Colluvium is shown using the symbol Qc on the Preliminary Geologic Map only where estimated to be thicker than about 5 feet. BEDROCK Dibblee (1980) and Crane (1988) mapped bedrock beneath the site as belonging to the Plio- Pleistocene Tassajara Formation. This unit consists of grayish to yellowish brown, silty, fine- grained sandstone and silty claystone. These materials typically have a friable, barely rock -like, nearly soil - like consistency. In a few places we could observe crude bedding that strikes northwest and dips between 16° and 45' to the southwest. These bedding attitudes agree with regional attitudes mapped by Dibblee (1980). The Tassajara Formation is indicated using the symbol QTt on the Preliminary Geologic Map. FAULTING The site is not located within a State of California designated Earthquake Fault Zone for active faults. (Davis, 1982). According to the State of California, a fault is considered active if it has demonstrated Holocene activity (within the past 11,000 years). We did not encounter evidence of active fault traces crossing, passing near, or trending toward the site. GROUNDWATER We did not encountered shallow groundwater in test pits during our field investigation. We would anticipate that shallow groundwater could be present during wet times of the year within swales at the ground surface or a few feet deep. Groundwater levels are expected to fluctuate seasonally. BERLOGAR GEOTECHNICAL CONSULTANTS r C�5 + Lilo May 18, 2009 Job No. 1394.131D Page 4 CONCLUSIONS AND RECOMMENDATIONS GENERAL From a geologic and geotechnical standpoint, the proposed development appears to be feasible provided the conclusions and recommendations contained in this report are followed in the planning phase of the project. The conclusions and recommendations that follow in this report are preliminary only. A detailed, design -level geotechnical investigation is required as project planning advances, and the recommendations from such an investigation should be incorporated into final proj ect design and construction. The primary geotechnical issue affecting the proposed development is presence of expansive soil and claystone at the site, which are susceptible to significant volume changes (swell and shrinkage) when . subjected to changes in moisture content. Other geotechnical concerns addressed in this report include the following: potential settlement of future fill, stability of future cut and fill slopes, and possible landslide deposits or thick colluvium within the proposed development. EXPANSION POTENTIAL The expansion potential of materials at the site probably ranges from moderately to highly expansive. This is based on visual /tactile evidence from the samples from our test pits at the site and our laboratory tests on samples of similar materials from the neighboring Dublin Ranch projects. The degree of expansion of the on -site materials is chiefly a function of the following factors: the type of soil and bedrock materials and clay composition, in -place moisture contents of the materials, in -place density of the materials, and overburden pressures or surcharge loads acting on the materials_ The two main expansive material types at the site are (1) the near - surface colluvium, residual soil, and possible_ landslide debris, and (2) beds of claystone and silty claystone within Tassajara Formation bedrock. The near - surface soils are likely highly expansive when subject to changes in moisture content. The siltstone and claystone beds are likely moderately to highly expansive, with variations between particular beds of claystone. Based on our experience with this geologic formation, we believe potential total swelling of future fill composed of these materials can be limited to an acceptable range provided future fill is placed and compacted in accordance with detailed engineering criteria to be developed later. A more- detailed picture of the potential ranges of total swelling of these materials and required compaction criteria to maintain swell within a narrow, predictable range will need to be developed with laboratory testing and analysis during a desigrrlevel geotechnical investigation for the project. SETTLEMENT Based on our laboratory tests on samples of soil and Tassajara Formation from the neighboring Dublin Ranch project, future fills composed of native materials at the site will undergo settlement during placement and for a duration after mass grading. We believe potential total settlements can BERLOGAR GEOTECHNICAL CONSULTANTS May 18, 2009 Job No. 1394.131D Page 5 ' be limited to an acceptable range provided future fill is placed and compacted in accordance with ;1 detailed engineering criteria to be provided later. A more- detailed picture of the potential ranges of total settlement of these materials and required compaction criteria to maintain swell within a jnarrow;. predictable range will need to be developed with laboratory testing and analysis during a design -level geotechnical investigation for the project. Based on the current grading plan, two of the swales are planned to receive engineered fill. If future investigation in the swale areas shows evidence of landslide deposits, or if the colluvium is determined to not provide a stable base for engineered fills, then these deposits would need to be removed to stable bedrock and replaced with engineered fill. Settlement of this replacement fill would need to be estimated and incorporated in project planning. If, instead of landsliding, these swale deposits show a colluvial origin, then their removal may be more limited. This in -place soil is very stiff to hard, and could have low compressibility potential. Colluvial deposits left in place are anticipated to undergo limited settlement during fill placement and for a duration following mass grading. LANDSLIDE MITIGATION Recent landslide deposits were identified on the north side of the site during our fieldwork, as shown on the Preliminary Geologic Map. These deposits are situated such that they will have no effect on the currently proposed development. Three of the possible older landslide deposits identified are located in areas that could impact development, as shown on the Preliminary Geologic Map. Of these, the portion of the landslide deposits that are determined to impact improvements during future design -level investigation will need to be overexcavated down to competent bedrock and replaced with engineered fill. Remedial recommendations, if needed, can be presented after grading plans are prepared and detailed geotechnical investigation has been performed. SITE PREPARATION AND GRADING We anticipate that recommendations for site preparation and grading will be typical for hillside residential projects in the vicinity. Detailed recommendations for clearing and stripping, removal of surficial soil from fill areas, scarification of exposed surfaces in fill areas, selection and evaluation of fill material, relative compaction and moisture conditioning off 11 materials, and keying, benching and subdrainage of fill all should be provided with a detailed, design -level geotechnical investigation. SHRINKAGE /SWELL FACTOR Based on the compaction test results from samples of similar materials from the neighboring Dublin Ranch development, we anticipate a swell factor of approximately 5 to 10 percent in the earthwork quantities. A site - specific estimate of shrinkage or swell can be provided with a detailed, design- level investigation. CUT SLOPES Cut slopes at the site are currently planned at gradients of not steeper than 2' /2H:l V. We judge, that cut slopes in sandstone and /or sandy siltstone bedrock can generally be constructed at gradients no BERLOGAR GEOTECHN[CAL CONSULTANTS r J r May 18, 2009 Job No. 1394.131D Page 6 steeper than 21/2 H:1 V. Cut slopes exposing clayey siltstone and/or claystone may not be stable at the 2 %zH:IV or steeper gradient and may require overexcavation of the unsuitable materials and construction of a buttress fill slope. Cut slopes less than 10 feet in (finished slope) height should be . no steeper than 214:1 V. The stability of cut slopes depends on (1) the orientation of the cut slope with respect to bedrock structure, (2) the strength properties of materials exposed in the cut slope, and (3) other adverse conditions (e.g., ground water). We anticipate that cut slopes could be potentially unstable where (1) the cut slope exposes clayey siltstone and/or claystone bedrock, 2) the cut slope exposes thick colluvium or (3) where bedrock structure (e.g., dip or joint orientation) is adverse in relation to cut slope geometry. We recommend an engineering geologist inspect all cut slope exposures for evidence of potential instability. In general, areas where natural slope gradients are steeper than about 5H:1 V, colluvial deposits are considered susceptible to downslope creep and potential slope instability. Cut slopes for the project are planned at 21/2H:1 V, therefore colluvium exposures will warrant remedial treatment, consisting of some combination of removing colluvium at the crest of the cut slope, subdrainage, and placement of an engineered buttress fill. The stability of cut slopes in bedrock largely depends on the orientation of the cut slope with respect to bedrock structure. Bedrock dips at the site were found to vary from about 16° to 450 to the southwest. Where adverse bedrock structure or other zones of geologic weakness are anticipated or encountered in cut slopes, we anticipate that remedial measures such as flattening the slope, or construction of a slope buttress could be needed. An engineering geologist should evaluate specific remedial alternatives as cut slope conditions are exposed during grading. Based on the current grading plan, we understand that benches with concrete lined V- ditches are not planned for the 2' /zH: l V cut slopes. From a slope stability standpoint, the benches and V- ditches can generally be omitted provided that additional erosion control measures are included on the portion of the slope that is 20 feet below the top of slope. Subdrainage might be required at toes of the three cut slopes. Following grading, cut slopes should be planted with deep - rooted, fast- growing vegetation before the first winter to resist erosion. FILL SLOPES The stability of planned fill slopes depends on proper keyways, benching, subdrainage, fill compaction, and slope gradients. The current grading plan shows two fill slopes planned at the site. The northern fill slope will be constructed in a swale at a gradient of 314:1 V. We judge this to bean appropriate slope gradient for the materials anticipated to be used'for fill at the site. The southern fill slope is also being placed in a swale, but is planned at a gradient of 21/2H:1 V. Constructing the fill slope at a 2 %H: IV gradient can be achieved provided the outer 50 feet of the slope is constructed of select sandstone bedrock cut derived materials. If there is not enough sandstone materials generated from cut slopes at the site, geogrid reinforcement may be needed for 2% H:1 V fill slope construction: Fill slopes less than about 10 feet in vertical height should be constructed at slope gradients no steeper than 2H:1 V. Ifresidual soil, colluvium, or landslide debris will be used in fill slope material, I BERLOGAR GEOTECHNI A C L CONSULTANTS '- ago of Nyo May 18, 2009 Job No. 1394.131D Page 7 they should be properly blended with granular bedrock materials; a blending ratio of 1 part soil to 3 parts (minimum) granular bedrock should be maintained for fill slopes. Based on the current grading plan, we understand that benches with concrete lined V- ditches are not planned for the southern fill slope that is planned at a gradient of 2 %H: 1V. From a slope stability standpoint, the benches and V- ditches can generally be omitted provided that additional erosion control measures are included on the portion of the slope that is 20 feet below the top of slope. Fill slopes should be constructed in accordance with the recommendations shown on Plate 4. EROSION PROTECTION All cut slopes and fill slopes should be seeded or planted with deep- rooted, fast - growing vegetation before the first winter to reduce erosion. Consideration should be given to some irrigation of slopes; specific details regarding irrigation systems, locations, and discharge should be reviewed by BGC prior to their approval. As discussed above under the sections for Cut Slopes and Fill Slopes, additional erosion control measures may be needed for the 2 `/z H:1 V slopes if benches and V- ditches are not planned. SUBDRAINAGE Seepage could be encoun tered at the bottoms of slopes, swales and cut slopes. Subdraina e might be needed in the following areas: 1. Within swales that receive fill; 2. On the uphill side of all keyways; 3. Along the toes of cut slopes; 4. At springs and seepage areas; 5. At geologic contacts that are observed transm itting seepage; and '. 6. In other areas of the site where seepage is observed during and after grading, such as toes of cut slopes, or as determined by the soils engineer. Subdrains should consist of perforated PVC pipe conforming to ASTM Designation D 2751, Type SDR 35 for fill depths less than 30 feet and Type SDR 23.5 for fill depths over 30 feet. Subdrain pipes should have two rows of holes and should be installed with holes facing downward. Subdrain pipes should be at least 6 inches in diameter. All subdrain pipes should be underlain and surrounded by at least 6 inches of Caltrans Class 2 permeable material, as defined in Section 68 -1.025 of the California Standard Specification (2006 Edition). Subdrain trenches should be at least 18 inches wide and at least 4 feet deep. Final trench configurations should be approved by the soils engineer in the field. Subdrain details are presented on Plate 5. Subdrain systems should be discharged into storm drain structures, where possible, or other suitable surface discharge points. Some areas of seepage could develop during or after house construction. Additional subdrains could be needed in these areas. BERLOGAR GEOTECHNICAL CONSULTANTS 7 C r t May 18, 2009 Job No. 1394.131D Page 8 EXCAVATION CHARACTERISTICS Conditions encountered in test pits, as well as our experience in the area, suggest that in general the bedrock is rippable to anticipated excavation depths using conventional grading equipment. CUTIFILL TRANSITION LOT TREATMENT if the residences will bear on shallow foundations (structurally reinforced mat or spread footings, see below), then building pads crossed by cut/fill transitions will require special treatment during earthwork construction. To provide a relatively uniform subgrade to support such house foundations, the cut portions of cut/fill transition lots should be overexcavated about 3 feet below design pad grade and replaced with engineered fill. The overexcavation should extend at least 5 feet laterally beyond the foundation footprints. The bottom of the overexcavation should be scarified, moisture conditions, and compacted in accordance with the recommendations of a geotechnical engineer. FOUNDATION CONSIDERATIONS Because of the relatively significant potential for long -term settlement and swell, our preliminary recommendation is that foundations for houses should consist of structurally reinforced mat systems designed to resist potential differential movement of the on -site expansive soils. - At the preliminary design level, it could be anticipated that structural mat foundations will need to accommodate 3 inches total soil movement and 3/4 inch in 25 horizontal feet differential soil movement without experiencing structural distress to the mat or excessive deflections in the house framing and wall finishes. It may also be anticipated that the mats can be designed for an allowable uniform soil pressure on the order of 1,500 psf, and resistance to lateral loading using a base friction factor on the order of 0.3 between slab and subgrade may be appropriate. Additional measures such as capping pads with low- expansive material and pre - soaking pad subgrades might be required. If desired, raised wood floor for residences supported on other types of foundations, such as spread footings or piers and grade beams, also could be utilized at the site. Detailed criteria for mat foundations should be developed based on the results of future sampling, laboratory testing, and analysis for potential settlement and swell. OTHER STRUCTURES We anticipate that geotechnical recommendations for other structures, including exterior concrete work and utility trenches, will be typical for hillside residential developments in the area, and will not be factors affecting the feasibility of the development. Detailed recommendations should be provided with a detailed, design -level geotechnical investigation as project planning advances. CORROSION CONSIDERATIONS Tests for corrosive properties of on -site materials should be performed during design -level investigation of the site. Corrosive soils can attack metal piping and concrete structures in contact with the soil. Findings from similar earth materials at the neighboring Dublin Ranch development showed conductivity levels within the range of moderately corrosive. Typical soil parameters analyzed to evaluate for corrosion potential include sulfate, redox potential, pH, conductivity, BERLOGAR GEOTECHNICAL CONSULTANTS vr- "-Iv May 18, 2009 Cf . Job No. 13 94.13 1 D Page 9 resistivity, sulfide, and chloride. If future testing at the Redgewick site indicates a need, a corrosion specialist could be commissioned for specific testing and evaluation and, if required, advice on corrosion protection measures to be taken. SEISMIC HAZARDS SURFACE FAULT RUPTURE The site is located outside official State of California designated earthquake fault zone (Davis, 1982) for active faults, and the potential for surface fault rupture at the site is low. GROUND SHAKING The site is located in a region of high seismicity given the proximity of the Calaveras fault and other active fault systems in the San Francisco Bay area. As for all.sites in the bay area, the project can be expected to experience at least one moderate to severe earthquake during the life span of the development. Ground shaking is a hazard that cannot be eliminated but can be partially mitigated through proper attention to seismic structural design and observance of good construction practices. LIQUEFACTION Liquefaction is the temporary transformation of a saturated, cohesionless soil into a viscous liquid during strong ground shaking from a major earthquake. There is no evidence of historic ground failure due to liquefaction on the site, nor did we encounter any earth materials that might be susceptible to liquefaction. Additionally, based on the Seismic Hazard Map prepared by the California Geological Survey for the Livermore Quadrangle (CGS, 2008), the site is not located in an area of expected liquefaction. Therefore, the risk of liquefaction is low. GROUND SUBSIDENCE Ground subsidence can occur as a result of dynamic densification, or "shakedown," when dry cohesionless soil is subjected to earthquake vibrations of high amplitude. Loose cohesionless soils were not encountered in our site investigation; therefore, seismic induced ground subsidence is not considered a geologic hazard at this site. EARTHQUAKE - INDUCED LANDSLIDING Strong ground shaking during a major earthquake is likely to cause sympathetic reactivation of landslides in many parts of the bay area. The stability of all slopes is lower during earthquake disturbances than at other times. The site is shown within an area of potential seismically induced iandsliding on Seismic Hazard Map for the Livermore Quadrangle (CGS, 2008). Grading in accordance with the detailed recommendations of a geotechnical engineer is expected to result in a low risk of seismically induced landslides. _!'<,: BERLOGAR GEOTECHNICAL CONSULTANTS r r aP3 it Oqo May 18, 2009 Job No. 1394.131D Page 10 LIMITATIONS The conclusions and recommendations of this report are based upon (1) the information provided to us regarding the proposed residential development, (2) subsurface conditions encountered at the test pit locations, (3) our geologic reconnaissance, and (4) professional judgment. This study has been conducted in accordance with current professional geotechnical engineering and engineering geologic standards; no other warranty is expressed or implied. The locations of the test pits were determined by field estimating from topographic and cultural features indicated on the 2001 topographic map supplied by MacKay and Somps at the time of our field investigation, and are to be considered approximate only. The elevations discussed in this report were also taken from the MacKay and Somps map and are approximate only. Site conditions are described in the text as they were observed during our fieldwork in the summer of 2001, and are not necessarily representative of such conditions at other locations and times. If it is found during construction that subsurface conditions differ from those described on the test pit logs then the conclusions and recommendations in this report shall be considered invalid, unless the changes are reviewed and the conclusions and recommendations modified or approved in writing by BGC. Respectfully submitted, BERLOGAR GEOTECHNICAL CONSULTANTS �5�pp4AL Gall :r. 0 2328 1WV1N JAMES RYAN t Z Kevin es Ryan �n�m Pa 1 S 1- in g Laid Seni6r Geologist ENGiNEMNG Pr cipal Engineer OLO� 12/31/0 CEG 2404, Exp. 9 /30 /10 G 2326, Ex p. KJR/PSL:jmb Attachments: References Plate 1 — Vicinity Map Plate 2 — Area Geologic Map a Plate 3 — Geologic,Map Plate 4 — Typical bill Slope Detail Plate 5 — Typical Subdrain Detail Appendix — Test Pit Logs Copies: Addressee (2) MacKay & Somps (3 — via Hand Delivery) Attention: Ms Lisa Vilhauer 1394.131 D/22156.doc BERLOGAR GEOTECHNICAL CONSULTANTS REFERENCES Barlock, V.E., 1988, Geologic Map of the Livermore gravels, Alameda county, California: U.S. Geological survey Open -File Report 88 -516. California Geological Survey, August 27,2008, Seismic Hazard Zones, Livermore Quadrangle, official map: CGS seismic hazard zones map. Crane, R.C., 1988, Geologic map of the Livermore quadrangle, Alameda County, California, unpublished map prepared for the Northern California Geological Society. Davis, J.L., 1982, State of California special studies zones Livermore revised official map: California Division of Mines special studies zones map• Dibblee, T.W., 1980, Preliminary geologic map of the Livermore quadrangle, Alameda and Contra Costa Counties, California: U.S. Geological Survey Open -File Report 80 -537. Nilsen, T.H., 1973, Preliminary photo interpretation map of landslide and other surfcial deposits in the Livermore and part of the Hayward 15- minute quadrangles, Alameda and Contra Costa Counties, California: U.S. Geological Survey Miscellaneous Field Studies Map MF -493. AERIAL PHOTOGRAPHS Date Flown Source Film ID 4/20/1986 PAS AV 2862 5/5/1978 PAS AV 1498 9/21 /1973 USGS 1 5/15/1969 PAS AV 903 PAS = Pacific Aerial Surveys USGS = U. S, Geological Survey BERLOGAR GEOTECHNICAL CONSULTANTS Line Frames 6 17,18 J- 6 18,19 I 93, 94, 95 6 16,17,18 -'.�- l��- �.� ;'.�J 1 i'�lf1�! � i j_ 1 •1i✓ i'�{i ly CD /r� `¢� /� ! _ ..f_',I. O�.I Ali �. •4: � gr < < j M� ;`�,�oo y SITE Lsoo - , 1,•� Ile - _ - !■ 0 l << f� E Z X< - '• _ i.r-- _� ?fa�_A' '• "1.14, �•. .'I -, il.. .1`.•!"'1•4�'S y�.. � a� .t �..- 7•= •- L�.�.•�.�'. -. 0 2000' 1 " =20OU tE: PORTION OF U S.G.S. 7.5 MINUTE TOPOGRAPHIC QUADRANG LE• I- fVERMOFF- CALIFORNIA, PHOTOREVISED 1960, AT A SCALE OF 1:24,0W. BERLOGAR GEOTECHNICAL CONSULTANTS PLATE 1 VICINITY MAP NORTHWEST PORTION REDGEWICK PROPERTY - FALLON ROAD DUBLIN, CALIFORNIA FOR MS. JENNIFER LIN tE: PORTION OF U S.G.S. 7.5 MINUTE TOPOGRAPHIC QUADRANG LE• I- fVERMOFF- CALIFORNIA, PHOTOREVISED 1960, AT A SCALE OF 1:24,0W. BERLOGAR GEOTECHNICAL CONSULTANTS PLATE 1 U 0 T r to W .. L Q . r ' M T M r LLI m Z m O acI o 0 20.00' 1"=2000' ISE: PORTION OF PRELIMINARY GEOLOGIC MAP, LIVERMORE QUADRANGLE, CALIFORNIA, BY CRANE DATED 1988, AT A SCALE OF 124,000. BERLOGAR GEOTECHNICAL CONSULTANTS PLATE 2 EXPLANATION V!- --- GEOLOGIC CONTACT AXIS OF SYNCLINE - - - - - -- SANDSTONE BED ...... FAULT, DOTTED WHERE CONCEALED QTE TASSAJARA FORMATION T5 STRIKE AND DIP OF BEDDING Tps NON- MARINE DESIMENTARY AND VOLCANIC ROCK + --}— AXIS OF ANTICLINE 111 AREA GEOLOGIC MAP NORTHWEST PORTION REDGEWICK PROPERTY FALLON ROAD DUBLIN, CALIFORNIA FOR MS. JENNIFER LIN ISE: PORTION OF PRELIMINARY GEOLOGIC MAP, LIVERMORE QUADRANGLE, CALIFORNIA, BY CRANE DATED 1988, AT A SCALE OF 124,000. BERLOGAR GEOTECHNICAL CONSULTANTS PLATE 2 SLOPE TO DRAIN (SEE NOTE 2) PTUAL DESIGN GRADE SUBDRAIN- (SEE NOTE 3) (SEE NOTE 3) NOTES: NOT TO SCALE i- KEYWAY 15 FEET MINIMUM (SEE NOTE 1) 4 FEET MI NG GRADE TOPSOIL, COLLUMUM, OR LANDSLIDE DEBRIS 1. KEYWAY SHOULD EXTEND AT LEAST 4 FEET INTO COMPETENT MATERIAL AS DETERMINED BY THE SOIL ENGINEER. KEYWAY WIDTH SHOULD BE A MINIMUM OF 15 FEET OR 112 OF THE FILL SLOPE HEIGHT, WHICHEVER IS GREATER 2. WHERE NATURAL GRADE IS STEEPER THAN 7:1, BENCH INTO STIFF SOIL OR BEDROCK AS DETERMINED BY SOIL ENGINEER 3. SUBDRAINS TO BE CONSTRUCTED IN ACCORDANCE WITH THE DETAILS PROVIDED ON PLATE 5. SUBDRAIN LATERALS TO BE INSTALLED ON EXCAVATION BACKCUT SPACED EVERY 25 FEET VERTICALLY PREUMINARY TYPICAL FILL SLOPE DETAILS PLATE 4 Rrvi nr:eQ r.FOTFCHNICAL CONSULTANTS CLASS 2 PERMEABLE MATERIAL (NOTE 1) PERFORATED PIPE (NOTE 2) KEYWAY AS APPROVED BY THE SOIL ENGINEER KEYWAY SUBDRAIN 18 INCHES MINIMUM 18 INCHES MINIMUM 4 FEET MINIMUM 6l1NCHES I 1 COLLECTOR SUBDRAIN NOTES: ASS 2 PERMEABLE LTERIAL (NOTE 1) RFORATED PIPE (NOTE 2) 1. CLASS 2 PERMEABLE MATERIAL AS GIVEN IN SECTION 68 - 1.025, STATE OF CALIFORNIA STANDARD SPECIFICATIONS, JULY, 2006 EDITION. 2. PERFORATED PIPE PLACED PERFORATIONS DOWN, PVC PIPE WITH A MINIMUM DIAMETER OF SIX (6) INCHES, CONFORMING TO ASTM D -3034 SDR 35, FOR DEPTHS LESS THAN 30 FEET, AND SDR 23.5 FOR THE DEPTHS GREATER THAN 30 FEET. PRELIMINARY TYPICAL SUBDRAIN DETAILS PLATE 5 BERLOGAR GEOTECHNICAL CONSULTANTS BERU ..... ....... APPENDIX Test Pit Logs Job No. 1394.131 0 Q Northwest Portion of Redgewick Property Tassajara Road Alameda County, California TEST PIT LOGS Test Pit Depth Number Feet Description TP -1 0 -2'/2 Clay, dark grayish brown, dry grading down to moist, some fine sand. 2% -7 Sandstone and Claystone, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, sandstone is very fine - grained and silty. Bedding N40W 40SW. Total depth 7 feet No free groundwater encountered TP -2 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5 -10 Clay, grayish brown, moist, very stiff to hard, some fine sand. 10 -12 Clay, greenish gray, hard, wet. Shiny surface at 11 feet: N40W 16SW, no striations (bedding plane ?). Total depth 12 feet No free groundwater encountered TP -3 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5 -7 Clay, grayish brown to dark grayish brown, moist, hard, some fine sand. 7 -10 Sandstone, very fine- grained and silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded. Total depth 10 feet No free groundwater encountered TP -4 0 -5'/ Clay, dark grayish brown, dry grading down to moist, some fine sand. 5 %Z -7' /z Clay, grayish brown to dark grayish brown, moist, hard, some fine sand. 7'/2 -10 Sandstone, very fine- grained and silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded. Possible bedding N40W 35SW, very crude, vague. Total depth 10 feet No free groundwater encountered 1394.131 D/22156tp.doc A -1 BERLOGAR GEOTECHNICAL CONSULTANTS Job No. 1394.131 �� Q •� I " Northwest Portion of Redgewick Property Tassajara Road Alameda County, California TEST PIT LOGS Test Pit Depth Number Feet Description TP -5 0 -3 Clay, dark grayish brown, dry grading down to moist, some fine sand. 3 -7 Sandstone, grayish and yellowish brown, moist, friable, moderately weathered (in upper few feet) grading down to slightly weathered, moderately to highly fractured, thickly bedded, very fine - grained and silty. Total depth 7 feet No free groundwater encountered TP-6 0 -2' /z Clay, dark grayish brown, dry grading down to moist, some fine sand. 2% -6' /z Sandstone and Claystone, grayish and yellowish- brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, sandstone is very fine- grained and silty. Total depth 6% feet No free groundwater encountered TP -7 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5-6 Clay, grayish brown to dark grayish brown, moist, hard, some fine sand. 6-8'/2 Sandstone and Claystone, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, sandstone is very fine- grained and silty. Claystone as boudinaged bodies with crude alignment showing vague possible southwest dip. Total depth 8' /Z feet No free groundwater encountered 1394.131 DW156tp.doc A -2 BERLOGAR GEOTECHNICAL CONSULTANTS Job No. 1394.131'" L� Northwest Portion of O Redgewick Property Tassajara Road Alameda County, California TEST PIT LOGS Test Pit Depth Number Egetj Description TP -8 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand. 4 -5 Clay, grayish brown to dark grayish brown, moist, hard, some fine sand. 5 -9'/Z Sandstone, fine- and medium - grained, silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, Very crude bedding N30W 45SW. Total depth 9% feet No free groundwater encountered TP -9 0 -3 Clay, dark grayish brown, dry grading down to moist, some fine sand. 3-8 Sandstone and Claystone: grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive, sandstone is very fine- grained and silty. Total depth 8 feet No free groundwater encountered 1394.131 D/22156tp.doc A -3 BERLOGAR GEOTECHNICAL CONSULTANTS TP -10 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand. 4 -5 Clay, yellowish brown, moist, hard, sandy. 5 -8 Sandstone, fine- to medium - grained, silty, grayish and yellowish . brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive. Total depth 8 feet No free groundwater encountered TP -11 0 -5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5 -13 Clay, grayish brown, moist, hard. 13 -15% Patchy Claystone and Clay, grayand brown, friable claystone and hard clay. Total depth 151/2 feet No free groundwater encountered 1394.131 D/22156tp.doc A -3 BERLOGAR GEOTECHNICAL CONSULTANTS Test Pit Depth Number Feet TP -12 0 -2% 2'/2 -6 %2 Description Clay, dark grayish brown, dry grading down to moist, some fine sand. Sandstone, very fine- grained, silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive. Total depth 6% feet No free groundwater encountered 1394.131 D122156tp.doc BERLOGAR GEOTECHNICAL CONSULTANTS / Q! any *�Ho Appendix E: Supplemental Geotechnical Investigation 91 October l.. 2009 Job No. 1394.131D1 Ms. Jennifer Lin c/o Mr. Jim Tong Charter Properties 4690 Chabot Drive, Suite 100 Pleasanton, California 94588 Subject: Supplemental Geotechnical Investigation Northwest Portion of Redgewick Property Fallon Road Dublin, California Dear Ms. Lin: This report presents the results of supplemental geotechnical investigation to define the geology at the subject site. The geologic conditions at the site will determine the extent of grading that will be required for this project: We issued a Feasibility Level Geotechnical Investigation dated May 18, 2009 for this site, wbich identified areas of landslides and potential colluvial swales/iandslides. Landslides and colluvium were identified north of the building areas, and potential colluvium /landslides were delineated in three bowl - shaped locations within the proposed building areas. Subsequently, we excavated seven test pits in these bowl- shaped areas on September 27, 2009. The landslides north of the building areas should not impact improvements; hence, additional field exploration was not performed in this area. The recent test pits encountered 3 to 7 feet of soil overlying bedrock in the bowl - shaped areas. Shear planes were not observed in the test pits and the material appeared to be residual soil or colluvium; hence, we conclude that the three bowl- shaped areas are not landslides. Plate 1, Preliminary Grading Limits, shows the test pit locations, revised geology based on this supplemental investigation and preliminary limits of grading for this project. The test pit logs from this study and from the May 18'h investigation are also attached. Grading will include keying into the underlying bedrock at the bottom of fill slopes and installing subdrains. Cut slopes will expose highly expansive soil at the top of the cuts. This expansive soil material exposed on the cut slopes would be potentially unstable and undergo sloughing. In order to reduce the potential for surface soil sloughing, removal of the expansive clay one equipment width and replacement with compacted fill using select on -site bedrock materials is recommended at the top of cut slopes. More detailed grading recommendations will be provided in the design level geotechnical report to be issued at a later date. Sill. UNIG tiEERS • EK- JNF.ERING GEOLOGISTS • 358: SLIN01 B(AU1. EVARED • PLEASANTON. CA 945i 1, 14 25) 984 -02H t FAX: 19251 846.9645 We trust this provides the necessary information at this time. If you have any questions, please contact Bill Stevens or Frank Berlogar at (925) 484 -0220 or bstevens!cr�@berlokar.com. Respectfully submitted, BERLOGAR GEOTECHNICAL CONSULTANTS QROFE� /0 2 William R. Stevens! 2339 F B rlog ra Principal Engineer j Exp, 03 -31 -10 GE 2339, Exp, 3/31A0 FaF ca�.�F° WRS /FB:jInb Attachments: Plate 1 — Preliminary Limits of Grading Test Pit Logs, May 2009 Test Pit Logs, September 2009 Copies: Addressee (2) MacKay & Somps (3 mail and email) Attention: Ms Lisa Vilhauer 1394,13 ID1122408 doe BERLOGAR GEOTECHNICAL CONSULTANTS |E 2 § 7�A rF0�� r . § , / 5 7 g ! ! — 2 r w D v @ — . 22® �4§2¥. ! | ;§ M-H |,§ 2 © � ' § I%� 00;a 2 O z �S\ f ! !� � 2� ® ?! a ° : N m d § k) )\ !1 o! g Job No 1394.131 Northwest Portion of Redgewick Property Tassojara Road Alameda County, California TEST PIT LOGS Tesl Pit Depth Number Feet Description TP -1 0 -2'h Clay, dark grayish brawn, dry grading down to moist, some tine sand. 2'/z -7 Sandstone and Cloystone, grayish and yellowish brown, moderately weathered (it) upper few feet) grading down to slightly weathered, Noble, moderately to highly fractured, thickly bedded, sandstone is very fine- grained and silty, Bedding N40W 40SW. Total depth 7 feet No tree groundwater encountered TP -2 0-5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5-10 Clay, grayish brown, moist, very stiff to hard, some fine sand. 10-12 Clay, greenish gray, hard, wet. Shiny surface at 11 feel: N40W 16SW, no striations (bedding plane). Total depth 12 feet . No free groundwater encountered TP -3 0-5 Clay. dark grayish brown, dry grading down to moist, some fine sand. 5 - 7 Cloy, grayish brown to dark grayish brown, moist, hard. some fine sand. 7-10 Sandstone, very fine - grained and silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded. Total depth 10 feet No tree groundwater encountered TP -4 0 - 5'12 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5'/2 - 7'/2 Clay, grayish brown to dark grayish brown, moist, hard, some fine sand. 7Yz - 10 Sandstone, very fine- grained and silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to stightfy weathered, friable, moderately to highly fractured, thickly bedded. Possible bedding N40W 355W, very crude, vague. Total depth 10 feet No free groundwater encountered 1394 131 D122156tp.doc A--1 BERLOGAR G>OTECHNFCAL CONSULTANTS Job No. 1394,131 Northwest Portion of Redgewick Property Tossajora Road Alameda County. California TEST PIT LOGS Test Pit Depth Number Fee€ Description TP -5 0-3 Clay, dark grayish brown, dry grading down to moist, some fine sand. 3-7 Sandstone, grayish and yellowish brown, moist,.friable, moderately weathered (in upper few feet) grading down to slightly weathered. moderately io highly fractured, thickly bedded, very fine- grained and silty. Total depth 7 feet No free groundwater encountered TP -6 a - 2!/2 Clay, darts grayish brown, dry grading down to moist, some tine sand. 2'/2-61/2 Sandstone and Claystone, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, sandstone is very fine - grained and silty. Total depth 61,12 feel No free groundwater encountered TP -7 0-5 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5-15 Clay, grayish brown to dark grayish brown, moist, hard, some, fine sand. 6 - 8'h Sandstone and Claystone, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, thickly bedded, sandstone is very fine- grained and silty. Claystone as boudinaged bodies with crude alignment showing vague possible southwest dip. Total depth 8'/.) feet No free groundwater encountered t 394.131©l22166tp.doc J{_2 BERLOGAR GEQTECI-INICAL CONSULTANTS Job No 1394 131 Northwest Portion of Redgewick Property Tossojara Rood Alameda County, California TEST PIT LOGS Test Pit Depth Number iltg± Descriplion TP-8 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand. 4-5 Cloy. grayish brown to dark grayish brown, moist, hard, some fine sand. 5 -9'/2 Sandstone, fine- and medium - grained, silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured. thickly bedded. Very crude bedding N30W 455W. Total depth 9% feet No free groundwater encountered TP -9 0-3 Clay, dark grayish brown, dry grading down to moist, some fine sand. 3-8 Sandstone and Claystone: grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive, sandstone is very fine - grained and silty. Total depth 8 feet No free groundwater encountered iP -10 0-4 Clay, dark grayish brown, dry grading down to moist, some fine sand. 4 - 5 Clay, yellowish brown, moist, hard, sandy. 5-8 Sandstone, fine- to medium - grained, silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive. Total depth 8 feet No free groundwater encountered TP -11 0-6 Clay, dark grayish brown, dry grading down to moist, some fine sand. 5-13 Clay, grayish brown, moist, hard. 13-151/2 Patchy Claystone and Clay, gray and brown, friable Claystone and hard clay. Total depth 15'/2 feet No free groundwater encountered 1394.131 D=156tp doc A_3 BERLOGAR GEOTECHNICAL CONSULTANTS TEST PIT COGS Test Pit Depth Number Feet Descriotio.n TP -12 0 - 2'/2 Clay, dark grayish brown, dry grading down to moist, some fine sand. 2% - b'' /s Sandstone, very fine - grained, silty, grayish and yellowish brown, moderately weathered (in upper few feet) grading down to slightly weathered, friable, moderately to highly fractured, massive. 7ofai depth 6% feel No free groundwater encountered 1394,131 D1221 Mip.doc BERLOGAR GEOTECHNiCAL CONSULTANTS A_q TEST PIT LOGS Test Pit Depth Number feet Description TP -1 0-3 CL, gray- brown. dry, soft. 3-4 ML, gray - brown, dry, stiff. 4-5 Sandstone, very fine grained, friable, very highly weathered, brown. dry. Total Depth 5 feet No free groundwater encountered TP -2 0-3 CL, gray - brown, dry, soft. 3-4 Clayey Sandstone, gray- brown, dry to dump, hard, friable, very highly weathered. 4 -5 Sands tone/Sil tstone, yellow- brown, very fine grained, dry, very highly weathered, friable. Total Depth 5 feet No free groundwater encountered TP -3 0-2 Clay, gray- brown, dry, soft. 2-4 Claystone, greenish - brown, with cobble -sized white to pinkish, fery fine sandstone particles, rounded, some iron, stiff, very highly weathered, very highly fractured. Total Depth 4 feet . No free groundwater encountered TP -4 0-4 Clay, grayish- brown, soft, becoming stiff with depth, white linear stains. 4-7 Sandstone, very highly _ fractured, very highly weathered, very fine grained, dry, whitish- yellow brown, subrounded gravel -sized white nodules. Total Depth 7 feet No free groundwater encountered TP -5 0 -4 Clay, grayish- brown, soft, stiff with depth, dry. 4-6 Clayey Sandstone, greenish gray brown, friable, medium to coarse- grained, very highly weathered. Total Depth 6 feet No free groundwater encountered BERLOGAR GEQTECHNICAL CONSULTANTS TEST PIT LOGS Test Pit Depth Number feet Description T P -6 0-4 Clay, grayish4xown, sofa, stiff Wth depth. dry. 4-5 Clayey 5andsfone, gray- brown, very highly weathered, very fine. 5-6 Sandstone, gray brown, medium to coarse, f €table, very highly weathered. Total Depth 6 feet No free groundwater encountered TP -7 0 -3 Ciay, grayish - brown, soft, stiff with depth. dry. 3 - 5'/-a Clayey Sandstone, gray- brown, very highly weathered, medium - grained. Total Depth 5% feet No free groundwater encountered 1344.131 DIM4031r.doc BERLOGAR GEOTECHNtCAL CONSULTANTS Appendix F: Phase i Environmental Site Assessment Phase I Environmental Site Assessment for MacKay & Somps Redgewick Property 6582 Tassajara Road Livermore, Alameda County, California 94550 Comm. No. 2003 -03431 -0002 July 17, 2003 Eckland Consultants Inc. 222 Kearny Street Suite 306 San Francisco, California 94108 (415) 982 -2080 Phone (415) 992 -2082 Fax Phase I Environmental Site Assessment Redgewick Property Livermore, California TABLE OF CONTENTS EXECUTIVE SUMMARY 1. PROJECT IDENTIFICATION ................ ............................... II. OBJECTIVE AND SCOPE ..................... ............................... III. SITE DESCRIPTION .............................. ............................... IV. SITE HISTORY ....................................... ............................... V. SITE OBSERVATIONS .......................... ............................... VI. DATABASE RECORDS REVIEW ............. I ............ I............. VII. ASTM NON -SCOPE ITEMS .................. ............................... VIII. CONCLUSIONS AND RECOMMENDATIONS ................. IX. INTERVIEWS ......................................... ............................... ATTACHMENTS: Site Vicinity Map Parcel Map USGS Topographic Map Environmental Site Assessment Questionnaire Aerial Photographs EDR Database Report Site Photographs agto �yyc,' July 17, 2003 Comm. No. 2003 - 03431 -0002 ..............:...........1 ............... ..............................2 ............... ..............................4 ............... ..............................7 ............... ..............................9 .............. .............................11 .............. .............................17 .............. .............................19 .............. .............................20 I. PROJECT IDENTIFICATION Subject Site: Redgewick Property Location: 6582 Tassajara Road Livermore, Alameda County, California 94550 Site Area: 160 +/- acres (157.88 according to the Alameda County Parcel Map) Observation Date: July 9, 2003 Weather Conditions: Sunny with no precipitation Temperature: 80 °F Observed By: Timothy J. Casey Engineering Associate Report Prepared By: Timothy J. Casey Engineering Associate Richard E. Watson Licensed Architect Report Reviewed By: Michael P. Poulos Certified Environmental Professional Quality Assurance Manager Site Contact Name: Mr. Martin Inderbitzen Attorney at Law Contact Telephone: (925) 485 -1060 sib � Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 2 11. OBJECTIVE AND SCOPE Objective The purpose of this Phase I Environmental Site Assessment (Phase I) is to identify recognized environmental conditions that may have an impact on the subject site, using readily available sources of information, interviews and field observations. Procedures This Report is a Phase I for the Redgewick Property located at 6582 Tassajara Road in Livermore, California, performed in general accordance with ASTM Designation E 1527 -00, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process and following the Scope of Work outlined in Eckland Consultants Inc.'s Proposal dated May 27, 2003. Eckland Consultants Inc. (Eckland) conducted on -site observations on July 9, 2003, interviewed site operations personnel and observed adjacent properties. Database searches were conducted following ASTM guidelines by Environmental Data Resources Inc. (EDR). Such searches are generally limited to a radius of 1.0 mile from the subject site. Additionally, ASTM Non -Scope items are addressed in this Report, including Asbestos, Lead -Based Paint, Lead in Drinking Water, Radon Gas, Wetlands and Mold. No analytical testing was performed. Limitations Eckland Consultants Inc. does not warrant or guarantee the environmental conditions of the site or the Client's ability to assert a defense under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) or any comparable state or local law. Documents Our Report represents our professional experience and judgment, and a good faith effort to obtain readily available information to render a professional opinion. Documents and data provided by the Client, its designated representatives, or other interested parties, and consulted in the preparation of this Report, have been reviewed and may be referenced herein, with the understanding that Eckland assumes no responsibility or liability for their accuracy or for the withholding by any of the involved parties of any reports or other information that could affect the transaction. Intended Use This Report is intended to be used in its entirety. No portion of it may be deleted or used out of context without the written consent of Eckland. The opinions and information contained in this Report are time sensitive and represent our evaluation of the environmental site conditions at the time the services were provided. This Report was prepared for a limited use involving a single Phase 1 Environmental Site Assessment July 17, 2003 •Redgewick Property Comm. No. 2003 - 03431 -0002 Livermore, California Page 3 transaction, as set forth herein, and may not be used for any other purpose without the written consent of Eckland. Proprietary Information Field .data, field notes, and other data and documents assembled by Eckland to produce this Report represent the work product of Eckland's training, experience and professional skill. This information belongs to and remains the property of Eckland. Reliance This Report is for the exclusive use of the Lin Family, Charter Properties, Mr. Martin Inderbitzen (attorney), and, upon Charter Properties' approval, a yet- to -be- identified future conservation easement recipient. No other party shall have any right to rely on any service provided by Eckland without prior written consent. Definition For the purposes of this Report, a "Recognized Environmental Condition" is defined as the presence or likely presence of any hazardous substances, hazardous waste or petroleum products (as defined by ASTM E 1527 -00, Sections 3.2.15, 3.2.16 and 3.2.26) on the subject site under conditions that indicate an existing release, a past release or a.material threat of a release into the structures, ground, ground water or surface water of the subject site. The term is not intended to include de minimis conditions, but it does include issues of environmental significance to commercial real estate. The term "Historical Recognized Environmental Condition" (HREC) is defined as a condition that in the past would have been considered a. REC, but that may or may not be considered a REC currently, as judged by the current impact of the HREC on the subject site. R9 I �1 LAO Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003- 03431 -0002 Livermore, California Page 4 Ili. SITE DESCRIPTION Site Visit and Interviews On July 9, 2003, Timothy J. Casey, an environmental professional from Eckland, visited the subject site, a large parcel of undeveloped land with a proposed use of ecological and wetlands mitigation and conservation. Eckland was unaccompanied during the site walk - through. Mr. Martin Inderbitzen, the site contact, answered questions concerning the current and historical use, operations and improvements at the subject site. Mr. Inderbitzen stated that he has been associated with the subject site for the past 5 years and was familiar with the historical use of the property. Eckland requested completion of an Environmental Site Assessment Questionnaire (Questionnaire) regarding the subject site from Mr. Inderbitzen (Attorney at Law). A completed and signed copy of the Questionnaire has not yet been received by Eckland. A blank copy of the Environmental Site Assessment Questionnaire submitted by Eckland is attached to this Report. On July 16, 2003, Eckland received a completed and signed copy of the Environmental Site Assessment Questionnaire regarding the subject site from Mr. Inderbitzen, Owner's Representative. In the Questionnaire, it is reported that: 1) Minor quarrying activity has taken place at the site. Further discussion of . the quarrying activity is discussed below under the Exterior Surface Conditions heading of Section V, of this Report. A copy of the Environmental Site Assessment Questionnaire is appended to this Report. Eckland looked for suspect asbestos - containing building materials, stored chemicals, underground and aboveground storage tanks, unusual surface appearance, wetlands and other issues that may indicate environmental conditions at the subject site. Eckland noted the location of on -site electrical power transformers and storm drainage structures where these were encountered. Eckland observed sites adjoining the subject site and areas within the immediate vicinity of the subject site. Eckland photographed selected features at or near the subject site to support this written Report. The photographs are identified, described and appended to this Report. Subject Site The subject site is a rectangularly shaped parcel that contains a total area of approximately 160 +/- acres (157.88 acres) and is located in an area used for agriculture. The subject site is Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003- 03431 -0002 Livermore, California Page 5 landlocked along all boundaries, does not have street frontage along any boundary, and has indirect access from Tassajara Road. The topography of the site slopes steeply towards the southwest with a maximum surface elevation difference of approximately 300 feet. On -site storm water drainage is by sheet flow to the adjoining sites. There are no private wells or septic systems located on the subject site. Electric service is provided only to the water tank located at the southeast corner of the site. Pacific Gas and Electric Service is the electrical supplier and would be responsible for transformer- related incidents. Natural gas service would be provided by Pacific Gas and Electric Service. The site will be served by City of Livermore municipal water and sanitary sewer services from buried utilities along the adjacent thoroughfares. Buildings The subject site consists of vacant land. There is a water tank of unknown size with a paved road located in the southeast corner of the site. Adjoining Properties Properties immediately adjoining the subject site are listed in the following table. All adjoining properties are located in Livermore, California. Adjoining Properties Name Operation Direction from Site Concerns Agricultural Agricultural / Cattle Grazing North None Agricultural Agricultural / Cattle Grazing East None Residential/Agricultural Residential / Agricultural / Cattle Grazing South None Agricultural Agricultural / Cattle Grazing West None Because of the controlled surface drainage and the predominantly nonhazardous uses of these properties, they do not, in our opinion, pose .a significant environmental concern to the subject site. Vicinity Eckland observed other properties located near the subject site for current uses or conditions that may be environmentally significant. The local area properties observed by Eckland did not appear to be engaged in environmentally significant activities. Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No, 2003- 03431 -0002 Livermore, California Page 6 Topography and Hydrology According to the most recent United States Geological Survey (USES) Livermore, California, Quadrangle topographic map dated 1961 (photo revised in 1981), the subject site is approximately 550 to 883 feet above mean sea level. The general site drainage flows in a southwesterly direction across the surface of the site. No substantial grade changes appear to have been made to the subject site when compared to the topography of surrounding sites. A copy of the USGS topographic map that covers the subject site is appended. Geology, Hydrogeology and Surficial Soils The subject site is located above Tertiary -age, sedimentary bedrock, consisting of nonmarine alluvium. The depth to bedrock is not known. According to the Soil Survey for Alameda County, California, the subject site is located in an area of Altamont Clay. These soil types have low permeability and would be expected to have low susceptibility to ground water contamination as a result of surface spreading of wastes, depending upon local soil conditions. The direction of shallow ground water flow generally follows the surface topography, moving from high - ground areas toward low -lying areas such as streams, valleys and wetlands. Rainfall, withdrawal .through wells and below -grade construction may alter ground water flow patterns. The regional surface water flows in a southwesterly direction toward Tassajaia Creek. The ground water flow in the area is assumed to be to the southwest. The depth to ground water is not known. There is an on -site pond known as Redgewick pond located centrally on the southern portion of the property. IV. SITE HISTORY The following summarizes Eckland's review of readily available historical records, photographs, and maps gathered from government agencies, commercial enterprises and previous reports regarding the subject site history and use. The historical sources reviewed by Eckland are listed below. Interviews According to Mr. Inderbitzen, the subject site has always been vacant land and was never improved. Eckland interviewed Mr. Inderbitzen regarding soil grading activities at the subject site. Mr. Inderbitzen stated minor quarrying activity occurred at the subject site in the 1980s. Please refer to Section V, Exterior. Surface Conditions, of this Report for further discussion. Building Department Records Currently, the subject site is vacant land. There is a water tank of unknown size with a paved road located in the southeast corner of the site. According to the County of Alameda Planning Department the following address and parcel number is associated with the property: 6582 Tassajara Road; 985- 0001 -002. According to County of Alameda Building department there are no records for building structures at the subject site. See the attached Parcel Map. Aerial Photograph Review Aerial photographs are reviewed to identify past site use and areas of environmental concern on the subject site. Eckland reviewed aerial photographs of the subject site for the years 1939, 1958, 1965, 1982, and 1993. The photographs were obtained from EDR. Copies of the aerial photographs that were obtained and reviewed by Eckland are appended. The 1939, 1958, 1965, and 1982 aerial photograph shows the subject site to be grazing land. The . surrounding properties are shown to be grazing land. The 1993 aerial photograph shows the subject site to be grazing land. It appears that some surface scarring has occurred in the southwestern portion of the site. It also appears that a road leads to the surface scarred areas. The surrounding properties are shown to be grazing land. Based on Eckland's interpretation of the available aerial photographs, the past site use is shown to be grazing land. Evidence of surface scarring was identified. Eckland assumes the surface scarring is related to Quarry Permit that was issued for the site in 1983. Please refer to Section V, Exterior Surface Condition for further discussion of the surface scarring. No evidence of long- term fill activity, staining or other issue of environmental concern was identified by Eckland during the aerial photograph review. ari5 0� y � o Phase 1 Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 - 03431 -0002 Livermore, California i Page 8 Fire Insurance Map Review Beginning in the 1860s, the Sanborn Fire Insurance Company, and others, prepared maps that depict site improvements and commercial activities in many metropolitan areas in the United States. Eckland attempted to obtain fire insurance maps, specific to the site, to review as part of this Phase 1. However, none were available. .Historical Maps Historical maps and city directories provide information concerning historical site boundaries and improvements. Eckland attempted to obtain such documents to review as part of this Phase 1. However, none were available other than the USGS topographic map from 1961, which shows the subject site absent of structures. Directories City directories provide information concerning historical site ownership and use. Eckland attempted to obtain such documents to review as part of this Phase I. However, none were found. Title Record Review A title records review, or chain -of- title, can be used to identify prior ownership of a property and to evaluate previous activities or operations in terms of environmental significance. Easements, covenants, restrictions and environmental liens may be indicated in a title record. A title records review for the site was not requested by the Client. Document Review No documents or reports by others were obtained or reviewed by Eckland as part of this Phase 1. F C)It HLA0 Phase T Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003- 03431 -0002 Livermore, California Page 9 V. SITE OBSERVATIONS Fixed Facilities Review Currently, the subject site is vacant land. There is a water tank of unknown size with a paved road located in the southeast corner of the site. Site Tenant Activities During the site visit, the subject site was observed to be vacant land. According to Mr. Inderbitzen, no tenants currently occupy or utilize the subject site. On -Site Chemical and Petroleum Product Storage The subject site was vacant land at the time of Eckland's site visit and no chemicals or petroleum products were being stored or utilized. Waste Disposal Practices The subject site was vacant land at the time of Eckland's site visit and no waste was being generated. Underground and Aboveground Storage Tanks Owners and operators of certain USTs and ASTs are required to register those USTs and ASTs with the state agency responsible for administering the federally mandated UST /AST program. A search of the list of registered USTs and ASTs in California, prepared by EDP, showed that no registered USTs or ASTs are located on the subject site. Eckland interviewed Mr. Inderbitzen regarding the presence of USTs and ASTs on the subject site. Mr. Inderbitzen stated that no USTs or ASTs containing regulated or hazardous substances are located on the subject site. Eckland interviewed Ms. Leslie Litton, file clerk of the Alameda County Fire Department, regarding USTs and ASTs at the site. The fire department records indicate that there are no USTs or ASTs on -the subject site. Eckland interviewed Ms. Roseanna Garcia, file clerk with Alameda County Department of Environmental Health, regarding USTs and ASTs at the site. The Department of Environmental Health records indicate that there are no USTs or ASTs on the subject site. Eckland visually observed the subject site for surficial evidence of USTs and ASTs. Eckland did not observe any evidence of USTs or ASTs at the subject site. A search of the list of registered USTs in California, prepared by EDR, showed that no registered USTs are located on the subject site. Polychlorinated Biphenyls (PCBs) The Toxic Substances Control Act (TSCA) requires that electrical transformers be labeled to identify their PCB content.- Manufacture and distribution of PCBs was banned in 1979. Transformer owners are responsible for compliance. with all applicable regulations governing those transformers, including maintenance of the transformer and any remediation work resulting from a transformer - related incident. Eckland did not observe any electrical transformers during the site visit. Eckland recommends no further action with regard to PCB's in transformers. Exterior Surface Condition Eckland observed the exterior surface of the subject site. It is estimated that less than 1% of the subject site surface was covered by the water tower and associated paved area. Interview remarks by Mr. Inderbitzen indicated that the subject site was not previously utilized as a solid waste disposal facility. Interview remarks by Mr. Inderbitzen indicated that the subject site was previously utilized as a quarry. Mr. Inderbitzen stated Quarry Permit No. SMP -12 was issued on May 11, 1983 for quarry activities at the subject site. Mr. Inderbitzen stated a 1994 County Surface Mining Inspection Report stated that an insignificant amount of material had been mined, approximately less than 2% of its overall volume. Mr. Inderbitzen stated the mined material was aggregate. According to the county, state and federal agencies contacted by Mr. Inderbitzen, as part of coordination efforts in determining the development potential of the subject site, no historical environmental concerns were indicated. Additionally, Mr. Inderbitzen stated that the subject site has not been the location of a petroleum spill, chemical spill, fire or other environmental incident during his tenure. No pits, ponds or lagoons were observed at the subject site during the site visit. No areas of distressed or dead vegetation, fill, surface depressions or surface stains that may be attributed to chronic leaks or spills were observed during the site visit. Interior Surface Condition The subject site was vacant land at the time of Eckland's site visit. However, there is a water tank of unknown size with a paved road located in the southeast corner of the site. dqg t �Ho Phase 1 Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003- 03431 -0002 Livermore, California Page 11 VI. DATABASE RECORDS REVIEW An environmental records database search report dated July 10, 2003, was provided by EDR. A copy of EDR's report is appended. The following discussion excerpts specific items from the report that are deserving of additional description. Due to the large size of the property, EDR increased the below listed databases radius by' /4 mile. In addition to the mapped sites in the EDR report, there also may be a list of unmapped sites, known as "orphans." These are reported database sites that, due to incomplete addressing information, could not be accurately plotted by EDR. In an attempt to locate all orphan sites, Eckland compared each address provided on the orphan site list to known addresses of the site and vicinity, and attempted to locate orphan sites during reconnaissance of the vicinity. Eckland concludes that no mappable orphan sites were identified that meet the search radius criteria of the scope of work and are considered to be environmentally significant to the subject site. Comprehensive Environmental Response Compensation and Liability Information System (CERCLIS) Since 1982, the U.S. EPA has maintained lists of contaminated sites under the federal Superfund Program in accord with the Comprehensive Environmental Response, Compensation and Liability Act of 1980 ( CERCLA). The U.S. EPA discovers these sites from citizen reports, routine inspection of hazardous waste generators and treatment, storage and disposal facilities, and reporting requirements. Review of the most recent CERCLIS list identifies no CERCLA sites within the approximate minimum search distance of %z mile from the subject site. CERC -NFRAP As of February 1995, CERCLA sites designated "No Further Remedial Action Planned" (NFRAP) have been removed from CERCLIS. CERC -NFRAP sites may be where, following an initial investigation, no contamination was found, contamination was removed quickly without the need for the site to be placed on the National Priorities List (NPL), or the contamination was not serious enough to require Federal Superf ind action or NPL consideration. CERC -NFRAP sites, however, may continue to represent a concern to local or state regulators. Review of the most recent CERC -NFRAP list identifies no CERC -NFRAP sites within the approximate minimum search distance of '/2 mile from the subject site. National Priorities List The U.S. EPA maintains this list as a subset of CERCLIS, identifying over 1,200 CERCLA sites for priority cleanup under the Superfund Program. Once sites have been designated on the CERCLIS list, the U.S. EPA uses its Hazard Ranking System to determine the potential risks of those sites to human health and the environment. Only the sites that present the greatest risk are added to the NPL, which qualifies the sites to receive CERCLA remedial funding. Review of the most recent NPL list identifies no NPL sites within the approximate minimum search distance of 1 mile from the subject site. - RCRA - Generators The U.S. EPA's RCRA (Resource Conservation and Recovery Act, 42 U.S.C. §6991 et seq.) Program identifies and tracks hazardous waste from the point of generation to the point of disposal. Generators are also listed in the FINDS database. Review of the most recent RCRA - Generator facility list identifies no RCRA- Generator facilities on the subject site and no RCRA- Generator facilities on an adjoining property. RCRA - Treatment, Storage, Disposal Facilities (TSD) The Resource Conservation and Recovery Act Information System ( RCRIS) is a compilation of selective information on facilities that generate, store, transport, treat or dispose of hazardous waste. Inclusion of a facility on the RCRIS database is not necessarily an indication of an environmental problem. Review of the most recent RCRA -TSD facility list identifies no RCRA -TSD facilities within the approximate minimum search distance of 1 mile from the subject site. RCRA - Violators Three administrative systems track violations of the RCRA Act: the RCRA Administration Action Tracking System (RAATS), which contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA; the CORRACTS listing, which identifies hazardous waste handlers with RCRA corrective activity; and the RCRIS -LQG (Large - Quantity Generator) Violator List, which is reported as part of the EDR RCRA listing. Review of the most recent RAATS and RCRIS -LQG Violator lists identifies no RCRA- Violator facilities on the subject site and/or adjoining properties. Additionally; no RCRA CORRACTS facilities were identified within 1 mile of the subject site. Emergency Response Notification System (ERNS) The ERNS is a compilation of reported releases of hazardous substances into the environment. The database contains information from Spill Reports made to federal authorities, including the U.S. EPA, the U.S. Coast Guard, the National Response Center and the U.S. Department of Transportation. 3f)o Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 - 03431 -0002 Livermore, California Page 13 Review of the most recent ERNS list found no ERNS records concerning the subject site. Underground Storage Tanks Certain USTs are regulated under the RCRA ACT, and must be registered with the state agency responsible for administering the UST program. USTs are also listed in the CA FID and HIST UST database. Inclusion of a facility on the UST database is not necessarily an indication of an environmental problem. Review of the most recent UST list identifies no registered UST facility on the subject site and no registered UST facilities on adjoining properties. Leaking Underground Storage Tanks (LUSTs) Review of the most recent LUST list identifies no registered LUST facilities on the subject site and no registered LUST facilities within the approximate minimum search distance of % mile from the subject site. LUSTs are also listed in the CORTESE database. LUST facilities located greater than 1/4 mile from and cross or down gradient from the subject site are generally not considered to be environmental concerns to the subject site. Solid Waste Facilities/Landfills (SWF/LF) Solid waste records typically contain an inventory of solid waste disposal facilities or landfills in a particular state. Depending on the state, these may be active or inactive facilities or open dumps that failed to meet RCRA Section 2004 criteria for solid waste landfills or disposal sites. Review of the.most recent SWF/LF list identified no SWF /LF facilities within the approximate minimum search distance of % mile from the subject site. Cal -Sites (A WP) The AWP (Annual Work Plan) contains a listing of all verified hazardous waste sites that are or will be targeted for abatement by the California Environmental Protection -Agency (CAL -EPA) under the Hazardous Substance Cleanup Bond Act of 1984 (California Health and Safety Code Section 25356) and the Hazardous Substances Account (HSA). Hazardous waste sites may be discovered by the CAL -EPA directly or be referred to the CAL - EPA for confirmation and follow -up action by another government agency, such as a local health department, a California Regional Water Quality Control Board (RWQCB), a responsible party or a concerned citizen. New sites are added to this database as they are verified and the "Preliminary Assessment, Site Investigation and Hazard Ranking System" processes are completed. Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 14 Review of the latest Cal -Sites AWP listing identifies no AWP sites within the approximate minimum search distance of 1 mile from the subject site. Cal -Sites (ASPIS) Developed under section 25359.6 of the California Health and Safety Code, the CAL -EPA Department of Toxic Substances Control (DTSC) maintains a listing of potential and known hazardous waste sites, under the Department of Toxic Substances Control Program (TSCP). The RWQCB's, Department of Fish and Game and other state environmental regulatory agencies' TSCP staffs also review historical land -use data sources to generate lists of potentially contaminated sites. Cal -Sites (ASPIS) combines the former ASPIS (Abandoned Sites Program Information System) and BEP (Bond Expenditure Plan -or State Superfund List) hazardous waste site databases. Information concerning most of these sites should be considered preliminary; most confirmed sites from this database are merged into the AWP database once they have been hazard ranked. This database currently contains more than 26,000 sites in the State of California. Many of these sites are currently identified as requiring no further action (NFA) based on a TSCP determination that no release had occurred, or, if a release may have occurred, it did not represent a significant threat to the public or the environment. Review of the latest ASPIS listing identifies no ASPIS sites within the approximate minimum search distance of 1 mile from the subject site. California Hazardous Material Incident Reporting System (CI- MIRS) The California Office of Emergency Services database contains reported information on incidents involving accidental releases or spills of hazardous materials. Review of the latest CHMIRS listing indicates that the subject site is not identified. Hazardous Waste and Substances Sites List (CORTESE) The Cal -EPA publishes a listing of potential and confirmed hazardous waste sites throughout the State of California. Under California Government Code Section 65962.5, these sites are submitted to the Cal -EPA by the State Department of Health Services, State Water Resources Control Board, the Integrated Waste Management Board and the Department of Toxic Substances Control. The database identifies public drinking water wells with detectable levels of contamination, hazardous substance sites selected for remedial action, sites with known toxic material identified through the abandoned site assessment program, sites with USTs having a reportable release, and all solid waste disposal facilities from which there is a known migration. Review of the latest listing of CORTESE sites identifies no CORTESE sites within the approximate minimum search distance of /Z mile from the subject site. Notl 65 California's Proposition 65 requires that notifications be made to the California Water Resources Control Board about any release that could have an adverse impact on drinking water and thereby expose the public to a potential health risk. Review of the latest Notify 65 list identifies no Notify 65 sites within the approximate minimum search distance of 1 mile from the subject site. TOXIC Pits The Toxic Pits database identifies sites that are suspected of containing hazardous substances where cleanup has not been completed. The information is supplied by the California Water Resources Control Board. Review of the latest Toxic Pits list identifies no Toxic Pits sites within the approximate minimum search distance of 1 mile from the subject site. Waste Management Unit Database System (WMUDS /SWAT) The California Integrated Waste Management Board Maintains an inventory list of both open as well as closed and inactive solid waste disposal facilities and transfer stations in accordance with the Solid Waste Management and Resource Recovery Act of 1972, California Government Code Section 2.66790(b). Generally, the California Integrated Waste Management Board learns of locations of disposal facilities through permit applications and from local enforcement agencies. The Waste Management Unit Database System is used by the California Water Resources Control Board and the Regional Water Quality Control Boards for program tracking and inventory of waste management units. Review of the latest WMUDS /SWAT listing identifies no WMUDS /SWAT facilities within the approximate minimum search distance of %Z mile from the subject site. Hazardous Waste Information System (HAZNEn The California Department of Health Services, Toxic Substances Control Division, has developed and maintained lists of hazardous waste generators and hazardous waste treatment, storage and disposal facilities in the State of California, in accordance with the Hazardous Waste Control Law (California Health and Safety Code Section 25100 et seq.) and the Hazardous Waste Management Act of 1976 (California Health and Safety Code Section 25179.1 et seq.). Inclusion of a facility in the HAZNET list is not necessarily an indication of an environmental problem. Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 16 Additionally, the California Health and Safety Code requires all counties to prepare and submit hazardous waste management plans. To assist the counties, the Toxic Substances Control Division maintains lists containing hazardous waste generation and disposal data within each county. This information has been assembled by the Toxic Substances Control Division from manifest reports required from hazardous waste generators. This database currently lists over 20,000 facilities in the State of California. Review of the latest HAZNET listing identifies no HAZNET facilities on the subject site or adjoining properties. Manufactured Gas Plants Manufactured Gas Plants produced combustible gas for urban use prior to the widespread use and pipeline distribution of natural gas in the 1950s. The main fuels used in production of this gas were coke, coal and oil; the by- products of this manufacturing process include a variety of tars, sludge and other chemicals. MGP sites tend to have subsurface contamination due to the common practice of disposing of the waste products on site. The EDR report identified no MGP sites within the approximate minimum search distance of 1 mile from the subject site. Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 17 VII, ASTIVI NON -SCOPE ITEMS Asbestos The subject site was vacant land at the time of Eckland's site visit. However, there is an aboveground water tank of unknown size with a paved road located in the southeast corner of the site. During the site visit, Eckland observed reasonably accessible exterior areas for building materials and debris that may be suspect asbestos- containing materials (ACM); the observed building materials (the aboveground water storage tank) were not suspected of containing ACM. Lead Based Paint The subject site was vacant land at the time of Eckland's site visit. However, there is an aboveground water tank of unknown size with a paved road located in the southeast corner of the site. During the site visit, Eckland observed reasonably accessible areas of the site for building materials and debris that may be covered with suspect lead -based paint (LBP); the observed building materials (the aboveground water storage tank) were not suspected of containing LBP. Lead in Drinking Water The subject site was vacant land at the time of Eckland's site visit. However, there is an aboveground water tank of unknown size with a paved road located in the southeast corner of the site. The water in the tank supplies water to the residential development to the south of the subject site. No water is currently being provided to the subject site. Radon Gas Radon gas is a naturally occurring, colorless, odorless gas that is the by- product of the decay of radioactive materials found within bedrock and soil. Radon gas enters buildings. through cracks, structural joints, and plumbing openings in floor levels that are in direct contact with the soil. Radon gas, when inhaled, has been found to be carcinogenic in some humans. The U.S. EPA - recommended action level for radon gas is 4.0 pCi/L (picoCuries per liter). The- State of California, in conjunction with the U.S. EPA, has conducted residential screening tests in Alameda County. Radon information for Alameda County, supplied by EDR, indicates an average basement radon level in ZIP code 94550 of 0.567 pCi/L, with 100% of tests less than 4.0 pCi/L. Based on U.S. EPA screening, Alameda County is within radon zone 2, according to the U.S. EPA. Counties within radon zone 2 have a predicted average indoor radon gas screening level of between 2.0 and 4.0 pCi/L. Although the literature reviewed indicates a statistical occurrence of radon gas, considering that the property is nonresidential and no basements are present, it is our opinion that the risk of radon gas accumulation is not a significant environmental concern at the subject site. (+ H LA Phase 1 Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 19 Wetlands Eckland observed pockets of ponded water, flowing water, saturated soils or hydrophytic vegetation at the subject site. However; wetlands are beyond the scope of the Phase I Environmental Site Assessment Report. The subject site was vacant land at the time of Eckland's site visit. However, there is a water tank of unknown size with a paved road located in the southeast corner of the site. During the site visit, Eckland observed reasonably accessible areas of the site for building materials and debris that may be covered with mold; no mold was observed at the subject site. 30 c� Phase I Environmental Site Assessment July 17, 2003 Redgewick Property Comm. No. 2003 -03431 -0002 Livermore, California Page 19 VIII. CONCLUSIONS AND RECOMMENDATIONS Historical Recognized Environmental Conditions (HRECs Based on site observations, interviews and review of available documents and the database records search, Eckland concludes that no HRECs were identified at the subject site. Eckland recommends no additional investigation at this time. Current Recognized Environmental Conditions (RECs) Based on site observations, interviews and review of available documents and the database records search, Eckland concludes that no RECs were identified at the subject site. Eckland recommends no additional investigation at this time. Phase I Environmental Site Assessment Redgewick Property Livermore, California IX. INTERVIEWS Name Title/Affiliation Mr. Martin Inderbitzen Attorney at Law Ms. Leslie Litton File Clerk Alameda County Fire Department Ms. Roseanna Garcia File Clerk Alameda County Department of Environmental Health July 17, 2003 Comm. No. 2003- 03431 -0002 Page 20 Phone (925) 485 -1060 (510) 670 -5853 (510) 567 -6780 phase I Environmental Site Assessment Comm. No. 2003 -03431 -0002 Redgewick Property Livermore, California page 1 1. View of the subject site from the western side of the property looking to the northeast. 2. View of the subject from the western side of the property looking east/southeast. 3. View of the subject from the western side of the property looking southeast. 4. View of the subject from the western side of the property looking southeast. 7. View of the subject from the western side of the property looking south. The EDR Radius Map with GeoCheck® Project: 2003- 03431 -0002 Redgewick Property East Side of Tassajara Rd Livermore, CA 94550 Inquiry Number: 11010443.3p July 10, 2003 3ia Q�y�o ®: Environmental Data Resources, Inc. The Source For Environmental Risk Management Data 3530 Post Road Southport, Connecticut 06890 Nationwide Customer Service Telephone: 1 -800- 352 -0050 Fax: 1- 800 -231 -6802 Internet: www.edrnet.com TABLE OF CONTENTS SECTION 313 PAGE Executive Summary __ ______ _________ ______ __ ___ _____ - -- ESi ----------------- DetailMap -------------------------------------------------------------- 2 Map Findings Summary ____ ____________ _ _ _ ___ -__. 3 ------------------- - - - - -- MapFindings---------------------------------------------------- - - - - -- 5 EDR Proprietary Historical Map Findings---------- ------ -------- -------- - - -- -. 6 Orphan Summary ------------------------------------------------- - - - - -- 7 Government RecordsSearched/ DataCurrencyTracking --- ------- ----- ----- ------ GR -1 GEOCHECK ADDENDUM Physical Setting Source Addendum------------------- ---------- ------ - - - - -- A -1 Physical Setting Source Summary ------------------------------------------- A -2 Physical Setting Source Map------------- - - - - -: ------------------- - - - - -- A -7 Physical Setting Source Map Findings-------------------- ---- -- ----- -- -- -- -- A -8 Physical Setting Source Records Searched----- ----- -- -- ------ ----- --- -- - - - - -. A -10 Thank you for your business. Please contact EDR at 1- 800 - 352 -0050 with any questions or comments. Disclaimer 1 Copyright and Trademark Notice This report contains information obtained from a variety of public and other sources. NO WARRANTY EXPRESSED OR IMPLIED, iS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL DATA RESOURCES INC. SPECIFICALLY DISCLAIMS THE MAKING OFANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. iN NO EVENT SHALL EDR BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE, ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OR DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES. Entire contents copyright 2003 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole or in part, of any report or map of Environmental Data Resources, inc., or its affiliates, is prohibited without prior written permission. EDR and the edr logos are trademarks of Environmental Data Resources, Inc. or its affiliates. All other trademarks used herein are the property of their respective owners. TC11010443.3p Pagel 311 �-�lyo EXECUTIVE SUMMARY A search of available environmental records was conducted by Environmental Data Resources, Inc. (EDR). The report meets the government records search requirements of ASTM Standard Practice for Environmental Site Assessments, E 1527 -00. Search distances are per ASTM standard or custom distances requested by the user. TARGET PROPERTY INFORMATION ADDRESS EAST SIDE OF TASSAJARA RD LIVERMORE, CA 94550 COORDINATES Latitude (North): Longitude (West): Universal Tranver UTM X (Meters): UTM Y (Meters): Elevation: 37.734640 - 37'44'4.7" 121.861450 - 121- 51' 41.2" 3e Mercator: Zone 10 600324.9 4176778.5 598 ft. above sea level USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY Target Property. 2437121 -F7 LIVERMORE, CA Source: ' USGS 7.5 min quad index TARGET PROPERTY SEARCH RESULTS The target property was not listed in any of the databases searched by EDR. DATABASES WITH NO MAPPED SITES No mapped sites were found in EDR's search of available ( "reasonably ascertainable ") government records either on the target property or within the ASTM E 1527 -00 search radius around the target property for the following databases: FEDERAL ASTM STANDARD NPL------ ------------ - - - - -- National Priority List Proposed NPL--- ----- -- - - -. Proposed National Priority List Sites CERCLIS--- -- --------- - - - - -- Comprehensive Environmental Response, Compensation, and Liability Information System CERC- NFRAP---- -- --- - - - - -- CERCLIS No Further Remedial Action Planned CORRACTS ----------------- Corrective Action Report RCRIS- TSD- ----- ------ - - - - -- Resource Conservation and Recovery Information System RCRIS- LQG----------- - - - - -- Resource Conservation and Recovery Information System RCRIS-SQG----------------- Resource Conservation and Recovery Information System ERNS- -------- --------- - - ---- Emergency Response Notification System STATE ASTM STANDARD AWP ------------------------- Annual Workplan Sites TC11010443.3p EXECUTIVE SUMMARY 1 315 �f- y�o EXECUTIVE SUMMARY Cal-Sites -------------------- Caisites Database CHMIRS_____________________ California Hazardous Material Incident Report System _ ___________________. "Cortese" Hazardous Waste & Substances Sites List Cortese ------------------------ Cortese" Notify 65 --------------------- Proposition 65 Records Toxic Pits___________________ Toxic Pits Cleanup Act Sites SWF/LF ---------------------- Solid Waste Information System WMUDSISWAT______________ Waste Management Unit Database LUST_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Leaking Underground Storage Tank Information System CA BOND EXP. PLAN______ Bond Expenditure Plan UST_________________________ List of Underground Storage Tank Facilities VCP_________________________ Voluntary Cleanup Program Properties INDIAN UST_________________ Underground Storage Tanks on Indian Land CAFID UST_________________ Facility Inventory Database HIST UST____________________ Hazardous Substance Storage Container Database FEDERAL ASTM SUPPLEMENTAL CONSENT___________________ Superfund (CERCLA) Consent Decrees ROD_________________________ Records Of Decision Delisted NPL.--------------- National Priority List Deletions FINDS_______________________ Facility Index System/Facility Identification Initiative Program Summary Report HMIRS_______________________ Hazardous Materials Information Reporting System MLTS________________________ Material Licensing Tracking System MINES______________________ _ Mines Master Index File NPL Liens___________________ Federal Superfund Liens PADS________________________ PCB Activity Database System DOD_________________________ Department of Defense Sites RAATS______________________ RCRA Administrative Action Tracking System TRIS------------------------- Toxic Chemical Release Inventory System TSCA_______________________ Toxic Substances Control Act SSTS________________________ Section 7 Tracking Systems FTTS________________________ FI FRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) STATE OR LOCAL ASTM SUPPLEMENTAL AST_________________________ Aboveground Petroleum Storage Tank Facilities CLEANERS ------------------ Cleaner Facilities CA WDS_____________________ Waste Discharge System DEED ------------------------ List of Deed Restrictions SCH ------------------------- School Property Evaluation Program REF_________________________ Unconfirmed Properties Referred to Another Agency NFA_________________________ No Further Action Determination NFE____ ____________________ Properties Needing Further Evaluation CA SLIC_____________________ Spills, Leaks, Investigation & Cleanup Cost Recovery Listing HAZNET_____________________ Hazardous Waste Information System BROWNFIELDS DATABASES vCP ------------------ _------ Voluntary Cleanup Program Properties EDR PROPRIETARY HISTORICAL DATABASES See the EDR Proprietary Historical Database Section for details TC11010443.3p EXECUTIVE SUMMARY 2 EXECUTIVE SUM-MARY SURROUNDING SITES: SEARCH RESULTS Surrounding sites were not identified. Unmappabie (orphan) sites are not considered in the foregoing analysis. EDR PROPRIETARY HISTORICAL DATABASES See the EDR Proprietary Historical Database Section for details TC11010443.3p EXECUTIVE SUMMARY 3 EXECUTIVE SUMMARY Due to poor or inadequate address information, the following sites were not mapped: Site Name PG &E GAS PLANT LIVERMORE CALIFORNIA WATER SERV WELL #10 -01 DEL VALLE RESERVOIR DS MARCIEL RANCH LANDSPREADING DITCH +CULVERT PROPERTY OWNER ?;'n of LAO() Database(s) CERC -NFRAP CERC -NFRAP SWFILF SWFILF ERNS TC11010443.3p EXECUTIVE SUMMARY 4 MAP FINDINGS SUMMARY STATE ASTM STANDARD AWP Search Cal -Sites 1.250 CHMIRS 0.500 Cortese 0.750 Target Distance Toxic Pits 1.250 State Landfill 0.750 WMUDS /SWAT Total Database Property (Miles) < 118 1/8-1/4 1/4-1/2 1/2-1 > 1 Plotted FEDERAL ASTM STANDARD TP CA FID UST 0.500 HIST UST TP FEDERAL ASTM SUPPLEMENTAL 0 NPL 1,250 0 0 0 0 0 0 Proposed NPL TP NR NR NR NR NR 0 CERCLIS 0.750 0 0 0 0 NR 0 CERC -NFRAP 0.750 0 0 0 0 NR 0 CORRACTS 1.250 0 0 0 0 0 0 RCRIS -TSD 1.250 0 0 0 0 0 0 RCRIS Lg. Quan. Gen. 0.500 0 0 0 NR NR 0 RCRIS Sm. Quan. Gen. 0.500 0 0 0 NR NR 0 ERNS 0.500 0 0 0 NR NR 0 STATE ASTM STANDARD AWP 1.250 Cal -Sites 1.250 CHMIRS 0.500 Cortese 0.750 Notify 65 1.250 Toxic Pits 1.250 State Landfill 0.750 WMUDS /SWAT 0.750 LUST 0.750 CA Bond Exp. Plan 1.250 UST 0.500 VCP 0.750 INDIAN UST TP CA FID UST 0.500 HIST UST TP FEDERAL ASTM SUPPLEMENTAL 0 CONSENT 1.250 ROD 1.250 Delisted NPL 1.250 FINDS 0.500 HMIRS 0.500 MLTS 0.500 MINES TP NPL Liens 1.250 PADS 0.500 DOD TP RAATS 0 -500 TRIS 0,500 TSCA 0.500 SSTS TP FTTS TP STATE OR LOCAL ASTM SUPPLEMENTAL NR AST. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 NR NR 0 0 0 0 0 NR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 NR 0 0 0 0 0 NR 0 0 0 0 0 NR 0 0 0 0 0 0 0 0 0 0 NR NR 0 0 0 0 0 NR 0 NR NR NR NR NR 0 0 0 0 NR NR 0 NR NR NR NR NR 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 NR NR 0 0 0 0 NR NR 0 0 0 0 NR NR 0 NR NR NR NR NR 0 0 0 0 0 0 0 0 0 0 NR NR D NR NR NR NR NR 0 0 0 0 NR NR 0 0 0 0 NR NR 0 0 0 0 NR NR 0 NR NR NR NR NR 0 NR NR NR NR NR 0 TP NR NR NR NR NR 0 TC11010443.3p Page 3 Of p DETAIL MAP - 11010443.3p - Eckland Consultants, Inc. �F 9 �y a w igs S SSpEEt O w q0 s f ��q O I S1 u 9 ' A h r i I s t Target Property A Sites at elevations higher than or equal to the target property • Sites at elevations lower than the target property J Coal Gasification Sites Historical Gas Stations I Historical Dry Cleaners See the EDR Proprietary Historical Map Findings r Sensitive Receptors National Priority list Sites Landfill Sites Dept. Defense Sites 0 1B 114 irs .suns County Boundary Areas of Concern Oil & Gas pipelines ® 100 -year flood zone © 500-year flood zone Federal Wetlands TARGET PROPERTY: Redgewick Property CUSTOMER: Eckland Consultants, Inc. ADDRESS: East Side of Tassajara Rd CONTACT: Tim Casey CITYISTATE2IP: Livermore CA 94550 INQUIRY #: 11010443.3p LATILONG: 37.7346 1 121.8615 DATE: July 10, 2003 7:43 pm l:;W ht o 2003 EDR, I= 0 2003 6DT. Ix R.I. 0712002 AN Rights R...rv.d. Sao °� Hilo DETAIL MAP - 11O1O443.3p - Eckland Consultants, Inc. C9 �Ly r= OSTPE� 2P �a 9 N , 9 X99 �O i i 9 t I � N a _ °dr n �A VA iR Lilo W Target Property A Sites at elevations higher than or equal to the target property County Boundary Areas of Concern • Sites at elevations lower than age Oil & Gas pipelines Tim Casey the target property � 10o -year flood zone 1 Coal Gasification Sites © 5otl -year flood zone ,j Historical Gas Stations! Historical Dry Cleaners DATE: See the EDR Proprietary Historical Map Findings Federal Wetlands X Sensitive Receptors Copyright 0 2003 EDK Inc, O 2003 GOT, Inc. Rd GUAM AS flights Reamed. National Priority List Sites Landfill Sites Dept. Defense Sites TARGET PROPERTY: Redgewick Property CUSTOMER: Eckland Consuftants, Inc. ADDRESS: East Side of Tassajara Rd CONTACT: Tim Casey CITY /STATEIZIP: Livermore CA 94550 INQUIRY #: 11010443.3p LAT/LONG: 37.73461121.8615 DATE: Jufy 10, 2003 7:43 pm Copyright 0 2003 EDK Inc, O 2003 GOT, Inc. Rd GUAM AS flights Reamed. C- —.6 -z DETAIL MAP - 11010443.3p - Eckland Consultants, Inc. o. O O Im 114 12 Miles Target Property Sites at elevations higher than or equal to the target property • Sites at elevations lower than the target property ■ Coal Gasification Sites Historical Gas Stations I Historical Dry Cleaners See the EDR Proprietary Historical Map Findings -C Sensitive Receptors Naflonal Priority List Sites Landfill Sites Dept. Defense Sites 6 ------------ County Boundary RM Areas of Concern Oil & Gas pipelines F7/] 100-year flood zone 500-year flood zone Federal Wetlands TARGET PROPERTY: Redgevvick Property CUSTOMER: EcIdand Consultants, Inc, ADDRESS: East Side of Tassajara Rd CONTACT: Tim Casey CITY/STATEfZJP: Livermore CA 94550 INQUIRY #: 11010443.3p LAT/LONG: 37.7346 /121.8615 DATE: July 10, 2003 7:43 pm Copyright C- 2003 EDR. tat 0 2003 GOL Inc. Rai. 07MIZ All Rights Reserved. Gas Statlons/Dry Cleaners 0.250 0 0 Coal Gas 1.250 0 0 BROWNFIELDS DATABASES VCP 0.750 0 0 NOTES: See the EDR Proprietary Historical Database Section for details TP = Target Property NR = Not Requested at this Search Distance Sites may be listed in more than one database NR Search NR 0 Target . Distance Database Property (Miles) CLEANERS TP CA WDS 0.500 DEED TP SCH TP REF TP NFA TP NFE TP CA SLIC 0.750 HAZNET 0.500 EDR PROPRIETARY HISTORICAL DATABASES Gas Statlons/Dry Cleaners 0.250 0 0 Coal Gas 1.250 0 0 BROWNFIELDS DATABASES VCP 0.750 0 0 NOTES: See the EDR Proprietary Historical Database Section for details TP = Target Property NR = Not Requested at this Search Distance Sites may be listed in more than one database NR NR NR 0 0 0 Total < 118 1/8-114 1/4-1/2 112-1 > 1 Plotted NR NR NR NR NR 0 0 0 0 NR NR 0 NR NR NR NR NR 0 NR NR NR NR NR 0 NR NR NR NR NR 0 NR NR NR NR NR 0 Nq NR NR NR NR 0 0 0 0 0 NR 0 0 0 0 NR NR 0 Gas Statlons/Dry Cleaners 0.250 0 0 Coal Gas 1.250 0 0 BROWNFIELDS DATABASES VCP 0.750 0 0 NOTES: See the EDR Proprietary Historical Database Section for details TP = Target Property NR = Not Requested at this Search Distance Sites may be listed in more than one database NR NR NR 0 0 0 0 0 0 0 NR 0 TC11010443.3p Page 4 323 +��lo Map ID MAP FINDINGS Direction Distance Distance (ft.) EDR ID Number Elevation Site Database(s) EPA ID Number `.I�11��Iir��;�I�1►I�7 TC11010443.3p Page 5 f WI a W w W 1- N O d N F- U U) N w n Q w a z w w } w v T c � O m O O. e) O m G. 3 � N m m y 0 � O m CL t Q U 0 .. m N N O R z c t. � u c ro O V? •- v N m W C d m U ma � � o ° a a z t � m U = � � O m d W ~ 10 N s d ym o h C1 m i0 �E � � o O ° N U N o = c L_ w 3 rn m IL CL m V 0 d U t- QaQ a w K }n Z LL LL 2 a U Vl U rL 0 U (D W N U U] d N N' � m a a a � N O E `s v W U Cc, vrn Q O J W Q Z o O a r z�O w >L nz 0v �Ocn LL Lu Z¢ 0>'.0 w o= c F U N Q ❑ , Q w w Z # ul O n w 2 o a > w a p W rn ='wag w Z . U Q g w w Z a a > g rn w : z CQ'J U �I j a0 S J H J a w o U 7 N m m O m CO 'o m P M O 1• n N m N m OD m N m 0 0 'O N 0 O O In O O W W w W W K 0� w G� a 0 0 0 0 0 T- ix a K of �z »> J J J J J c ca a a. m vi v v 0 0 U N GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING To maintain currency of the following federal and state databases, EDR contacts the appropriate governmental agency on a monthly or quarterly basis, as required. Elapsed ASTM days: Provides confirmation that this EDR report meets or exceeds the 90-day updating requirement of the ASTM standard. FEDERAL ASTM STANDARD RECORDS NPL: National Priority List Source: EPA Telephone: N/A National Priorities List (Superfund). The NPL is a subset of CERCLIS and identifies over 1,200 sites for priority cleanup under the Superfund Program. NPL sites may encompass relatively large areas. As such, EDR provides polygon coverage for over 1,000 NPL site boundaries produced by EPA's Environmental Photographic Interpretation Center (EPIC) and regional EPA offices. Date of Govemment Version: 04/30/03 Date of Data Arrival at EDR: 05/05103. Date Made Active at EDR: 06/02/03 Elapsed ASTM days: 28 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 05/09/03 NPL Site Boundaries Sources: EPA's Environmental Photographic Interpretation Center (EPIC) Telephone: 202 -564 -7333 EPA Region 1 Telephone 617 -918 -1143 EPA Region 3 Telephone 215 - 814 -5418 EPA Region 4 Telephone 404 -562 -8033 Proposed NPL: Proposed National Priority List Sites Source: EPA Telephone: N/A Date of Government Version: 04/30/03 Date Made Active at EDR: 06/02/03 Database. Release Frequency: Semi - Annually EPA Region 6 Telephone: 214 - 655 -6669 EPA Region 8 Telephone: 303 - 312 -6774 Date of Data Arrival at EDR: 05/05/03 Elapsed ASTM days: 28 Date of Last EDR Contact: 05105/03 CERCLIS: Comprehensive Environmental Response, Compensation, and Liability Information System Source: EPA Telephone: 703 -413 -M3 CERCLIS contains data on potentially hazardous waste sites that have been reported to the USEPA by states, municipalities, private companies and private persons, pursuant to Section 103 of the Comprehensive Environmental Response, Compensation, and Liability Act ( CERCLA). CERCLIS contains sites which are either proposed to or on the National Priorities List (NPL) and sites which are in the screening and assessment phase for possible inclusion on the NPL Date of Government Version: 03/19103 Date of Data Arrival at EDR: 03/24103 Dale Made Active at EDR: 04/08/03 Elapsed ASTM days: 15 Database Release Frequency: Quarterly Date of Lest EDR Contact: 06/23/03 CERCLIS- NFRAP: CERCLIS No Further Remedial Action Planned Source: EPA Telephone: 703- 413 -0223 As of February 1995, CERCLIS sites designated "No Further Remedial Action Planned" ( NFRAP) have been removed from CERCLIS. NFRAP sites maybe sites where, following an initial investigation, no contamination was found, contamination was removed quickly without the need for the site to be placed on the NPL, or the contamination was not serious enough to require Federal Superfund action or NPL consideration. EPA has removed approximately 25,000 NFRAP sites to lift the unintended barriers to the redevelopment of these properties and has archived them as historical records so EPA does not needlessly repeat the investigations in the future. This policy change is part of the EPA's Brownfields Redevelopment Program to help cities, states, private investors and affected citizens to promote economic redevelopment of unproductive urban sites. TC11010443.3p Page GR -1 3a-1 Of �110 GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 03/19/03 Date Made Active at EDR: 04108/03 Database Release Frequency: Quarterly Date of Data Arrival at EDR: 03!24103 Elapsed ASTM days: 15 Date of Last EDR Contact: 06/23103 CORRACTS: Corrective Action Report Source: EPA Telephone: 800 - 424 -9346 CORRACTS identifies hazardous waste handlers with RCRA corrective action activity. Date of Government Version: 03/31103 Date Made Active at EDR: 05108/03 Database Release Frequency: Semi - Annually Date of Data Arrival at EDR: 04/07/03 Elapsed ASTM days: 31 Date of Last EDR Contact: 06109/03 RCRIS: Resource Conservation and. Recovery Infomrafion System Source: EPAINTIS Telephone: 800424 -9346 Resource Conservation and Recovery Information System. RCRIS includes selective information on sites which generate, transport, store, treat and/or dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Date of Government Version: 05109/03 Date of Data Arrival at EDR: 05/09103 Date Made Active at EDR: 07/01/03 Elapsed ASTM days: 53 Database Release Frequency: Varies Date of Last EDR Contact: 06/26/03 ERNS: Emergency Response Notification System Source: National Response Center, United States Coast Guard Telephone: 202 - 260 -2342 Emergency Response Notification System. ERNS records and stores information on reported releases of oil and hazardous substances. Date of Government Version: 12/31/02 Date of Data Arrival at EDR: 01127/03 Date Made Active at EDR: 02!03/03 Elapsed ASTM days: 7 Database Release Frequency: Annually Date of Last EDR Contact: 04/28103 FEDERAL ASTM SUPPLEMENTAL RECORDS SRS: Biennial Reporting System Source: EPA/NTIS Telephone: 800 -424 -9346 The Biennial Reporting System is a national system administered by the EPA that collects data on the generation and management of hazardous waste. BRS captures detailed data from two groups: Large Quantity Generators (LQG) and Treatment, Storage, and Disposal Facilities. Date of Govemment Version: 12/31/99 Database Release Frequency: Biennially Date of Last EDR Contact: 06/16/03 Date of Next Scheduled EDR Contact: 09/15/03 CONSENT: Superfund (CERCLA) Consent Decrees Source: EPA Regional Offices Telephone: Varies Major legal settlements that establish responsibility and standards for cleanup at NPL (Superfund) sites. Released periodically by United States District Courts after settlement by parties to litigation matters. Date of Government Version: N/A Database Release Frequency: Varies Date of Last EDR Contact: N/A Date of Next Scheduled EDR Contact: N/A ROD: Records Of Decision Source: EPA Telephone: 703 - 416 -0223 Record of Decision. ROD documents mandate a permanent remedy at an NPL (Superfund) site containing technical and health information to aid in the cleanup. TC11010443.3p Page GR -2 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRA CKING Date of Government Version: 01/09/03 Database Release Frequency: Annually Date of Last EDR Contact: 04/07103 Date of Next Scheduled EDR Contact: 07/07/03 DELISTED NPL: National Priority List Deletions Source: EPA Telephone: NIA The National Oil and Hazardous Substances Pollution Contingency Plan (NCP) establishes the criteria that the EPA uses to delete sites from the NPL. In accordance with 40 CFR 300.425.(e), sitbs may be deleted from the NPL where no further response is appropriate. Date of Government Version: 04/30/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 05105103 Date of Next Scheduled EDR Contact: 08/04/03 FINDS: Facility Index System/Facitity Identification initiative Program Summary Report Source: EPA Telephone: NIA Facility Index System. FINDS contains both facility information and 'pointers' to other sources that contain more detail. EDR includes the following FINDS databases in this report: PCS (Permit Compliance System), AIRS (Aerometdc Information Retrieval System), DOCKET (Enforcement Docket used to manage and track information on civil judicial enforcement cases for all environmental statutes), FURS (Federal Underground Injection Control), GDOCKET (Criminal Docket System used to track criminal enforcement actions for all environmental statutes), FFIS (Federal Facilities information System), STATE (State Environmental Laws and Statutes), and PADS (PCB Activity Data System). Date of Government Version: 03/19/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 04 /07/03 Date of Next Scheduled EDR Contact: 07107/03 HMIRS: Hazardous Materials Information Reporting System Source: U.S. Department of Transportation Telephone: 202-366-4555 Hazardous Materials Incident Report System. HMIRS contains hazardous material spill incidents reported to DOT. Date of Government Version: 01/31/03 Database Release Frequency: Annually Date of Last EDR Contact: 04/30/03 Date of Next Scheduled EDR Contact: 07/21103 MLTS: Material Licensing Tracking System Source: Nuclear Regulatory Commission Telephone: 301 -415 -7169 MLTS is maintained by the Nuclear Regulatory Commission and contains a list of approximately 8,100 sites which possess or use radioactive materials and which are subject to NRC licensing requirements. To maintain currency, EDR contacts the Agency on a quarterly basis. Date of Government Version: 04/23/03 Database Release Frequency: Quarterly MINES: Mines Master Index File Source: Department of Labor, Mine Safety and Health Administration Telephone: 303 - 231 -5959 Date of Government Version: 03/11/03 Database Release Frequency: Semi- Annually Date of Last EDR Contact: 04 /07/03 Date of Next Scheduled EDR Contact: 07107/03 Date of Last EDR Contact: 03131103 Date of Next Scheduled EDR Contact: 06/30/03 NPL LIENS: Federal Superfund Liens Source: EPA Telephone: 205 - 564 -4267 Federal Superfund Liens. Under the authority granted the USEPA by the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) of 1980, the USEPA has the authority to file liens against real property in order to recover remedial action expenditures or when the property owner receives notification of potential liability. USEPA compiles a listing of filed notices of Superfund Liens. TC11010443.3p Page GR -3 3 a 0� qLIo GOVER'N�IIIENT RECORDS SEARCHED / DATA CURRENCY TRACKING Date of Government Version: 10/15191 Database Release Frequency: No Update Planned Date of Last EDR Contact: 05/27103 Date of Next Scheduled EDR Contact: 08125/03 PADS: PCB Activity Database System Source: EPA Telephone: 202 -564 -3887 PCB Activity Database. PADS Identifies generators, transporters, commercial storers andlor brokers and disposers of PCB's who are required to notify the EPA of such activities. Date of Government Version: 03/26/03 Database Release Frequency: Annually Date of Last EDR Contact: 05112103 Date of Next Scheduled EDR Contact: 08/11/03 DOD: Department of Defense Sites Source: USGS Telephone: 703 -648 -5920 This data set consists of federally owned or administered lands, administered by the Department of Defense, that have any area equal to or greater than 640 acres of the United States, Puerto Rico, and the U.S. Virgin islands. Date of Government Version: 04/01/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 05/12/03 Date of Next Scheduled EDR Contact: 08/11103 RAATS: RCRA Administrative Action Tracking System Source: EPA Telephone: 202 - 564 -4104 RCRA Administration Action Tracking System. RAATS contains records based on enforcement actions issued under RCRA pertaining to major violators and includes administrative and civil actions brought by the EPA, For administration actions after September 30, 1995, data entry in the RAATS database was discontinued. EPA will retain a copy of the database for historical records. It was necessary to terminate RAATS because a decrease in agency resources made it impossible to continue to update the information contained in the database, Date of Government Version: 04/17/95 Database Release Frequency: No Update Planned Date of Last EDR Contact: 06/09/03 Date of Next Scheduled EDR Contact: 09/08103 TRIS: Toxic Chemical Release Inventory System Source: EPA Telephone: 202 - 260 -1531 Toxic Release Inventory System- TRIS identifies facilities which release toxic chemicals to the air, water and land In reportable quantities under SARA Tittle III Section 313. Date of Government Version: 12/31100 Database Release Frequency: Annually Date of Last EDR Contact: 06/27103 Date of Next Scheduled EDR Contact: 09/22103 TSCA: Toxic Substances Control Act Source: EPA Telephone: 202 - 260 -5521 Toxic Substances Control Act. TSCA identities manufacturers and importers of chemical substances included on the TSCA Chemical Substance Inventory list. It includes data on the production volume of these substances by plant site. Date of Government Version: 12/31/98 Database Release Frequency: Every 4 Years Date of Last EDR Contact: 06f09/03 Date of Next Scheduled EDR Contact: 09/08/03 FITS INSP: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)1TSCA (Toxic Substances Control Act) Source: EPA Telephone: 202 -564 -2501 Date of Government Version: 04/15/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 06123/03 Date of Next Scheduled EDR Contact: 09/22103 TC11010443.3p Page GR-4 330 GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING SSTS: Section 7 Tracking Systems Source: EPA Telephone: 202 - 564 -5008 Section 7 of the Federal Insecticide, Fungicide and Rodenticide Act, as amended (92 Stat. 829) requires all registered pesticide- producing establishments to submit a report to the Environmental Protection Agency by March 1 st each year. Each establishment must report the types and amounts of pesticides, active ingredients and devices being produced, and those having been produced and sold or distributed in the past year. Date of Government Version: 12!31100 Database Release Frequency: Annually Date of Last EDR Contact: 05/09/03 Date of Next Scheduled EDR Contact:- 07/21/03 FITS: FIFRA/ TSCA Tracking System - FIFRA (Federal Insecticide, Fungicide, & Rodenticide Act)/TSCA (Toxic Substances Control Act) Source: EPA/Office of Prevention, Pesticides and Toxic Substances Telephone: 202- 564 -2501 FTTS tracks administrative cases and pesticide enforcement actions and compliance activities related to FIFRA, TSCA and EPCRA (Emergency Planning and Community Right -to -Know Act). To maintain currency, EDR contacts the Agency on a quarterly basis. Date of Government Version: 04/15/03 Database Release Frequency: Quarterly STATE OF CALIFORNIA ASTM STANDARD RECORDS Date of Last EDR Contact: 06/23/03 Date of Next Scheduled EDR Contact: 09122/03 AWP: Annual Workplan Sites Source: California Environmental Protection Agency Telephone: 916- 323 -3400 Known Hazardous Waste Sites. California DTSC's Annual Workplan (AWP), formerly BEP, Identifies known hazardous substance sites targeted for cleanup. Date of Government Version: 03131/03 Date Made Active at EDR: 04/25/03 Database Release Frequency: Annually Date of Data Arrival at EDR: 04/07/03 Elapsed ASTM days: 18 Date of Last EDR Contact: 04/07103 CAL-SITES: Calsites Database Source: Department of Toxic Substance Control Telephone: 916- 323 -3400 The Calsites database contains potential or confirmed hazardous substance release properties. In 1996, California EPA reevaluated and significantly reduced the number of sites in the Calsites database. Date of Government Version: 04/28/03 Date Made Active at EDR: 06123/03 Database Release Frequency: Quarterly Date of Data Arrival at EDR: 06/02/03 Elapsed ASTM days: 21 Date of Last EDR Contact; 06/02/03 CHMIRS: California Hazardous Material Incident Report System Source: office of Emergency Services Telephone: 916 - 845 -8400 California Hazardous Material Incident Reporting System. CHMIRS contains information on reported hazardous material incidents (accidental releases or spills). Date of Government Version: 12/31/01 Date Made Active at EDR: 01/15103 Database Release Frequency: Varies Date of Data Arrival at EDR: 12102/02 Elapsed ASTM days: 44 Date of Last EDR Contact: 05/27/03 CORTESE: "Cortese" Hazardous Waste & Substances Sites List Source: CAL EPA/Office of Emergency Information Telephone: 916- 323 -9100 The sites for the list are designated by the State Water Resource Control Board (LUST), the Integrated Waste Board (SWF /LS), and the Department of Toxic Substances Control (Cal--Sites). TC11010443.3p Page GR -5 GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 04/01/01 Date Made Active at EDR: 07/26/01 Database Release Frequency: No Update Planned Date of Data Arrival at EDR: 05/29/01 Elapsed ASTM days: 58 Date of Last EDR Contact: 04/29/03 NOTIFY 65: Proposition 65 Records Source: State Water Resources Control Board Telephone: 916 -445 -3846 Proposition 65 Notification Records. NOTIFY 65 contains facility notifications about any release which could impact drinking water and thereby expose the public to a potential health risk. Date of Government Version: 10121193 Date Made Active at EDR: 11/19/93 Database Release Frequency: No Update Planned Date of Data Arrival at EDR: 11/01/93 Elapsed ASTM days: 18 Date of Last EDR Contact: 04/21/03 TOXIC PITS: Toxic Pits Cleanup Act Sites Source: State Water Resources Control Board Telephone: 916- 227.4364 Toxic PITS Cleanup Act Sites. TOXIC PITS identifies sites suspected of containing hazardous substances where cleanup has not yet been completed. Date of Government Version: 07/01/95 Date Made Active at EDR: 09/26/95 Database Release Frequency. No Update Planned Date of Data Arrival at EDR: 08!30195 Elapsed ASTM days: 27 Date of Last EDR Contact: 05105/03 SWFILF (SWIS): Solid Waste Information System Source: Integrated Waste Management Board Telephone: 916- 341 -6320 Active, Closed and Inactive Landfills. SWFILF records typically contain an inve ntory of solid waste disposal facilities or landfills. These may be active or I nactive facilities or open dumps that failed to meet RCRA Section 4004 criteria for solid waste landfills or disposal sites. Date of Goverment Version: 06/13/03 Date Made Active at EDR: 07/07/03 Database Release Frequency: Quarterly Date of Data Arrival at EDR: 06/16/03 Elapsed ASTM days: 21 Date of Last EDR Contact: 06/16/03 WMUDSISWAT: Waste Management Unit Database Source: State Water Resources Control Board Telephone: 916 - 227 -4448 Waste Management Unit Database System. WMUDS is used by the State Water Resources Control Board staff and the Regional Water Quality Control Boards for program tracking and inventory of waste management units. WMUDS is composed of the following databases: Facility Information, Scheduled Inspections Information, Waste Management Unit Information, SWAT Program Information, SWAT Report Summary Information, SWAT Report Summary Data, Chapter 15 (formerly Subchapter 15) Information, Chapter 15 Monitoring Parameters, TPCA Program Information, RCRA Program Information, Closure Information, and Interested Parties Information. Date of Goverment Version: 04/01/00 Date Made Active at EDR: 05/10 /00 Database Release Frequency: Quarterly Date of Data Arrival at EDR: 04/10/00 Elapsed ASTM days: 30 Date of Last EDR Contact: 06/17/03 LUST: - Leaking Underground Storage Tank information System Source: State Water Resources Control Board Telephone: 916 - 341 -5740 Leaking Underground Storage Tank Incident Reports. LUST records contain an inventory of reported leaking underground . storage tank incidents. Not all states maintain these records, and the information stored varies by state. Date of Goverment Version: 04/02/03 Date Made Active at EDR: 04/25/03 Database Release Frequency: Quarterly Date of Data Arrival at EDR: 04/16/03 Elapsed ASTM days: 9 Date of Last EDR Contact: 04 /16/03 TC11010443.3p Page GR -6 33a + GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING CA BOND EXP. PLAN: Bond Expenditure Plan Source: Department of Health Services Telephone: 916- 255 -2118' Department of Health Services developed a site - specific expenditure plan as the basis for an appropriation of Hazardous Substance Cleanup Bond Act funds. It is not updated. Date of Government Version: 01/01/89 Date Made Active at EDR: 08/02/94 Database Release Frequency: No Update Planned CA UST: UST: Active UST Facilities Source: SWRCB Telephone: 916 - 341 -5700 Active UST facilities gathered from the local regulatory agencies Date of Government Version: 04/02/03 Date Made Active at EDR: 04/30/03 Database Release Frequency: Semi - Annually Date of Data Arrival at EDR: 07127/94 Elapsed ASTM days: 6 Date of Last EDR Contact: 05/31/94 Date of Data Arrival at EDR: 04116/03 Elapsed ASTM days: 14 Date of Last EDR Contact: 04 /16/03 VCP: Voluntary Cleanup Program Properties Source: Department of Toxic Substances Control Telephone: 916- 323 -3400 Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and /or cleanup activities and have agreed to provide coverage for DTSC's costs. Date of Government Version: 04/28/03 Date Made Active at EDR: 06112/03 Database Release Frequency: Quarterly INDIAN UST: Underground Storage Tanks on Indian Land Source: EPA Region 9 Telephone: 415- 972 -3368 Date of Government Version: N/A Date Made Active at EDR: N/A Database Release Frequency: Varies Date of Data Arrival at EDR: 06102103 Elapsed ASTM days: 10 Date of Last EDR Contact: 06/02/03 Date of Data Arrival at EDR: N/A Elapsed ASTM days: 0 Date of Last EDR Contact: N/A CA FID UST: Facility Inventory Database Source: California Environmental Protection Agency Telephone: 916 - 445 -6532 The Facility Inventory Database (FID) contains a historical listing of active and inactive underground storage tank locations from the State Water Resource Control Board. Refer to locallcounty source for current data. Date of Government Version: 10/31/94 Date Made Active at EDR: 09129/95 Database Release Frequency: No Update Planned Date of Data Arrival at EDR: 09/05/95 Elapsed ASTM days: 24 Date of Last EDR Contact: 1228196 HIST UST: Hazardous Substance Storage Container Database Source: State Water Resources Control Board Telephone: 916 -341 -5700 The Hazardous Substance Storage Container Database is a historical listing of UST sites. Refer to locaticounty source for current data. Date of Government Version: 10/15/90 Date Made Active at EDR: 02/12/91 Database Release Frequency: No Update Planned Date of Data Arrival at EDR: 01/25191 Elapsed ASTM days: 18 Date of Last EDR Contact: 0726101 TC11010443.3p Page GR -7 GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING STATE OF CALIFORNIA ASTM SUPPLEMENTAL RECORDS AST: Aboveground Petroleum Storage Tank Facilities Source: State Water Resources Control Board Telephone: 916 -341 -5712 Registered Aboveground Storage Tanks. Date of Government Version: 05/01103 Database Release Frequency: Quarterly Date of Last EDR Contact: 05 /05/03 Date of Next Scheduled EDR Contact: OB104 /03 CLEANERS: Cleaner Facilities Source: Department of Toxic Substance Control Telephone: 916 -225 -0873 A list of drycleaner related facilities that have EPA ID numbers. These are facilities with certain SIC codes: power laundries, family and commercial; garment pressing and cleaner's agents; linen supply; coin- operated laundries and cleaning; drycleaning plants, except rugs; carpet and upholster cleaning; industrial launderers; laundry and garment services. Date of Government Version: 03/11/03 Database Release Frequency: Annually CA WDS: Waste Discharge System Source: State Water Resources Control Board Telephone: 916- 657 -1571 Sites which have been issued waste discharge requirements. Date of Government Version: 06/23/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 04/07/03 Date of Next Scheduled EDR Contact: 07/07/03 Date of Last EDR Contact: 06/23/03 Date of Next Scheduled EDR Contact: 09/22/03 DEED: List of Deed Restrictions Source: Department of Toxic Substances Control Telephone: 916 -323 -3400 The use of recorded land use restrictions is one of the methods the DTSC uses to protect the public from unsafe exposures to hazardous substances and wastes. Date of Government Version: 04/04/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 04/07/03 Date of Next Scheduled EDR Contact: 07107/03 NFA: No Further Action Determination Source: Department of Toxic Substances Control Telephone: 916- 323 -3400 This category contains properties at which DTSC has made a clear determination that the property does not pose a problem to the environment or to public health. Date of Government Version: 04128/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 06/02103 Date of Next Scheduled EDR Contact: 09101/03 REF: Unconfirmed Properties Referred to Another Agency Source: Department of Toxic Substances Control Telephone: 916- 323 -3400 This category contains properties where contamination has not been confirmed and which were determined as not requiring direct DTSC Site Mitigation Program action or oversight. Accordingly, these sites have been referred to another state or local regulatory agency. Date of Government Version: 04/28103 Database Release Frequency: Quarterly Date of Last EDR Contact: 06/02/03 Date of Next Scheduled EDR Contact: D9/01103 SCH: School Property Evaluation Program Source: Department of Toxic Substances Control Telephone: 916 - 323 -3400 This category contains proposed and existing school sites that are being evaluated by DTSC for possible hazardous materials contamination. In some cases, these properties may be listed In the CalSites category depending on the level of threat to public health and safety or the environment they pose. TC11010443.3p Page GR-8 331 J-+10 GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 64/28103 Database Release Frequency: Quarterly Date of Last EDR Contact: 06102/03 Date of Next Scheduled EDR Contact: 09/01/03 NFE: Properties Needing Further Evaluation Source: Department of Toxic Substances Control Telephone: 916 - 323 -3400 This category contains properties that are suspected of being contaminated. These are unconfirmed contaminated properties that need to be assessed using the PEA process. PEA in Progress indicates properties where DTSC is currently conducting a PEA. PEA Required indicates properties where DTSC has determined a PEA is required, but not currently underway. Date of Government Version: 04/28/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 06!02!03 Date of Next Scheduled EDR Contact: 09/01/03 HAZNEf: Hazardous Waste Information System Source: California Environmental Protection Agency Telephone: 916 -255 -1136 Facility and Manifest Data. The data is extracted from the copies of hazardous waste manifests received each year by the DTSC. The annual volume of manifests is typically 700,000 - 1,000,000 annually, representing approximately 350,000 - 500,000 shipments. Data are from the manifests submitted without correction, and therefore many contain some invalid values for data elements such as generator ID, TSD ID, waste category, and disposal method. Date of Government Version: 12/31/01 Database Release Frequency: Annually LOCAL RECORDS ALAMEDA COUNTY: Local Oversight Program Listing of UGT Cleanup Sites Source: Alameda County Environmental Health Services Telephone: 510- 567 -6700 Date of Government Version: 12102/02 Database Release Frequency: Semi - Annually Underground Tanks Source: Alameda County Environmental Health Services Telephone: 510- 567 -6700 Date of Government Version: 11/26/02 Database Release Frequency: Semi - Annually CONTRA COSTA COUNTY: Date of last EDR Contact: 05/27/03 Date of Next Scheduled EDR Contact: 08/11/03 Date of Last EDR Contact: 05112/03 Date of Next Scheduled EDR Contact: 07/26103 Date of Last EDR Contact: 05/12/03 Date of Next Scheduled EDR Contact: 07128/03 Site List Source: Contra Costa Health Services Department Telephone: 925 - 646 -2286 List includes sites from the underground tank, hazardous waste generator and business pian/2185 programs. Date of Government Version: 06/16/03 Database Release Frequency: Semi - Annually FRESNO COUNTY: Date of Last EDR Contact: 06105/03 Date of Next Scheduled EDR Contact: 09/01/03 CUPA Resources List Source: Dept. of Community Health Telephone: 559 -445 -3271 Certified Unified Program Agency. CUPA's are responsible for implementing a unified hazardous materials and hazardous waste management regulatory program. The agency provides oversight of businesses that deal with hazardous materials, operate underground storage tanks or aboveground storage tanks. TC11010443.3p Page GR -9 335 t y�D GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING Date of Government Version: 03/28/03 Database Release Frequency- Semi- Annually KERN COUNTY: Underground Storage Tank Sites & Tank Listing Source: Kern County Environment Health Services Department Telephone: 661- 862 -8700 Kem County Sites and Tanks Listing. Date of Government Version: 03/25/03 Database Release Frequency: Quarterly LOS ANGELES COUNTY: List of Solid Waste Facilities Source: La County Department of Public Works Telephone: 818 -458 -5185 Date of Government Version: 12/01/02 Database Release Frequency: Varies City of El Segundo Underground Storage Tank Source: City of El Segundo Fire Department Telephone: 310 -607 -2239 Date of Government Version: 03/01103 Database Release Frequency: Semi - Annually City of Long Beach Underground Storage Tank Source: City of Long Beach Fire Department Telephone: 562- 570 -2543 Date of Government Version: 05/30/02 Database Release Frequency: Annually City of Torrance Underground Storage Tank Source: City of Torrance Fire Department Telephone: 310-61 B -2973 Date of Government Version: 02/25103 Database Release Frequency: Semi - Annually City of Los Angeles Landfills Source: Engineering & Construction Division Telephone: 213- 473 -7669 Date of Government Version: 03/01/02 Database Release Frequency: Varies HMS: Street Number List Source: Department of Public Works Telephone: 626 -458 -3517 Industrial Waste and Underground Storage Tank Sites. Date of Government Version: 02/27/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 03128/03 Date of Next Scheduled EDR Contact: 08/11103 Date of Last EDR Contact: 06/09/03 Date of Next Scheduled EDR Contact: 09/08/03 Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08/18103 Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08/18/03 Date of Last EDR Contact: 05/27/03 Date of Next Scheduled EDR Contact: 08/25/03 Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08118/03 Date of Last EDR Contact: 06/16/03 Date of Next Scheduled EDR Contact: 09/15/03 Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08118!03 TC11010443.3p Page GR -10 33t� �f -yqo GOVERNMENT RECORDS SEARCHED / DATA CURRENCY TRACKING Site Mitigation List Source: Community Health Services Telephone: 323 -890 -7806 Industrial sites that have had some sort of spill or complaint Date of Government Version: 01!07/03 Database Release Frequency: Annually Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08/18/03 San Gabriel Valley Areas of Concern Source: EPA Region 9 Telephone: 415- 972 -3178 San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office. Date of Government Version: 12/31/98 Date of Last EDR Contact: 07106/99 Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: N/A MARIN COUNTY: Underground Storage Tank Sites Source: Public Works Department Waste Management Telephone: 415- 499-6647 Currently permitted USTs in Marin County. Date of Government Version: 03104/03 Database Release Frequency: Semi - Annually NAPA COUNTY: Sites With Reported Contamination Source: Napa County Department of Environmentai Management Telephone: 707 - 253 -4269 Date of Government Version: 03/31/03 Database Release Frequency: Semi - Annually Closed and Operating Underground Storage Tank Sites Source: Napa County Department of Environmental Management Telephones 707 - 253 -4269 Date of Government Version: 03/31/03 Database Release Frequency: Annually ORANGE COUNTY: List of Underground Storage Tank Cleanups Source: Health Care Agency Telephone: 714 - 834 -3446 Orange County Underground Storage Tank Cleanups (LUST). Date of Government Version: 11/04/02 Database Release Frequency: Quarterly List of Underground Storage Tank Facilities Source: Health Care Agency Telephone: 714 - 834 -3445 Orange County Underground Storage Tank Facilities (UST). Date of Last EDR Contact: 05/05/03 Date of Next Scheduled EDR Contact: 08/04/03 Date of Last EDR Contact: 03131/03 Date of Next Scheduled EDR Contact: 06/30/03 Date of Last EDR Contact: 03/31/03 Date of Next Scheduled EDR Contact: 06 /30/03 Date of Last EDR Contact: 06/11103 Date of Next Scheduled EDR Contact: 09/08/03 TC11010443.3p Page GRA 1 Site Mitigation List Source: Community Health Services Telephone: 323 - 890 -7806 Industrial sites that have had some sort of spill or complaint. Date of Government Version: 01/07/03 Database Release Frequency: Annually Date of Last EDR Contact: 05119/03 Date of Next Scheduled EDR Contact: 08118/03 San Gabriel Valley Areas of Concern Source: EPA Region 9 Telephone: 415- 972 -3178 San Gabriel Valley areas where VOC contamination is at or above the MCL as designated by region 9 EPA office. Date of Government Version: 12/31/98 Date of Last EDR Contact: 07/06/99 Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: NIA MARIN COUNTY: Underground Storage Tank Sites Source: Public Works Department Waste Management Telephone: 415- 499 -6647 Currently permitted USTs in Marin County. Date of Government Version: 03/04/03 Database Release Frequency: Semi - Annually NAPA COUNTY: Sites With Reported Contamination Source: Napa County Department of Environmental Management Telephone: 707 - 253 -4259 Date of Government Version: 03/31/03 Database Release Frequency: Semi - Annually Closed and Operating Underground Storage Tank Sites Source: Napa County Department of Environmental Management Telephone: 707- 253 -4269 Date of Government Version: 03/31/03 Database Release Frequency: Annually ORANGE COUNTY: List of Underground Storage Tank Cleanups Source: Health Care Agency. Telephone: 714- 634 -3446 Orange County Underground Storage Tank Cleanups (LUST). Date of Government Version: 11/04/02 Database Release Frequency: Quarterly List of Underground Storage Tank Facilities Source: Health Care Agency Telephone: 714- 8343446 Orange County Underground Storage Tank Facilities (UST). Date of Last EDR Contact: 05/05/03 Date of Next Scheduled EDR Contact: 08/04/03 Date of Last EDR Contact: 03131/03 Date of Next Scheduled EDR Contact: 06/30/03 Date of Last EDR Contact: 03/31/03 Date of Next Scheduled EDR Contact: 06/30103 Date of Last EDR Contact: 06/11/03 Date of Next Scheduled EDR Contact: 09/08/03 TC 11010443.3p Page GR -11 GOVERNMENT RECORDS SEARCH-ED / DATA CURRENCY TRACKING Date of Government Version: 11/27/01 Date of Last EDR Contact: 06/11/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/08/03 List of industrial Site Cleanups Source: Health Care Agency Telephone: 714 -834 -3446 Petroleum and non- petroleum spills. Date of Last EDR Contact: 04121/03 Date of Government Version: 10/24/00 Date of Last EDR Contact: 06111/03 Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 09/08/03 PLACER COUNTY: Master List of Facilities Source: Placer County Health and Human Services Telephone: 530 -889 -7312 List includes aboveground tanks, underground tanks and cleanup sites. Date of Government Version: 02/03/03 Date of Last EDR Contact: 06/23/03 Database Release Frequency. Semi - Annually Date of Next Scheduled EDR Contact: 09/22/03 RIVERSIDE COUNTY: Listing of Underground Tank Cleanup Sites Source: Department of Public Health Telephone: 909 -358 -5055 Riverside County Underground Storage Tank Cleanup Sites (LUST). Date of Government Version: 06/03/03 Date of Last EDR Contact: 04121/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 07/21103 Underground Storage Tank Tank List Source: Health Services Agency Telephone: 909 - 358 -5055 Date of Government Version: 05/30/03 Date of Last EDR Contact: 04/21/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 07/21/03 SACRAMENTO COUNTY: CS - Contaminated Sites Source: Sacramento County Environmental Management Telephone: 916 -875 -8406 Date of Government Version: 04/02/03 Date of Last EDR Contact: 05/05/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 08104!03 ML - Regutatory Compliance Master List Source: Sacramento County Environmental Management Telephone: 916 - 875 -8406 Any business that has hazardous materials on site - hazardous material storage sites, underground storage tanks, waste generators. Date of Government Version: 04103103 Date of Last EDR Contact: 05/05/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 08/04103 TC11010443.3p Page GR -12 339 Ct 1��lo GOVERNMENT RECORDS SEARCHED f DATA CURRENCY TRACKING SAN BERNARDINO COUNTY: Hazardous Material Permits Source: San Bernardino County Fire Department Hazardous Materials Division Telephone: 909 - 387 -3041 This listing includes underground storage tanks, medical waste handlersfgenerators, hazardous materials handlers, hazardous waste generators, and waste oil generators/handlers. Date of Government Version: 04/01/03 Date of Last EDR Contact: 06/09103 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/08103 SAN DIEGO COUNTY: Solid Waste Facilities Source: Department of Health Services Telephone: 619 -338 -2209 San Diego County Solid Waste Facilities. Date of Government Version: 08/01/00 Database Release Frequency: Varies Date of Last EDR Contact 05/27103 Date of Next Scheduled EDR Contact: 08/25/03 Hazardous Materials Management Division Database Source: Hazardous Materials Management Division Telephone: 619 - 338 -2268 The database includes: HE58 - This report contains the business name, site address, business phone number, establishment 'H' permit number, type of permit, and the business status, HE17 - In addition to providing the same information provided in the HE58 listing, HE17 provides inspection dates, violations received by the establishment, hazardous waste generated, the quantity, method of storage, treatment/disposal of waste and the hauler, and information on underground storage tanks. Unauthorized Release List - Includes a summary of environmental contamination cases in San Diego County (underground tank cases, non -tank cases, groundwater contamination, and soil contamination are included.) Date of Government Version: 03131/02 Date of Last EDR Contact: 04116/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 07/07/03 SAN FRANCISCO COUNTY: Local Oversite Facilities Source: Department Of Public Health San Francisco County Telephone: 415- 252 -3920 Date of Government Version: 06/20/03 Database Release Frequency: Quarterly Underground Storage Tank Information Source: Department of Public Health Telephone: 415 -252 -3920 Date of Government Version: 03/17/03 Database Release Frequency: Quarterly SAN MATEO COUNTY: Fuel Leak List Source: San Mateo County Environmental Health Services Division Telephone: 650 -363 -1921 Date of Last EDR Contact: 06/09/03 Date of Next Scheduled EDR Contact: 09/08/03 Date of Last EDR Contact: 06/09/03 Date of Next Scheduled EDR Contact: 09/08/03 TC 11010443.3p Page GR -13 310 D{" �� o GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 03/13/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 04/28/03 Date of Next Scheduled EDR Contact: 07/28/03 Business Inventory Source: San Mateo County Environmental Health Services Division Telephone: 650 -363 -1921 _ List includes Hazardous Materials Business Plan, hazardous waste generators, and underground storage tanks. Date of Government Version: 06/16/03 Date of Last EDR Contact: 05/07/03 Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 07/14103 SANTA CLARA COUNTY: Fuel Leak Site Activity Report Source: Santa Clara Valley Water District Telephone: 408 - 265 -2600 Date of Government Version: 01108103 Date of Last EDR Contact: 03131/03 Database Release Frequency: Semi - Annually Date of Next Scheduled EDR Contact: 06/30/03 Hazardous Material Facilities Source: City of San Jose Fire Department Telephone: 408- 277AG59 Date of Government Version: 12111/02 Date of Last EDR Contact: 06/09/03 Database Release Frequency: Annually Dale of Next Scheduled EDR Contact: 09/08/03 SOLANO COUNTY: Leaking Underground Storage Tanks Source: Solano County Department of Environmental Management Telephone: 7071121 -6770 Date of Government Version: 12/20/02 Date of Last EDR Contact: 06/16/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/15/03 Underground Storage Tanks Source: Solano County Department of Environmental Management Telephone: 707 - 421 -6770 Date of Government Version: 12/18/02 Date of Last EDR Contact: 06/16/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/15103 SONOMA COUNTY: Leaking Underground Storage Tank Sites Source: Department of Health Services Telephone: 707 - 565 -6565 Date of Government Version: 04/28/03 Date of Last EDR Contact: 04/28/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 0728/03 SUTTER COUNTY: Underground Storage Tanks Source: Sutter County Department of Agriculture Telephone: 530 - 822 -7500 TC11010443.3p Page GR -14 3�I ofyHo GOVERNMENT RECORDS SEARCHED l DATA CURRENCY TRACKING Date of Government Version: 07/01101 Database Release Frequency: Semi- Annually Date of Last EDR Contact: 04/07/03 Date of Next Scheduled EDR Contact: 07/07/03 VENTURA COUNTY: Inventory of Illegal Abandoned and Inactive Sites Source: Environmental Health Division Telephone: 805 -654 -2813 Ventura County Inventory of Closed, Illegal Abandoned, and Inactive Sites. Date of Government Version: 09/01/02 Date of Last EDR Contact: 05 /27/03 Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 08125103 Listing of Underground Tank Cleanup Sites . Source: Environmental Health Division Telephone: 805 -654 -2813 Ventura County Underground Storage Tank Cleanup Sites (LUST). Date of Government Version: 03/10/03 Date of Last EDR Contact: 06/15/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 08 /15/03 Underground Tank Closed Sites List Source: Environmental Health Division Telephone: 805 -654 -2813 Ventura County Operating Underground Storage Tank Sites (UST)/Underground Tank Closed Sites List. Date of Government Version: 12130102 Date of Last EDR Contact: 04115103 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 07114103 Business Plan, Hazardous Waste Producers, and Operating Underground Tanks Source: Ventura County Environmental Health Division Telephone: 805 -654 -2813 The BWT list indicates by site address whether the Environmental Health Division has Business Plan (B), Waste Producer (W), and /or Underground Tank (T) information. Date of Government Version: 02111/03 Date of Last EDR Contact: 06/16/03 Database Release Frequency: Quarterly Date of Next Scheduled EDR Contact: 09115t03 YOLO COUNTY: Underground Storage Tank Comprehensive Facility Report Source: Yolo County Department of Health Telephone: 530 - 666 -6646 Date of Government Version: 10/28/02 Date of Last EDR Contact: 04121/03 Database Release Frequency: Annually Date of Next Scheduled EDR Contact: 07/21/03 California Regional Water Quality Control Board (RWQCB) LUST Records LUST REG 1: Active Toxic Site Investigation source: California Regional Water Quality Control Board North Coast (1) Telephone: 707- 576 -2220 Del Norte, Humboldt, Lake, Mendocino, Modoc, Siskiyou, Sonoma, Trinity counties. For more current information, please refer to the State Water Resources Control Board's LUST database. Date of Government Version: 02101101 Date of Last EDR Contact: 05/27/03 Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact: 08/25/03 TC11010443.3p Page GR -15 GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING LUST REG 2: Fuel Leak List Source: California Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510 -286 -0457 Date of Government Version: 03 /28/03 Database Release Frequency: Quarterly LUST REG 3: Leaking Underground Storage Tank Database Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805 -549 -3147 Date of Government Version: 05/19/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 04/15/03 Date of Next Scheduled EDR Contact: 07114/03 Date of Last EDR Contact: 05/19103 Date of Next Scheduled EDR Contact: 08/18/03 LUST REG 4: Underground Storage Tank Leak List Source: California Regional Water Quality Control Board Los Angeles Region (4) Telephone: 213- 266 -6600 Los Angeles, Ventura counties. For more current information, please refer to the State Water Resources Control Board's LUST database. Date of Government Version: OB /09101 Database Release Frequency: No Update Planned LUST REG 5: Leaking Underground Storage Tank Database Source: California Regional Water Quality Control Board Central Valley Region (5) Telephone: 916 -255 -3125 . Date of Government Version: 04/01/03 Database Release Frequency. Quarterly Date of Last EDR Contact 03/31/03 Date of Next Scheduled EDR Contact: 06/30103 Date of Last EDR Contact: 04/08/03 Date of Next Scheduled EDR Contact: 07/07/03 LUST REG 6L: Leaking Underground Storage Tank Case Listing Source: California Regional Water Quality Control Board Lahontan Region (6) Telephone: 916 -542 -5424 For more current information, please refer to the State Water Resources Control Board's LUST database. Date of Government Version: 06/09/03 Date of Last EDR Contact: 04107/03 Database Release Frequency: No Update Planned Date of Next Scheduled EDR Contact 07/07103 LUST REG 6V: Leaking Underground Storage Tank Case Listing Source: California Regional Water Quality Control Board Victorville Branch Office (6) Telephone: 760- 346 -7491 Date of Government Version: 05/29/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 05/14/03 Date of Next Scheduled EDR Contact: 07/07/03 LUST REG 7: Leaking Underground Storage Tank Case Listing Source: California Regional Water Quality Control Board Colorado River Basin Region (7) Telephone: 760 - 346 -7491 Date of Government Version: 07/02/02 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 03/31/03 Date of Next Scheduled EDR Contact: 06/30/03 LUST REG 8: Leaking Underground Storage Tanks Source: California Regional Water Quality Control Board Santa Ana Region (8) Telephone: 909 -782 -4498 California Regional Water Quality Control Board Santa Ana Region (8). For more current information, please refer to the State Water Resources Control Board's LUST database. Date of Government Version: 06/11/03 Database Release Frequency: No Update Planned Date of Last EDR Contact. 05112103 Date of Next Scheduled EDR Contact: 08/11103 TC11010443.3p Page GR -16 N3 H � 0 GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING LUST REG 9: Leaking Underground Storage Tank Report Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858467 -2980 Orange, Riverside, San Diego counties. For more current information, please refer to the State Water Resources Control Board's LUST database. Date of Government Version: 03/01/01 Database Release, Frequency: No Update Planned Date of Last EDR Contact: 04 /21/03 Date of Next Scheduled EDR Contact: 07/21103 California Regional Water Quality Control Board (RWQCB) SLIC Records SLIC REG 1: Active Toxic Site Investigations Source: California Regional Water Quality Control Board, North Coast Region (1) Telephone: 707 -576 -2220 Date of Government Version: 04 /03/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 05127/03 Date of Next Scheduled EDR Contact: 08/25/03 SLIC REG 2: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: Regional Water Quality Control Board San Francisco Bay Region (2) Telephone: 510 -2815 -0457 Any contaminated site that impacts groundwater or has the potential to impact groundwater. Date of Government Version: 03/28/03 Database Release Frequency: Quarterly Date of last EDR Contact: 04/15/03 Date of Next Scheduled EDR Contact: 07/14103 SLIC REG 3: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: California Regional Water Quality Control Board Central Coast Region (3) Telephone: 805 - 549 -3147 Any contaminated site that impacts groundwater or has the potential to impact groundwater. Date of Government Version: 05/19/03 Database Release Frequency: Semi - Annually Date of Last EDR Contact: 05/19/03 Date of Next Scheduled EDR Contact: 08/18103 SLIC REG 4: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: Region Water Quality Control Board Los Angeles Region (4) Telephone: 213 -576 -6600 Any contaminated site that impacts groundwater or has the potential to impact groundwater. Date of Government Version: 04/01/03 Database Release Frequency: Quarterly Date of Last EDR Contact: 04/28/03 Date of Next Scheduled EDR Contact: 07/28/03 SLIC REG 5: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: Regional Water Quality Control Board Central Valley Region (5) Telephone: 916 - 855 -3075 Unregulated sites that impact groundwater or have the potential to impact groundwater. Date of Government Version: 03/01/03 Database Release Frequency: Semi - Annually SLIC REG 6L: SLIC Sites Source: California Regional Water Quality Control Board, Lahontan Region Telephone: 530- 542 -5574 Date of Government Version: 06/09/03 Database Release Frequency: Varies SLIC REG 6V: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: Regional Water Quality Control Board, Victorville Branch Telephone: 619- 241 -6583 Date of Last EDR Contact: 04/08103 Date of Next Scheduled EDR Contact: 07/07/03 Date of Last EDR Contact: 06/09/03 Date of Next Scheduled EDR Contact: 09/08103 TC11010443.3p Page GR -17 �Lj t ALA;) GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 07/19/01 Database Release Frequency: SemFAnnually SLIC REG 7: SLIC List Source: California Regional Quality Control Board, Colorado River Basin Region Telephone: 760 - 346 -7491 Date of Government Version: 05/29/03 Database Release Frequency. Varies SLIC. REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: California Region Water Quality Control Board Santa Ana Region (8) Telephone: 909- 782 -3298 Date of Government Version: 04/01/03 Database Release Frequency: Semi - Annually SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 858 -467 -2980 Date of Government Version: 03103/03 Database Release Frequency: Annually EDR PROPRIETARY HISTORICAL DATABASES Date of Last EDR Contact: 04/08103 Date of Next Scheduled EDR Contact: 07107103 Date of Last EDR Contact: 05/27/03 Date of Next Scheduled EDR Contact 08/25/03 Date of Last EDR Contact: 04121103 Date of Next Scheduled EDR Contact: 07/07/03 Date of Last EDR Contact: 06 /02/03 Date of Next Scheduled EDR Contact: 09/01/03 EDR Historical Gas Station and Dry Cleaners: EDR has searched select national collections of business directories and has collected listings of potential dry cleaner and gas stationtfilling station/service station sites that were available to EDR researchers. EDR's review was limited to those categories of sources that might, In EDI ;'s opinion, include dry cleaning and gas statibn/frliing stationlservice station establishments. The categories reviewed Included, but were not limited to: gas, gas station, gasoline station, idling station, auto, automobile repair, auto service station, service station, dry cleaner, cleaners, laundry, laundromat, cleaning/laundry, wash & dry, etc. This information is meant to assist and complement environmental professionals in their conduct of environmental site assessments, and is not meant to be a substitute for a full historical investigation as defined in ASTM Ell 527. The information provided in this proprietary database may or may not be complete; i.e., the absence of a dry cleaner or gas station/filling station /service station site does not necessarily mean that such a site did not exist in the area covered by this- report. (A note on dry cleaning "sites: it is not possible for EDR to differentiate between establishments that use PERC on -site as a cleaning solvent and sites that function simply as drop -off and pick -up locations or that are traditional wet cleaningflaundry facilities. Therefore, it is essential for environmental professionals to incorporate professional judgment in the evaluation of each site.) Former Manufactured Gas (Coal Gas) Sites: The existence and location of Coal Gas sites is provided exclusively to EDR by Real Property Scan, Inc. ®Copyright 1993 Real Property Scan, Inc. For a technical description of the types of hazards which may be found at such sites, contact your EDR customer service representative. Disclaimer Provided by Real Property Scan, Inc. The information contained in this report has predominantly been obtained from publicly available sources produced by entities other than Real Property Scan. While reasonable steps have been taken to insure the accuracy of this report, Real Property Scan does not guarantee the accuracy of this report. Any liability on the part of Real Property Scan is strictly limited to a refund of the amount paid. No claim is made for the actual existence of toxins at any site. This report does not constitute a legal opinion. TC11010443.3p Page GR -18 315 � �ILIo GOVERNMENT RECORDS SEARCHED 1 DATA CURRENCY TRACKING Date of Government Version: 07/19/01 Database Release Frequency: Semi - Annually SLIC REG 7: SLIC List Source: California Regional Quality Control Board, Colorado River Basin Region Telephone: 760- 346 -7491 Date of Government Version: 05/29/03 Database Release Frequency: Varies SLIC REG 8: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: California Region Water Quality Control Board Santa Ana Region (8) Telephone: 909- 782 -3298 Date of Government Version: 04/01/03 Database Release Frequency: Semi- Annually SLIC REG 9: Spills, Leaks, Investigation & Cleanup Cost Recovery Listing Source: California Regional Water Quality Control Board San Diego Region (9) Telephone: 85B -467 -2980 Date of Government Version: 03/03/03 Database Release Frequency: Annually EDR PROPRIETARY HISTORICAL DATABASES Date of Last EDR Contact: 04/08/03 Date of Next Scheduled EDR Contact: 07/07/03 Date of Last ERR Contact: 05/27/03 Date of Next Scheduled EDR Contact: 08/25/03 Date of Last EDR Contact: 04/21/03 Date of Next Scheduled EDR Contact: 07/07/03 Date of Last EDR Contact: 06/02/03 Date of Next Scheduled EDR Contact: 09/01103 EDR Historical Gas Station and Dry Cleaners: EDR has searched select national collections of business directories and has collected listings of potential dry cleaner and gas station/filling statiordservice station sites that were available to EDR researchers. EDR's review was limited to those categories of sources that might, in EDR's opinion, include dry leaning and gas station filling station /service station establishments. The categories reviewed included, but were not limited to: gas, gas station, gasoline station, filling station, auto, automobile repair, auto service station, service station, dry cleaner, cleaners, laundry, laundromat cleaning/laundry, wash & dry, etc. This information is meant to assist and complement environmental professionals in their conduct of environmental site assessments, and is not meant to be a substitute for a full historical investigation as defined in ASTM El 527. The information provided in this proprietary database may or may not be complete; i.e., the absence of a dry cleaner or gas station/filling station /service station site does not necessarily mean that such a site did not exist in the area covered by this report. (A note on "dry cleaning" sites: it is not possible for EDR to differentiate between establishments that use PERC on -site as a cleaning solvent and sites that function simply as drop -off and pick -up locations or that are traditional wet cleaning/laundry facilities. Therefore, it is essential for environmental professionals to incorporate professional judgment in the evaluation of each site.) Former Manufactured Gas (Coal Gas) Sites: The existence and location of Coal Gas sites is provided exclusively to EDR by Real Property Scan, Inc. aCopydght 1993 Real Property Scan, Inc. For a technical description of the types of hazards which may be found at such sites, contact your EDR customer service representative. Disclaimer Provided by Real Property Scan, Inc. The information contained in this report has predominantly been obtained from publicly available sources produced by entities other than Real Property Scan. While reasonable steps have been taken to insure the accuracy of this report, Real Property Scan does not guarantee the accuracy of this report. Any liability on the part of Real Property Scan is strictly limited to a refund of the amount paid. No claim is made for the actual existence of toxins at any site. This report does not constitute a legal opinion. TC11010443.3p Page GR -18 3y�o GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING STATE OF CALIFORNIA BROWNFIELDS DATABASES RECORDS VCP: Voluntary Cleanup Program Properties Source: Department of Toxic Substances Control Telephone: 916 - 323 -3400 Contains low threat level properties with either confirmed or unconfirmed releases and the project proponents have request that DTSC oversee investigation and/ or cleanup activities and have agreed to provide coverage for DTSC's costs. Date of Government Version: 04128103 Date of Last EDR Contact: 06102/03 Database Retease Frequency: Quarterly Date of Next Scheduled EDR Contact: 09/01/03 OTHER DATABASES Depending on the geographic area covered by this report, the data provided in these specialty databases may or may not be complete. For example, the existence of wetlands information data in a specific report does not mean that all wetlands in the area covered by the report are included. Moreover, the absence of any reported wetlands information does not necessarily mean that wetlands do not exist in the area covered by the report. Oil/Gas Pipelines: This data was obtained by EDR from the USGS in 1994. it is referred to by USGS as GeoData Digital Line Graphs from 1:100,000 -Scale Maps. It was extracted from the transportation category Including some oil, but primarily gas pipelines. Electric Power Transmission Line Data Source: PennWell Corporation Telephone: (800) 823 -6277 This map includes information copyrighted by PennWell Corporation. This Information is provided on a best effort basis and PennWell Corporation does not guarantee its accuracy nor warrant its fitness for any particular purpose. Such Information has been reprinted with the permission of PennWell. Sensitive Receptors: There are individuals deemed sensitive receptors due to their fragile immune systems and special sensitivity to environmental discharges. These sensitive receptors typically include the elderly, the sick, and children. While the location of all sensitive receptors cannot be determined, EDR indicates those buildings and facilities - schools, daycares, hospitals, medical centers, and nursing homes - where individuals who are sensitive receptors are likely to be located. AHA Hospitals: Source: American Hospital Association, Inc. Telephone: 312 -280 -5991 The database includes a listing of hospitals based on the American Hospital Association's annual survey of hospitals. Medical Centers: Provider of Services Listing Source: Centers for Medicare & Medicaid Services Telephone: 410 - 786 -3000 A listing of hospitals with Medicare provider number, produced by Centers of Medicare & Medicaid Services, a federal agency within the U.S. Department of Health and human Services. Nursing Homes Source: National Institutes of Health Telephone: 301 -594 -6248 Information on Medicare and Medicaid certified nursing homes in the United States. Public Schools Source: National Center for Education Statistics Telephone: 202- 502 -7300 The National Center for Education Statistics' primary database on elementary and secondary public education in the United States. It is a comprehensive, annual, national statistical database of all public elementary and secondary schools and school districts, which contains data that are comparable across all states. Private Schools Source: National Center for Education Statistics Telephone: 202 - 502 -7300 The National Center for Education Statistics' primary database on private school locations in the United States. Daycare Centers. Licensed Facilities Source: Department of Social Services Telephone: 916 - 657 -4041 TC11010443.3p Page GR -19 3 t 1�!-lo GOVERNMENT RECORDS SEARCHED I DATA CURRENCY TRACKING Flood Zone Data: This data, available in select counties across the country, was obtained by EDR In 1999 from the Federal Emergency Management Agency (FEMA). Data depicts 100 -year and 5D0 -year flood zones as defined by FEMA. NWI: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002 from the U.S. Fish and Wildlife Service. STREET AND ADDRESS INFORMATION ® 2003 Geographic Data Technology, Inc., Rel. 0712002. This product contains proprietary and confidential property of Geographic Data Technology, Inc. Unauthorized use, including copying for other than testing and standard backup procedures, of this product is expressly prohibited. TC11010443.3p Page GR -20 G €OCHECK ®- PHYSICAL SETTING SOURCE ADDENDUM TARGET PROPERTY ADDRESS REDGEWICK PROPERTY EAST SIDE OF TASSAJARA RD LIVERMORE, CA 94550 TARGET PROPERTY COORDINATES Latitude (North): Longitude (West): Universal Tranverse Mercator: UTM X (Meters): UTM Y (Meters): Elevation: 37.734638 - 37' 44'4,7" 121.861450 -121' 51'41.2" Zone 10 640324.9 4176778.5 598 ft. above sea level 3L EDR's GeoCheck Physical Setting Source Addendum has been developed to assist the environmental professional with the collection of physical setting source information in accordance with ASTM 1527 -00, Section 7.2.3. Section 7.2.3 requires that a current USGS 7.5 Minute Topographic Map (or equivalent, such as the USGS Digital Elevation Model) be reviewed. It also requires that one or more additional physical setting sources be sought when (1) conditions have been identified in which hazardous substances or petroleum products are likely to migrate to or from the property, and (2) more information than is provided in the current USGS 7.5 Minute Topographic Map (or equivalent) is generally obtained, pursuant to local good commercial or customary practice, to assess the impact of migration of recognized environmental conditions in connection with the property. Such additional physical setting sources generally include information about the topographic, hydrologic, hydrogeologic, and geologic characteristics of a site, and wells in the area. Assessment of the impact of contaminant migration generally has two principle investigative components: 1. Groundwater flow direction, and 2. Groundwater flow velocity. Groundwater flow direction may be impacted by surface topography, hydrology, hydrogeology, characteristics of the soil, and nearby wells. Groundwater flow velocity is generally impacted by the nature of the geologic strata. EDR's GeoCheck Physical Setting Source Addendum is provided to assist the environmental professional in forming an opinion about the impact of potential contaminant migration. TC11010443.3p Page A -1 3LIq GROUNDWATER FLOW DIRECTION INFORMATION i Groundwater flow direction for a particular site is best determined by a qualified environmental professional using site - specific well data. If such data is not reasonably ascertainable, it may be necessary to rely on other sources of information, such as surface topographic information, hydrologic information, hydrogeologic data collected on nearby properties, and regional groundwater flow information (from deep aquifers). i TOPOGRAPHIC INFORMATION Surface topography may be indicative of the direction of surficial groundwater flow. This Information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should- contamination exist on the target property, what downgradient sites might be impacted. TARGET PROPERTY TOPOGRAPHY USGS Topographic Map: 2437121 -F7 LIVERMORE, CA General Topographic Gradient: General WSW Source: USGS 7.5 min quad index SURROUNDING TOPOGRAPHY: ELEVATION PROFILES a J c i 0 W [IN M-11 O (� V N N e m m a a N m r � m � a n N O C South TP West I East TP 0 112 1 Miles Target Property Elevation: 598 ft. Source: Topography has been determined from the USGS 7.5' Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. TC11010443.3p Page A -2 J m ,j Jo V N a a West I East TP 0 112 1 Miles Target Property Elevation: 598 ft. Source: Topography has been determined from the USGS 7.5' Digital Elevation Model and should be evaluated on a relative (not an absolute) basis. Relative elevation information between sites of close proximity should be field verified. TC11010443.3p Page A -2 350 GEOCHECe - PHYSICAL SETTING SOURCE SUMMARY HYDROLOGIC INFORMATION Surface water can act as a hydrologic barrier to groundwater flow. Such hydrologic information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should contamination exist on the target property, what downgradient sites might be impacted. Refer to the Physical Setting Source Map following this summary for hydrologic information (major waterways and bodies of water). FEMA FLOOD ZONE Target Property County ALAMEDA,CA Flood Plain Panel at Target Property: Additional Panels in search area: NATIONAL WETLAND INVENTORY NWI Quad at Target Property LIVERMORE FEMA Flood Electronic Data YES - refer to the Overview Map and Detail Map 0600010115B 06002505006 06002504756 0600250625B 06002506008 0600010120A NWI Electronic Data Covera e YES - refer to the Overview Map and Detail Map HYDROGEOLOGIC INFORMATION Hydrogeologic information obtained by installation of wells on a specific site can often be an indicator of groundwater flow direction in the immediate area. Such hydrogeologic information can be used to assist the environmental professional in forming an opinion about the impact of nearby contaminated properties or, should contamination exist on the target property, what'downgradient sites might be impacted. Site - Specific Hydrogeological Data': Search Radius: 1.25 miles Status: Not found • 01998 Site -sped dale gaMared by CERCUS Alu6, Nc. fwaedaee isend, WA Au ryes reserved. Al of the info ejon and opinions Pranged are dnae or 9re coed EPA repad(s). Muds was co pWd under • cow he -ire EnK+ rReapome Carp .. a and LiebBH, kdwn . Syelem (cERCt.157 imestigelbn. . TC11010443.3p Page A -3 OEOC °HEW PHYSICAL SETTI'N'G SOURCE SUMMARY GROUNDWATER FLOW VELOCITY INFORMATION Groundwater Flow velocity information for a particular site is best determined by a qualified environmental professional using site specific geologic and soil strata data. If such data are not reasonably ascertainable, it may be necessary to rely on other sources of information, including geologic age identification, rock stratigraphic unit and soil characteristics data collected on nearby properties and regional soil information. In general, contaminant plumes move more quickly through sandy - gravelly types of soils than silty - ciayey types of soils. GEOLOGIC INFORMATION IN GENERAL AREA OF TARGET PROPERTY Geologic information can be used by the environmental professional in forming an opinion about the relative speed at which contaminant migration may be occurring. ROCK STRATIGRAPHIC UNIT GEOLOGIC AGE IDENTIFICATION Era: Cenozoic Category: Continental Deposits System: Tertiary Series: Pliocene Code: Tpc (decoded above as Era, System & Series) Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - a digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS -11 (1994). DOMINANT SOIL COMPOSITION IN GENERAL AREA OF TARGET PROPERTY j The U.S. Department of Agriculture's (USDA) Soil Conservation Service (SCS) leads the National Cooperative Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps. The following information is based on Soil Conservation Service STATSGO data. Soil Component Name: ALTAMONT Soil Surface Texture: clay Hydrologic Group: Class D - Very slow infiltration rates. Soils are clayey, have a high water table, or are shallow to an impervious layer. Soil Drainage Class: Well drained. Soils have intermediate water holding capacity. Depth to water table is more than 6 feet. Hydric Status: Soil does not meet the requirements for a hydre soil. Corrosion Potential - Uncoated Steel: HIGH Depth to Bedrock Min: > 40 inches Depth to Bedrock Max: > 60 inches TC11010443.3p Page A-4 GEOCH'ECK® - PHYSICAL SETTING SOURCE SUMMARY Soil Layer Information Boundary Classification Layer Upper Lower Soil Texture Class AASHTO Group Unified Soil Permeability Soil Reaction Rate (In/hr) (pH) 1 0 inches 28 inches clay Slit -Clay FINE- GRAINED Max: 0.20 Max: 8.40 Materials (more SOILS, Silts Min: 0.06 Min: 6.10 than 35 pct. and Clays passing No. (liquid limit 200), Clayey 50% or more), Soils. Fat Clay. 2 28 inches 50 Inches clay Silt -Clay FINE - GRAINED Max: 0.20 Max: 8.40 Materials (more SOILS, Silts Min: 0.06 Min: 7.40 than 35 pct, and Clays passing No. (liquid limit 200), Clayey 50% or more), Soils. Fat Clay. 3 50 inches 54 inches weathered Not reported Not reported Max: 0.00 Max: 0.00 bedrock I I Min: 0.00 Min: 0.00 OTHER SOIL TYPES IN AREA Based on Soil Conservation Service STATSGO data, the following additional subordinant soil types may appear within the general area of target property. 1 Soil Surface Textures: silty clay loam clay loam loam loamy sand sandy loam Surficial Soil Types: silty clay loam clay loam loam loamy sand sandy loam Shallow Soil Types: clay loam Deeper Soil Types: unweathered bedrock ADDITIONAL ENVIRONMENTAL RECORD SOURCES According to ASTM E 1527 -00, Section 7.2.2, "one or more additional state or local sources of environmental records may. be checked, in the discretion of the environmental professional, to enhance and supplement federal and state sorces... Factors to consider in determining which local or additional state records, if any, should be checked include (1) whether they are reasonably ascertainable, (2) whether they are sufficiently useful, accurate, and complete in light of the objective of the records review (see 7.1.1), and (3) whether they are obtained, pursuant to local, good commercial or customary practice." One of the record sources listed in Section 7.2.2 is water well information. Water well information can be used to assist the environmental professional in assessing sources that may impact groundwater flow direction, and in forming an opinion about the impact of contaminant migration on nearby drinking water wells. TC11010443.3p PageA -5 GEO`CHECK® - PHYSICAL SETTING SOURCE SUMMARY WELL SEARCH DISTANCE INFORMATION DATABASE SEARCH DISTANCE (miles) Federal USGS 1.000 Federal FRDS PWS Nearest PWS within 1 mile State Database 1.000 FEDERAL USGS WELL INFORMATION LOCATION MAP ID WELL ID FROM TP 1 USGS0120433 112 -1 Mile NW FEDERAL FRDS PUBLIC WATER SUPPLY SYSTEM INFORMATION LOCATION MAP ID WELL ID FROM TP No PWS System Found Note: PWS System location is not always the same as well location. STATE DATABASE WELL INFORMATION LOCATION MAP 1D WELL 1D FROM TP No Wells Found 353 TC11010443.3p Page A-6 1.4 C) PHYSICAL SETTING SOURCE MAP - 11010443.3p it 40 ij IIH .��r �� ii !,• (i'; ' j �'I /(!i�; � � ? ,, Iii, /i,; i '>�/ -- ~``- -� ' ', `- �/ / � \ `` 1�,`'1 1,� i � _ ) I� I'/ 1 �.r`'._; 11 �i! r�l fill 1 j f /' 1 � � �, ''l r��i "• l�,ill 1•� \\ , %', t 'r� j �r i i � , t l i ,'r' //. ! .. �' � �) � . l ! � �'•:;.�'\`� o\ • i ,, \ :` % j r. ":' i i Wily; / lji •— lit 1 \,`:�. /% ,w^ iJ if - -.. J _ t 1 � , ,.•:..; ;. :•sue - / � -. -- _ :�```_.,�' /; I + /� � %, i a.` t � � � j � / 1.� i ( (�� i �li;! i � `1 \`•Ir I ijl'!� \ / ` ` �, J \ � •''� \\ � it )/t _" %tao'`' if A/ County Boundary CUSTOMER: N Major Roads East Side of Tassajara Rd CONTACT: Tim Casey } Groundwater Flow Directio n " ' Contour Lines G t Indeterminate Groundwater Flow at Location ,P41 Earthquake Fault Lines DATE: July 10, 2003 7 :43 pm ' OEarthquake epicenter, Richter 5 or greater G V Groundwater Flow Varies at Location ® Hydrogeotogicai Data (9 ® Water Wells • OII, gas or related wells © Public Water Supply Wells • Cluster of Multiple Icons TARGET PROPERTY: Redgewiek Property CUSTOMER: Eekland Consultants, Inc. ADDRESS: East Side of Tassajara Rd CONTACT: Tim Casey CITY /STATE/ZIP: Livermore CA 94550 INQUIRY #: 11010443.3p LAT /LONG: 37.7346/121.8615 DATE: July 10, 2003 7 :43 pm ' caDWIO`r 4 2o03 EDP, Inc ci 2003 GOT. Inc. B.I. 07!2002. AN PI01ds Racsrved. -3'55tHgO GEOCHECK ®- PHYSICAL SETTING SOURCE MAP FINDINGS Map 1D Direction Distance Elevation Database EDR ID Number 1 NW FED USGS USGS0120433 112 -1 Mile Lower Agency: USGS Site ID: 374430121521201 Site Name: 0025001 E21P001M Dec. Latitude: 37.74159 Dec. Longitude: - 121.87107 Coord Sys: NAD83 State: CA County: Contra Costa County Altitude: 490.00 Hydrologic code: 18050004 Topographic: Pediment Site Type: Ground -water other than Spring Const Date: 19780101 Inven Date: Not Reported Well Type: Single well, other than collector or Ranney type Primary Aquifer. Not Reported Aquifer type: Not Reported Well depth: Not Reported Hole depth: Not Reported Source: Not Reported Project no: Not Reported. TC11010443.3p Page A-8 354, GEOCHECK®-PHYSICAL SETTING SOURCE MAP FINDINGS RAIJOI AREA RADON INFORMATION Federal EPA Radon Zone for ALAMEDA County: 2 Note: Zone 1 indoor average level > 4 pCUL. Zone 2 indoor average level >= 2 pCIIL and <- 4 pCI1L. Zone 3 indoor average level < 2 pCUL. Federal Area Radon Information for Zip Code: 94550 Number of sites tested: 6 Area Average Activity % <4 pCi /L % 4 -20 pCUL % >20 pCi /L Living Area -1st Floor 0.567 pCUL 100% 0% 0% Living Area - 2nd Floor Not Reported Not Reported Not Reported Not Reported Basement Not Reported Not Reported Not Reported Not Reported TC11010443.3p Page A -9 35� �f-y y 0 PHYSICAL SETTING SOURCE RECORDS SEARCHED TOPOGRAPHIC INFORMATION USGS 7.5 Digital Elevation Model (DEM) Source: United States Geologic Survey EDR acquired the USGS 7.5' Digital Elevation Model in 2002 7.5- Minute DEMs correspond to the USGS 1:24,000- and 1:25,000 -scale topographic quadrangle maps. HYDROLOGIC INFORMATION Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 1999 from the Federal Emergency Management Agency (FEMA). Data depicts 100 -year and 500 -year flood zones as defined by FEMA. NN: National Wetlands Inventory. This data, available in select counties across the country, was obtained by EDR in 2002 from the U.S. Fish and Wildlife Service. HYDROGEOLOGIC INFORMATION AQUIFLOWR Information System Source: EDR proprietary database of groundwater flow information EDR has developed the AQUIFLOW Information System (AIS) to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report, hydrogeologically determined groundwater flow direction and depth to water table information. GEOLOGIC INFORMATION Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 12,500,000 Scale - A digital representation of the 1974 P.B. King and H.M. Belkman Map, USGS Digital Data Series DDS -11 (1994). STATSGO: State Sol Geographic Database The U.S. Department of Agriculture's (USDA) Soil Conservation Service (SCS) leads the national Cooperative Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) son survey maps. ADDITIONAL ENVIRONMENTAL RECORD SOURCES FEDERAL WATER WELLS PWS: Public Water Systems Source: EPA/Office of Drinking Water Telephone: 202 -564 -3750 Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at least 25 people for at least 60 days annually. PWSs provide water from wells, rivers. and other sources. PWS ENF: Public Water Systems Violation and Enforcement Data Source: EPA/Office of Drinking Water Telephone: 202 -564 -3750 Violation and Enforcement data for Public Water Systems from the Safe Drinking Water Information System (SDWIS) after August 1995. Prior to August 1995, the data came from the Federal Reporting Data System (FRDS). USGS Water Wells: USGS National Water Inventory System (NWIS) This database c retains descriptive information on sites where the USGS collects or has collected data on surface water and /or groundwater. The groundwater data includes Information on wells, springs, and other sources of groundwater. TC11010443.3p Page A -10 35� �yyo PHYSICAL SETTING SOURCE RECORDS SEARCHED STATE RECORDS California Drinking Water Quality Database Source: Department of Health Services Telephone: 916- 324 -2319 The database includes all drinking water compliance and special studies monitoring for the state of California since 1984. It consists of over 3,200,000 individual analyses along with well and water system information. California Oil and Gas Well Locations for District 2, 3, 5 and 6 Source: Departrnent of Conservation Telephone: 916- 323 -1779 RADON Area Radon Information Source: USGS Telephone: 703- 356AO20 The National Radon Database has been developed by the U.S. Environmental Protection Agency (USEPA) and is a compilation of the EPA/State Residential Radon Survey and the National Residential Radon Survey. The study covers the years 1986 -1992. Where necessary data has been supplemented by information collected at private sources such as universities and research institutions. EPA Radon Zones Source: EPA Telephone: 703 - 356 -4020 Sections 307 & 309 of IRAA directed EPA to Fist and identify areas of U.S. with the potential for elevated indoor radon levels. A .1;x 7 Airport Landing Facilities: Private and public use landing facilities Source: Federal Aviation Administration, 800 -457 -6656 Epicenters: World earthquake epicenters, Richter 5 or greater Source: Department of Commerce, National Oceanic and Atmospheric Administration California Earthquake Fault Lines: The fault lines displayed on EDR's Topographic map are digitized quaternary fault fines, prepared in 1975 by the United State Geological Survey. Additional information (also from 1975) regarding activity at specific fault lines comes from California's Preliminary Fault Activity Map prepared by the California Division of Mines and .Geology. TC11010443.3p Page A -11 } 35q + L4 LA�3 r.- CL � k � s � ) m \%nw\ k m %I.w 0 onwU) 0 &| ) § $w)ƒ! 00000 . wwlSE A \\4§5 2 }) . ! �WJo LL ) (°° ° \2�k� & !! »02 ) § \ \\ § 0 z § § F2nn{ ƒ I \$§§b 0 w § . 0\\ y ° °i�> ,om 'otu § §&§* §(�j} ■ R -1u \cc « - -o U) tL0 M !G G 2 ( \� E ekd§9 $w)ƒ! 00000 . wwlSE A \\4§5 DETAILED ORPHAN LISTING EDR ID Number Site Databases) EPA ID Number PG &E GAS PLANT LIVERMORE CERC -NFRAP 1003878884 200 TO 375 FT W OF N ST @RR CAD981415102 LIVERMORE, CA 94550 Operator Phone: Not reported CERCLIS -NFRAP Classification Data: Owner: Calif Dept Of Water Resources Site Incident Categorkiot reported Federal Facility: Not a Federal Facility Non NPL Code: NFRAP Sacramento, CA 95816 Ownership Status: Unknown NPL Status: Not on the NPL CERCLIS -NFRAP Assessment History: Regulation Status: To Be Determined Assessment: DISCOVERY Completed: 06101/1986 Assessment: PRELIMINARY ASSESSMENT Completed: 12101/1987 Assessment: ARCHIVE SITE Completed: 12/01/1987 DEL VALLE RESERVOIR DS SWFILF S105678083 ARROYO RD, 114 Ml NW OF DEL VALLE DAM NIA LIVERMORE, CA LF: Facility ID: 01-CR -0032 Operator. Not reported Operator Phone: Not reported Operator Addr. Owner: Calif Dept Of Water Resources Owner Address: Not reported 3251 S Street Sacramento, CA 95816 Owner Telephone: (916) 227 -7567 Activity: Solid Waste Disposal Site Operators Status: Closed Regulation Status: To Be Determined Region: STATE Lat/Long: 381 -122 Permit Date: Not reported Accepted Waste: Restrictions: Status : Not reported Swisnumber : Not reported Site Type: Not reported Ake: Not reported Type Of Waste: Not reported Disposal Area: Not reported SWFP Date: Not reported WDR Number: Not reported Dates Of Operation : Not reported Closure Approved : Not reported Date Of Field Units : Not reported Surface Condition: Not reported Landfill Gas: Not reported Leachate : Not reported Emergency Response: Not reported Other Recommendation : Not reported Reassess Site : Not reported Priority For Site Assessment: Not reported Lea Date: Not reported Explanation: Not Reported No Further Action: Not Reported Permitted Throughput with Units: 0 Permitted Throughput with Units: 0 Permitted Throughput with Units: 0 Actual Throughput with Units: Not reported TC11010443.3p Page 8 DETAILED ORPHAN LISTING Site DEL VALLE RESERVOIR DS (Continued) Actual Capacity with Units: 0 Permitted Capacity with Units: 0 Remaining Capacity with Units: Not reported Permitted Total Acreage: 0 Inspection Frequency: Quarterly Landuse Name: Not reported GIS Source: Map Permit Status: Not reported Category: Disposal Unit Number: 01 Last Waste Tire Inspectiori Count: 0 Last Waste sire Inspection Date: 0 Original Waste Tire Count: Not reported Original Waste Tire Count Date: Not reported Closure Date: 12/31/57 Closure Type: Estimated Disposal Acreage: 0 Remaining Capacity: 0 DITCH+CULVERT PROPERTY OWNER DrrCH +CULVERT PROPERTY OWNER LIVERMORE, CA Site ID: 8856827 Site Location: DITCH +CULVERT PROPERTY OWNER LIVERMORE, CA ALAMEDA County Report No: Not reported EPA Region: 09 Spill Date: 01110/1988 Spill Time: 16:00 Medium Desc: Water Damage/Amt: Yes J $0.00 Evacuation: No injured: Fatalities: None Disch Org: Notes: UNNNAMED CREEK Disch Add: 6410 N FRONT LIVERMORE, CA 2t"57� t��D FOR ID Number Database(s) EPA ID Number 5105678083 ERNS 8856827 NIA None HK GRADING + CONST INC Duch County: ALAMEDA C.G. Unit: Not reported Cause: UNKNOWN Spilled Material Total Qty in Water Undot Cas Qty OIL Description: Resp Action: Misc. Info: Location: 0.00 lbs. 0.00 UN1270 Not reported Not reported CONTAMINATED EMBANKMENT+ UNNAMED CREEK/CAUSE= SOURCE =UNK CONTAMINATED EMBANKMENT +UNNAMED CREEK/CAUSE= SOURCE =UNK REFERRED TO CA -F &G AND RWQCB FOR ACTION OES CONTROL NUMBER 88 -0065 CO /PUBLIC REPORTER =MR. MARSH DITCH +CULVERT PROPERTY OWNER MARCIEL RANCH LANDSPREADiNG JESS RANCH ROAD LIVERMORE, CA LF: Facility ID: 01 -AA -0273 Operator. Not reported Operator Phone: Not reported Operator Addr. SWFILF S102359662 N/A TC1 101 0443.3p Page 9 0 0 DETAILED ORPHAN LISTING EDR ID Number Site Database(s) EPA ID Number MARCIEL RANCH LANDSPREADING (Continued) S102359662 Owner. Waste Management Of The Inland Valley Owner Address: Not reported 800 Temescal Street Corona, CA 91719 Owner Telephone: (909) 817 -2400 Activity: Solid Waste Landfill Operator's Status: Planned Regulation Status: Exempt Region: STATE Lat/Long: 381-122 Permit Date: 9129/93 Accepted Waste:. Restrictions: Status : Not reported Swisnumber : Not reported Site Type : Not reported Aka: Not reported Type Of Waste: Not reported Disposal Area: Not reported SWFP Date: Not reported WDR Number: Not reported Dates Of Operation : Not reported Closure Approved: Not reported Date Of Field Units : Not reported Surface Condition : Not reported Landfill Gas: Not reported Leachate : Not reported Emergency Response: Not reported Other Recommendation: Not reported Reassess Site: Not reported Priority For Site Assessment: Not reported Lea Date: Not reported Explanation: Not Reported No Further Action: Not Reported Permitted Throughput with Units: 0 Permitted Throughput with Units: 0 Permitted Throughput with Units: 0 Actual Throughput with Units: Not reported Actual Capacity with Units: 0 Permitted Capacity with Units: 0 Remaining Capacity with Units: Not reported Permitted Total Acreage: 0 Inspection Frequency: None Landuse Name: Not reported GIS Source: Place Permit Status: Exempted Category: Disposal Unit Number. 01 Last Waste Tire Inspection Count: 0 Last Waste Tire Inspection Date: 0 Original Waste Tire Count: Not reported Original Waste Tire Count Date: Not reported Closure Date: / / Closure Type: Not reported Disposal Acreage: 0 Remaining Capacity: 0 TC11010443.3p Page 10 DETAILED ORPHAN LISTING Site CALIFORNIA WATER SERV WELL #10-01 RICHEN AVE & SUNSET DRIVE LIVERMORE, CA 94550 CERCLIS - NFRAP Classification Data: Site Incident CategorNot reported Non NPL Code: NFRAP Ownership Status: Private CERCLIS - NFRAP Assessment History: Assessment: DISCOVERY Assessment: PRELIMINARY ASSESSMENT Assessment ARCHIVE SITE CERCLIS - NFRAP Alias Name(s): CALIFORNIA WATER SERVICES WELL #10 -01 CWS WELL #10 -01 CITY OF LIVERMORE (OPERATOR) EDR ID Number Database(s) EPA ID Number CERC - NFRAP 1003879288 CAD982400236 Federal Facility. Not a Federal Facility NPL Status: Not on the NPL Completed: 06/01/1988 Completed: 1010111988 Completed: 10/01/1988 TC11010443.3p Page 11 DUBLIN SAN RAMON SERVICES DISTRICT 3bL{ t y �o 7051 Dublin Boulevard Dublin, California 94568 Phone: 925 828 0515 FAX: 925 829 1180 www.dsrsd.com October 26, 2009 RECEIVED City of Dublin - City Manager's Office OCT 2 7 zoo Martha Aja - Environmental Specialist 8� ��,�� 100 Civic Plaza Dublin, CA 94568 Subject: Dublin Ranch North Annexation Area - Notice of Availability of Nitigated Negative Declaration and Intent to Adopt Mitigated Negative Declaration Dear Ms. Aja: Thank you for the opportunity to review and comment on the Notice of Intent to Adopt a Mitigated Negative Declaration for the Dublin Ranch North Annexation Area. As noted in your study, this area is 157.7 acres in extent and is currently outside the City of Dublin's city limits but within the sphere of influence. Likewise, the property is within the Dublin San Ramon Services District (DSRSD) sphere of influence and must be annexed to the DSRSD service area for the District to provide services. DSRSD has identified this property for future District services effective with the Eastern Dublin Specific Plan of 1993. DSRSD has found no impacts or necessary mitigations beyond those identified in the Notice of Intent to Adopt a Mitigated Negative Declaration. As noted in the study, the current Specific Plan/General Plan Amendment provides for development of 16.8 acres with Low Density Residential units and 143.2 acres of Rural Density /Agricultural units. Thus, the current Specific Plan provides for development of up to 68 units on this property. The District noted that this revision provides for only four Estate Residential units with the rest of the property designated as Open Space. Thus, this revision will require a lower volume of potable water services and a similar lower volume of sanitary sewer services from DSRSD. DSRSD would be capable of providing the necessary services at the higher volumes permitted under the current Specific Plan and will be able to provide needed services at the revised development levels. As the area is currently outside the DSRSD service area, annexation fees will be required to bring the annexation area into our service area. As part of the permitting process, Water Annexation fees of $11.74 per acre and Sewer Annexation fees of $28.58 per acre will be charged for the area being annexed. Thank you for the opportunity to comment. Should you have any questions concerning the above, please contact Stan Kolodzie at (925) 875 -2253. SK: st Sincere J STANLEY LODZ .E. Associate Engineer Dublin San Ramon Sendces District is a Public Entity H:\ENGDEPnCOA\DUBLINTA 08 -045 NOI to Adopt Mit Neg Dec - Dublin Ranch North (Redgewick) Annexation Area.doc EXHIBIT B TO ATTACHMENT 9 LAFCO 3(195 + ALAMEDA LOCAL AGENCY FORMATION COMMISSION 1221 OAK STREET, SUITE 555 " OAKLAND, CA 94612 (510) 271 -5142 FAX (510) 272 -3784 WWW.ACGOV.ORG/LAFCO Members Katy Foulkes, Chair Gail Steele Marshall Kamena Sblend Sblendorio Special District Member County Member City Member Public Member Ayn Wieskamp Nate Miley, Vice Chair Jennifer Hosterman Special District Member County Member City Member Alternates Louis Andrade Scott Haggerty Anthony B. Santos David Haubert Special District Member County Member City Member Public Member Executive Officer Mona Palacios RECENED November 9, 2009 CITY OF DUSUN City of Dublin — City Manager's Office Nov 10 2009 Attn: Martha Aja — Environmental Specialist 100 Civic Plaza CRY KWGER'S OFACE Dublin CA 94568 Subject: Response to Initial Study/Mitigated Negative Declaration for the Dublin Ranch North Annexation Area Dear Ms. Aja: Thank you for the opportunity to comment on the Initial Study and Mitigated Negative Declaration (MND) for the Dublin Ranch North Annexation area. The Alameda Local Agency Formation Commission (LAFCo), as a responsible agency, needs to ensure that potential impacts relating to the proposed reorganization are evaluated to enable an informed decision by the Commission. To that end, we offer the following comments: 1. Please include properly labeled annexation proposal maps. There should be one for the City of Dublin proposed annexation, and one for the proposed annexation to the Dublin San Ramon Services District (DSRSD). 2. The 17 year old Eastern Dublin Environmental Impact Report (EIR) is dated and, therefore, may be less effective in the evaluation of potential agricultural impacts, especially cumulative and growth - inducing impacts due to substantial changes in land use throughout the project vicinity and changes in laws. Please provide a summary table highlighting the areas of re- analysis or new analysis (affordable housing, greenhouse gas emissions, storm water regulations, etc.) that the City has done. 3. Please provide a complete table showing the existing and proposed service providers in the project description. 4. Section XII on Population and Housing, p. 70 relies on the 1993/4 Eastern Dublin Specific Plan and General Plan, and does not address the City's current affordable housing plan. These documents may be too dated for effective use in this evaluation. 5. In general, potential impacts, conflicts and inconsistencies should be evaluated based on the change from the existing General Plan designations (Alameda County's East County Area Plan), as opposed to the City of Dublin's General and Specific Plans. 6. LAFCo's comprehensive agricultural, service, and annexation policies are not reviewed and considered in the current IS/MND. Please address this information in your Response to Comments. EXHIBIT C TO ATTACHMENT 9 City of Dublin November 9, 2009 Page 2 Should you have questions about the information above, please contact me 510- 272 -3894. Sincerely, Mona Palacios Executive Officer VALAF\Dublin\Dublin Ranch NorthVesponse to MND.doc cc: Each Alameda LAFCo Commissioner Brian Washington, LAFCo Legal Counsel Ineda Adesanya, LAFCo Planner Letter 2: Alameda County Local Agency Formation Commission • Comment 2.1: Please include properly labeled annexation maps. There should be one for the City of Dublin proposed annexation and one for the proposed annexation to the City of Dublin San Ramon Services District (DSRSD). Response: See attached labeled annexation map. • Comment 2.2: The 17 year old Eastern Dublin Impact Report (EIR) is dated and, therefore, may be less effective in evaluation of potential agricultural impacts, especially cumulative and growth inducing impacts due to substantial changes in land use throughout the project vicinity and changes in law. Please provide a summary table highlighting the areas of re- analysis or new analysis (affordable housing, greenhouse gas emissions, storm water regulations, etc.) that the City has done. Response: 2a. The Eastern Dublin EIR was certified in 1993 and its purpose was to analyze the long term impacts of urbanizing Eastern Dublin over a 20 — 30 year period. The Eastern Dublin EIR analyzed the change from the existing physical condition (which includes the existing soils and agricultural uses). At the time that the EIR was certified, most of Eastern Dublin was undeveloped and grazing was a prevalent use. The Eastern Dublin EIR addressed the cumulative effects of developing agricultural and open space areas and the basic policy considerations accompanying the change in character from undeveloped lands to developed lands. The project proposes a limited development area with the majority of the project site remaining in open space uses. It is expected that under the terms of the conservation easement grazing would continue to be a primary use of the open space portion of the property, which comprises approximately 127 acres of the 157 acre project site. As provided by CEQA, the Mitigated Negative Declaration (MND) prepared for the project updated the prior EIR through the completion of an Initial Study checklist. Since the project proposes an annexation request, the MND examined the LAFCo definition of prime agricultural soil. The Initial Study /MND determined that no prime agricultural soils exist on the project site as defined by LAFCo; therefore, as indicated in the MND there are no significant agricultural impacts beyond those that were previously identified in the Eastern Dublin EIR. The commenter refers to the substantial changes in land use throughout the project vicinity. The commenter is correct in that substantial changes have occurred in Eastern Dublin; however, development has occurred as anticipated and in the 1993 Eastern Dublin EIR. Development of the Eastern Dublin area has proceeded based on the approved Eastern Dublin General Plan Amendment and EXHIBIT D TO A TT A &' TTJL Him n Specific Plan. Development has occurred where it was anticipated and analyzed in the EIR and generally areas planned for Open Space remain in Open Space. 2b. Affordable Housing. The City of Dublin has adopted an Inclusionary Ordinance to increase affordable housing opportunities in the City. All new residential development projects of 20 units or more are required to construct 12.5% of the total number of dwelling units within the development as affordable units. The project, due to its small size (4 lots) is exempt from this Ordinance. 2c. Storm Water Regulations. Water quality and drainage issues are addressed on pages 64 — 67 of the MND. As noted in the MND, the National Pollution Discharge Elimination System (NPDES) controls the discharge of pollutants to water bodies from point and non -point sources. In the San Francisco Bay Area, this program is administered by the Bay Area Regional Water Quality Control Board. The City of Dublin is a co- permittee of the Alameda County Clean Water Program, which is a coordinated effort by bay area governments in Alameda County to improve the water quality of the San Francisco Bay. Prior to the issuance of grading permits, the project will be reviewed to ensure that no water quality standards or waste discharge requirements will be violated. As a standard condition of approval and consistent with the Eastern Dublin EIR mitigations, the Applicant shall be required to prepare a Storm Water Pollution Prevention Plan which lists Best Management Practices to reduce drainage and related water quality impacts from construction and post- construction activities to a less than significant level. Construction of the project is anticipated to lead to an increase in impervious surfaces on the site; however, due to the small size of the project (4 lots) and the design of the stormdrain system on the Preliminary Grading Plan and Vesting Tentative Map, run -off from the site will not exceed the capacity of the existing drainage system. An on -site bioswale will be constructed on the project site to treat surface runoff from portions of the project site. Operation of the bioswale will ensure that the project doesn't add substantial amounts of polluted run -off to the drainage system. Additionally, water quality treatments will be a standard Condition of Approval on the Vesting Tentative Map. 2d. Greenhouse gas emissions. GHG emissions are addressed on p. 46 of the MND. No further analysis is required; however, in response to the comment, the City provides the following additional information. The applicant proposes only 4 residential lots, and based on the small size of the project, any potential impact would be a less than significant contribution to cumulative GHG emissions. Furthermore, the project minimizes both construction and operational emissions generally and as to GHG in that the four future homes will be located within limited building and grading envelopes within the proposed lots. The building areas are located close to the private driveway, which is close to the approved development to the west, thereby minimizing the length of accessways to the project and limiting the amount of grading (and resulting emissions) for creation 3(9 O-y�o of the driveway and building sites. The project would also be subject to any regulatory conservation ordinances, e.g., DSRSD's water conservation ordinance. • Comment 2.3: Please provide a complete table showing the existing and proposed service providers in the project description. Response: The existing and proposed service providers are discussed in Section XIII, Public Services (pgs. 70 — 72) and Section XVI, Utilities and Service Systems (pgs. 76 — 78). Staff does not feel that it is necessary to include this information in the project description. The project site is currently vacant with the exception of the DSRSD water tank and access road; therefore, it currently does not receive any services. The existing services providers listed in the table below indicate the service providers if the property were to develop in the County. Per the commenter's request, the table below shows the existing and proposed service providers. *City of Dublin contracts with Alameda County for fire protection * *City of Dublin contracts with Alameda County Sheriff Department for police protection • Comment 2.4: Section XII on Population and Housing, p. 70 relies on the 1993/94 Eastern Dublin Specific Plan and General Plan, and does not address the City's current affordable housing plan. These documents may be too dated for effective use in this evaluation. Response: The comment references the population and housing discussion on page 70 of the MND. The MND updates population and housing information based on the Department of Finance's 2008 figure. As noted in the Initial Study, the project would not displace any housing or people. As previously noted, the project reflects development proposed in a limited area and is a substantial decrease in the number of units assumed in the Existing Service Providers Proposed Service Providers Fire Protection Alameda County Fire Alameda County Fire Department Department* Police Protection Alameda County Sheriff Alameda County Sheriff Department Department* * Schools Dublin Unified School Dublin Unified School District District Parks Alameda County/East Bay City of Dublin/East Bay Regional Park District Regional Park District Water /Sewer Alameda County Water Dublin San Ramon Services District District Solid Waste Waste Management Amador Valley Industries *City of Dublin contracts with Alameda County for fire protection * *City of Dublin contracts with Alameda County Sheriff Department for police protection • Comment 2.4: Section XII on Population and Housing, p. 70 relies on the 1993/94 Eastern Dublin Specific Plan and General Plan, and does not address the City's current affordable housing plan. These documents may be too dated for effective use in this evaluation. Response: The comment references the population and housing discussion on page 70 of the MND. The MND updates population and housing information based on the Department of Finance's 2008 figure. As noted in the Initial Study, the project would not displace any housing or people. As previously noted, the project reflects development proposed in a limited area and is a substantial decrease in the number of units assumed in the Eastern Dublin EIR (decrease of 64 units) and therefore would not have any growth inducing impacts beyond those impacts identified in the EIR. The provision of affordable housing is not a CEQA issue. The City of Dublin does have an Inclusionary Ordinance and this project is not subject to it due to its small size. Pursuant to Section 8.68.0.30 of the Dublin Zoning Ordinance, residential development projects with 20 units or more are required to construct 12.5% of the total number of dwelling units as affordable units. The Eastern Dublin EIR supplemented by the project MND adequately analyzes population and housing issues under CEQA. • Comment 2.5: In general, potential impacts, conflicts and inconsistencies should be evaluated based on the change from the existing General Plan designations (Alameda County's East County Area Plan), as opposed to the City of Dublin's General and Specific Plans. Response: The project site has been included in the City's General Plan and Eastern Dublin Specific Plan since 1993. The Eastern Dublin EIR analyzed the transition from rural residential and agricultural uses to residential uses. The proposed project includes a request to change the existing land use designations from Low Density Residential and Rural Residential /Agricultural to Estate Residential and Open Space. The companion rezone will further reduce the density on the site from the 68 units studied in the Eastern Dublin EIR to 4 units. The lower density is compatible with the intent of the General Plan and Specific Plan and allows for a project which will preserve open space and will cluster units in less constrained areas of the project site. • Comment 2.6: LAFCo's comprehensive agricultural, service, and annexation policies are not reviewed and considered in the current IS/MND. Please address this information in your Response to Comments. Response: The commenter does not specifically identify or cite to the referenced policies. As informational documents under CEQA, the EDEIR and the MND identified and analyzed the potential for significant impacts related to conversion of agricultural lands and provision of urban services to the Eastern Dublin planning area. To the extent that the LAFCo factors and policies address environmental issues, information on potential impacts and mitigations is contained in the EDEIR and MND for LAFCo consideration. For example, the Knox- Cortese- Hertzberg Act and LAFCo polices evince a strong interest in preserving prime agricultural lands. The EIR and MND directly address and analyze this issue, and based on the analyses, conclude that no prime agricultural lands exist on the project site. In response to the commenter's request and absent more specificity about the applicable policies, the City provides the following listing and discussion of 31I + yt�o LAFCo policies relating to agricultural and service policies regarding the proposed project. 1.01 Agriculture and Open Space 1.0102. Agricultural land shall be determined to be prime based on soil characteristics, potential for prime agriculture land designation if irrigated or productivity Discussion: Refer to Section II of the MND, which includes a recent site - specific analysis of agricultural suitability of the Dublin Ranch North site prepared by Berlogar Geotechnical Consultants. The Berlogar report and the MND determined that the Dublin Ranch North site does not qualify as prime agricultural land based on criteria included in the Knox- Cortese- Hertzberg Act. Therefore, the proposed project would be consistent with this policy. 1.0103. LAFCO shall discourage proposals that encourage or support urbanization outside of cities unless adverse public health and safety would occur and there is no feasible proposal alternative. Discussion: As identified in the above discussion section, the MND notes that the Dublin Ranch North site does not qualify as prime agricultural land. This property has been identified for future urban development in the Dublin General Plan since 1993. This property is now being considered for urbanization since properties surrounding three sides of the project area are already in the City of Dublin and have already developed, are in process of developing or have been approved for development. The Dublin Ranch North project site includes the last two remaining parcels that are located with the City's Sphere of Influence, but outside of the City Limits and represents a logical extension of City boundaries. Therefore, the proposed project would be consistent with this policy. 1.0104. LAFCo shall discourage city annexations of prime agricultural or important open space areas if such areas are not needed for urbanization within five years. Discussion: The HIND notes that the Dublin Ranch North site does not qualify as prime agricultural land and thus this policy does not apply to this application. 1.0106. LAFCo will work to preserve agricultural and open space land resources by considering the proposal's effect on important open space and agricultural lands and by guiding development away from agricultural and open space lands not planned or needed for development. 3l-� qo Discussion: Portions of the Dublin Ranch North property have been designated for residential land use since 1993 in the City of Dublin General Plan. This is the portion requested for development. The majority of the project site, 126.8 acres, is proposed to be placed in a permanent conservation easement for the protection of wildlife. Therefore, the proposed project would be consistent with this policy. 1.0107. Development or use of land for other than open space uses shall be guided away from existing prime agricultural lands in open space towards areas containing non -prime agricultural lands unless that action undermines adopted county or city land use plans that include open space and agricultural land conservation policies and plans. Discussion: The Dublin Ranch North property does not contain prime' agricultural lands as identified in the MND and portions of the property have been designed for Low Density Residential land use n the Dublin General Plan. The application to the City of Dublin requests that a portion of the Dublin Ranch North property be re- designated to Estate Residential with the balance of the site in Open Space. This Eastern Dublin Specific Plan, adopted by the City in 1993 provides for Resource Management policies and programs for open space preservation (Chapter 3.5). Therefore, the proposed project would be consistent with this policy. 1.0108. Urbanization or nonagricultural use of existing vacant lots or prime agricultural land areas within the jurisdiction of SOI of a local agency shall be encouraged before any proposal is approved which would allow for or lead to the development of prime agricultural or open space lands outside the jurisdiction or SOI of any local agency. Discussion: The project does not include prime agricultural lands, and is already within the Sphere of Influence for both the City and DSRSD. Additionally, the majority of the project site (126.8 acres) is proposed to be placed in a permanent conservation easement and no development will occur on this portion of the project site. Therefore, the proposed project is consistent with this policy. 1.0109. LAFCO shall require that applications with prezones or SO proposals identify areas set aside for agricultural or open space preserves and include protections for adjacent agricultural land. Discussion: The Applicant's Stage 1 and Stage 2 Development Plan and Vesting Tentative Tract Map, indicates that 126.8 acres of the project site will be designated as a permanent conservation easement. For the proposed Dublin Ranch North project, the terms of the conservation easement would prohibit construction of dwelling units within the easement area. Therefore, the proposed Project would be consistent with this policy. 313 - Llgo 5.0 General City Annexation and Detachment Policies and Standards 5.14. The Commission shall seek to approve changes of organization that encourage and provide well ordered, efficient development patterns that include the appropriate preservation and conservation of open space and prime agricultural lands within and around developed areas, and contribute to the orderly formation and development of local agencies based upon local circumstances and conditions. Discussion: The City of Dublin believes the proposed Dublin Ranch North Project is a well- designed project that is consistent with the Dublin General Plan and Eastern Dublin Specific Plan. Adequate protection is provided for the drainage that traverses the Project site through the Stage 1 and Stage 2 Development Plan and Vesting Tentative Tract Map, which maintains the sensitive areas of the site in a permanent conservation easement. 5.15. The Commission shall consider existing zoning and prezones, general plans and other land use plans, interests and plans of unincorporated communities, SOIs and master service plans of neighboring governmental entities and recommendations and determinations from related service review agencies. Discussion: The City of Dublin believes the proposed annexation is consistent with this policy, inasmuch as the Dublin Ranch North property has been included in the City's General Plan for Low Density Residential development since 1993, is within both Dublin's and DSRSD's Sphere of Influence and represents a logical extension of Dublin boundaries. There are no other proximate governmental agencies that can provide the requested range of level of service other than the City of Dublin. 5.17. LAFCo discourages the annexation of vacant land or the extension of urban services unless there is a demonstrated near term (within five years) need for services. Discussion: As indicated above, other properties in the City of Dublin that were recently annexed to the community are in the process of developing. The City of Dublin therefore believes hat there is a need to annex the Dublin Ranch North property at this time, as requested by the property owner and consistent with the Dublin General Plan. 5.18. Prior to annexation to a city or special district, the petitioners shall provide information demonstrating that the need for governmental services exist, the annexation agency is capable of providing service, that a plan for services exist and that the annexation is the best alternative to provide service. 1q HL!o Discussion: As required by this policy, the City of Dublin's application for annexation to LAFCo will be accompanied by a Plan for Services. The four proposed building sites are in the western portion of the site, proximate to approved residential development to the west. The location of the building sites minimize the distance that utilities would be extended from the adjacent development. The Project is therefore consistent with this Policy. 5.111. A proposed annexation shall be a logical and reasonable expansion to the annexing district. Discussion: The proposed action would compete the City of Dublin boundary to the east, where the easterly annexation boundary would extend to the Sphere of Influence. Also, the proposed annexation area lies within both the City of Dublin and DSRSD approved Sphere of Influence, which recognizes that the properties should be a part of Dublin. 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N� < a M ^ �� o o d � L ° tr cD J L Lmoo / ul I g O s c'4 I- I t7Sao II Ord n C II J / n N t74' pd a= oy0 II tn�dU O W I JW I ��z�o II pmjQ� aW z0 I O ^?N^ a Q ° wp t� _ �Q,N d' a°ZZW I a�^ a0 -<YN // I NZV Z �U z nZ I CN Z '-�O I ,, Z a- 'o dIQ-wW c�8.y Q t`'o°° �/ 00 \ y QfnfnlY OjWNO�i Y W� t�f Mp Z U �O �TA1I I ~JI,� \ z�a`c� \\ m Z "8Ma \i I LON2Ma \ En 8� �\ Ze$rn �. �I 0a 00 \ 00 `` p \ ca� � w x N �- I I Z U Q Q: \ o \ \\ YN x g r+Qo � / II Q Q =0_04 \\ n Z WU JZ ` \N z+ clA cl � °r J 11 �I <3tLu o II o w m �N Vla lY C-i Z II 31� of 440 11 i 10 ' • W b I (0) Z JFAJ Oj General Plan /Eastern Dublin Specific Plan Amendments, Stage 1 Planned Development Rezone, Stage 2 Planned Development Rezone Vesting Tentative Map Prepared fora Hong Yao Lin Hong Lien Lin Prepared by: MacKay & Somps RECEIVED November 2009 DUBLIN PLANNING Attachment 10 DUBLINRANCHNORTH ANNEXATIONAREA Table of Contents Application Forms/Project Reference Planning Application Form Initial Study - Environmental Information Form, Part I Project Reference Vicinity Map Aerial Photograph, Photo Key and Site Photographs General Plan/Eastern Dublin Specific Plan Amendment Project Description Existing and Proposed Land Use Comparison General Plan Amendment Eastern Dublin Specific Plan Amendment Stage 1 Planned Development & Stage 2 Planned Development Project Description Findings Statement Stage 1 Development Plan Stage 2 Development Plan Preliminary Landscape Plan /Street Sections Ownership and Maintenance Plan Land Use and Design Standards Permitted and Conditional Land Uses Site Development Standards Landscape and Open Space Standards Architectural Design Standards Vesting Tentative Map Project Description Title, Notes, Sheet Index, Details Site and Utility Plan Grading Plan 31- t qHh Table of Contents 318 O� qL�o CITY OF DUBLIN PLANNING APPLICATION FORM NOTE: Please discuss your proposal with Planning Staff prior to completing this form. All items on this form related to your specific type of application must be completed. Some of the items listed might not apply to your specific application. Please print or type legibly. Attach additional sheets, if necessary. If you are currently working with a Planner on a pre- application project, please schedule an appointment prior to submitting your application. I. TYPE OF APPLICATION: Pre - application Review [Any type] Sign/Site Development Review [SIGN /SDR] Conditional Use Permit [CUP] Master Sign Program [MSP /SDR] Site Development Review [SDR] X Planned Development Rezone [PD REZ] Variance [VAR] Rezone [REZ] X Tentative Subdivision Map [T MAP] X General/Specific Plan Amendment [GPA] II. GENERAL DATA A. Address/Location of Property: Fallon Road, approximately 1.5 miles north of I -580 B. Assessor Parcel Number(s): 985- 0028 - 003-02 C. Site Area 158 acres D. Zoning: Alameda County Zoning: Agriculture E. General Plan Designation: Rural Residential/Agriculture, Low Density Residential F. Existing/Proposed Use of Property: Cattle Grazing/Estate Residential and Open Space with Conservation Easement, Water Agency Tank Facility G. Existing Uses of Surrounding Properties: Medium and Low Density Residential, Open Space, Rural Residential/Agriculture. H. Within 1,000 feet of a military installation (Camp Parks)? No I. Military Notification Required?)? No III. AUTHORIZATION OF PROPERTY OWNER AND APPLICANT A. PROPERTY OWNER: In signing this application, 1, as Property Owner, certify that 1 have full legal capacity to, and hereby do, authorize the filing of this application. I understand that conditions of approval are binding. 1 agree to be bound by those conditions, subject only to the right to object at the hearings or during the appeal period. I further certify that the information and exhibits submitted are true and correct. (Note: All Property Owners must sign if property is jointly owned) W Company: Capacity: Phone:( ) Email: Fax:( ) Address: Date: B. APPLICANT (OTHER THAN PROPERTY OWNER): In signing this application, I, as Applicant, certify that 1 have obtained written authorization from the property owner and have attached separate documentation showing my full legal capacity to file this application. 1 agree to be bound by the conditions of approval, subject only to the right to object at the hearings or during the appeal period. I further certify that the information and exhibits submitted are true and correct. Name: Mr. James Tong Title: Authorized Representative Company: Email: (925) 463 -1666 Fax: (925) 463 -9330 Address: 4690 Chabot Drive, Suite 100, Pleasanton, CA 94588 P: \19317 -0 \office \Submittals \PD 1 \PAF -2.doc Name: Title: Authorized Representative Company: Dublin San Ramon Services District(DSRSD) Phone: (925) 828 -0515 Email: Fax: Address: 7051 Dublin Blvd. Dublin, CA 94568 Signature: Date: P: \19317 -0 \office \Submittals \PD 1 \PAF -2.doc -�Yo t yqo Application Name: Dublin Ranch North — Request for Annexation/Attachment, General Plan/Eastern Dublin Specific Plan Amendment, Stage 1 Planned Development Rezone, Stage 2 Planned Development Rezone, Vesting Tentative Map, and Development Agreement Initial Study (ENVIRONMENTAL INFORMATION FORM - PART 1) (To be completed by Applicant pursuant to City of Dublin Environmental Guidelines Section 1.6) Date Filed: rev. April 2009 GENERAL INFORMATION: 1. Name and address of authorized representative of property owner: Mr. James Tong, 4690 Chabot Drive, Suite 100, Pleasanton, CA 94588 DSRSD, 7051 Dublin Blvd. Dublin,CA 94568 2. Address of Project: 6582 Tassaiara Road, approximately 1.5 miles north of I -580 3. Name, address and telephone number of person to be contacted concerning this proj ect: Marty Inderbitzen Lisa Vilhauer Attorney at Law MacKay & Somps P.O. Box 1537 5142 Franklin Dr., Suite B Pleasanton, CA 94566 Pleasanton, CA 94588 (925) 485 -1060 (925) 225 -0690 4. List and describe any other related permits and other public approvals required for this project, including those required by city, regional, state and federal agencies: Site Development Review, Regional Water Quality Control Board NPDES Permit and Section 401- (Clean Water Certification 5. Existing Zoning District: Alameda County Zoning: Agriculture PA19317 -0 \office \Subm ittals \PD 1 \EIF -1.doc �Z� t � q 6. Description of Project: (Include site area, uses, size and number of buildings, parking, number of dwelling units, scheduling, and any other information necessary or helpful to understand project. This attached description must be complete and accurate. Exhibits or photographs should be identified and attached.) Dublin Ranch North Annexation Area is an approximately 158 acre residential and open space project. Four estate residential lots, totaling approximately 30 acres, will be surrounded by about 128 acres of open space that will be placed into a permanent conservation easement for the protection of wildlife. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. 7. Are the following items applicable to the project or its effects? Discuss below all items checked (attach additional sheets as necessary). Yes No X 1. Change in existing features of any bays, tidelands, beaches, lakes or hills, or substantial alteration of ground contours. _X 2. Change in scenic views or vistas from existing residential areas or public lands or roads. X 3. Change in pattern, scale or character of general area of project. X 4. Significant amounts of solid waste or litter. _X_ 5. Change in dust, ash, smoke, fumes or odors in vicinity. _X_ 6. Change in ocean, bay, lake, stream or ground water quality or quantity, or alteration of existing drainage patterns. _X 7. Substantial change in existing noise or vibration levels in the vicinity. _X_ 8. Site on filled land or on slope of 10 percent (10 %) or more. X 9. Use or disposal of potentially hazardous materials, such as toxic substances, flammables or explosives. _X_ 10. Substantial change in demand for municipal services (police, fire, water, sewage, etc.). X 11. Substantial increase in fossil fuel consumption (electricity, oil, natural gas, etc.). X 12. Relationship to larger project or series of projects. PM 9317 -0 \office \Subm ittals \PD 1 \EI F -1.doc '�Z d, t � �(D ENVIRONMENTAL SETTING: 8. Briefly describe the project site as it exists before the project, including information on topography, soil stability, plants and animals, and any cultural, historical or scenic aspects. Describe any existing structures on the site, and the use of the structures. If necessary, attach photographs of the site. See DEIR for Eastern Dublin GPA/Svecific Plan, pages 2 -2 and 2 -3 and Eastern Dublin Specific Plan, pages 5 and 6. Also refer to attached Photographs of affected land areas for data regarding existing site conditions. 9. Briefly describe the surrounding properties, including information on plants and animals, any cultural, historical or scenic aspects and the type of land use. Refer to the Eastern Dublin Specific Plan, pages 5 through 7, DEIR for Eastern Dublin GPA/Speciflc Plan, pages 2 -2. CERTIFICATION: I hereby certify that the statements furnished above and in the attached exhibits present the data and information required for this initial evaluation to the best of my ability, and that the facts, statements and information presented are true and correct to the best of my knowledge and belief. Dated: Signature James Tong Print Name Authorized Representative Title /Company Signature Print Name DSRSD Representative Title /Company PA19317 -0 \office \Submitta1s \PD 1 \EIF -1.doc 383 t +0 Discussion of applicable items relevant to the project as identified in Item 7. 1. Change in existing features of any bays, tidelands, beaches, lakes or hills, or substantial alteration of ground contours. Portions of the residential area will be graded to allow the provision of vehicular access and development envelopes. Approximately 10 acres of the 157.7 acre project site will be disturbed by grading. This includes approximately 7 acres to create the access road and the building pads and an additional 3 acres for remedial grading as recommended by the geotechnical engineer. 2. Change in scenic views or vistas from existing residential areas or public lands or roads. Four estates and an access road will be placed upon a hillside. 6 Change in ocean, bay, lake, stream or ground water quality or quantity, or alteration of existing drainage patterns. Portions of the residential area will be graded to allow the provision of vehicular access and development envelopes, thus changing water quality and existing drainage patterns. 8. Site on filled land or on slope of 10 percent (10016) or more. Site grading will create areas of fill and occur on slopes greater than 10% gradient. PM 9317 -0 \office \Submitta1s \PD 1 \EIF -1.doc u 11 �-, U o O H ono 0 0 N N w co z U ^ J O UJ o H z Z z r ~ LU LU ^ Z o wYa� Q o v w >r W S31VIDOSSV ISM NVIOOO -� oc W ' zIo •� .. � Z l I 44 a 0 Ic V LL ZV t� Hd N w N W_ O z 9". w Y O O w to w M > W_ w w Dublin Ranch North Annexation Area • November 2009 Dublin Ranch North Annexation Area Written Statement for a General Plan /Eastern Dublin Specific Plan Amendment Introduction The Dublin Ranch North Annexation Area is an estate residential and open space project comprised of two properties totaling approximately 157.7 acres within the Eastern Dublin General Plan Amendment area. The first property, the Dublin Ranch North Lin Property (formally known as the Redgewick Property) is 157.2 acres. The second property is a .5 acre parcel owned by DSRSD and consists of a Zone 3 DSRSD water tank and access road. There is no further development proposed on the DSRSD parcel. The property is currently within Alameda County, and is the last remaining development parcel within the Eastern Dublin Specific Plan area to be annexed into the City. The amendments are being requested to redesignate the uses from Low Density Residential and Rural Residential /Agriculture to Estate Residential and Open Space to reflect the placement of a conservation easement on the majority of the Dublin Ranch North property and the resulting residential densities. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. This General Plan and Eastern Dublin Specific Plan amendment submittal is being processed concurrently with a Stage 1 Planned Development Rezone, Stage 2 Planned Development Rezone, and Vesting Tentative Map applications; request for Annexation to the City of Dublin and DSRSD, a Development Agreement and a Pre - Annexation Agreement. The project site is located near the northerly end of Fallon Road, and is bisected by a tributary to Tassajara Creek referred to as the Northern Drainage and sits north of Dublin Ranch Area A. The site abuts Phase 4 of Silvera Ranch and Tassajara Crossings to the west, Casamira Valley to the north, and Alameda County (Doolan Canyon) to the east. Specific amendments to the General Plan and Eastern Dublin Specific Plan are included with this submittal and can be found in the following documentation. Pagel • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement LA a 2009 a. List the proposed changes to General Plan /Specific Plan designations and policies, as needed. Following are the primary reasons for the map and text changes. Please refer to the attached sheets for greater details of the changes to be made. 1. Redesignate and rezone the Rural Residential /Agriculture use to PD -Open Space. 2. Amend the Eastern Dublin Specific Plan to include Estate Residential, a designation permitted under the Dublin General Plan. 3. Redesignate and rezone Single Family Residential to PD- Estate Residential. b. Reasons for proposing General Plan /Specific Plan Amendment. The General Plan and Eastern Dublin Specific Plan currently designate the majority of the site to be Rural Residential /Agriculture (143.2 acres). This designation could affect the existing natural conditions on the property by not adequately protecting the sensitive environmental features on the site. The current development plan proposes to redesignate this land use to PD -Open Space. This would allow for the protection, management, and health of the environmental systems currently in place on the site and those to be added, while eliminating the one rural residential unit from the site. A conservation easement will be placed upon the Dublin North Property Open Space Parcel and will remain in perpetuity. 2. The Eastern Dublin Specific Plan residential land use categories experience a gap of densities between the different designations. Specifically, Rural Residential /Agriculture's density is only listed as 0.01 du /ac and then the density jumps to Single Family with a density range of 0.9 to 6.0 du /ac. This creates a density gap between 0.01 and 0.9 units per acre, which is where this project density proposal falls. The specific plan states that "In situations where policies or standards relating to a particular subject have not been provided in the Specific Plan, the existing policies and standards of the City's General Plan and Zoning Ordinance will continue to apply." This permits all use designations and policies under the General Plan to be applied, of which the designation Estate Residential, with a density range of 0.01 -0.8, is appropriate. The zoning for the residential component of this Project is proposed to be PD- Estate Residential. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. Page 2 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement Dublin Ranch North Annexation Area • November 2009 c. How will the General Plan /Specific Plan Amendment benefit the City of Dublin? 1. The proposed land use revisions will create a project that is compatible with existing site conditions. These amendments will enhance the natural environment by preserving sensitive environments and tributary corridors, and protecting certain animal species by providing natural areas that are placed under a conservation easement. 2. Land uses are arranged in a more appropriate pattern to relate to existing site conditions, environmental and infrastructure constraints, and City goals and policies. The proposed plan is more sensitive and functional because of this. 3. By adjusting the development area and densities on these properties, the resulting land plan will provide a physical and visual continuation of the open space and rolling hills in the East Dublin area. The lands upon which the transferred residential units are placed will be more suitable for development in terms of physical constraints and location. 4. The proposed project improves upon the current land use designations by considering more accurate and current topographic maps, surveys, and environmental concerns to determine the actual limits of development. d. Address each element of the General Plan and policy of an applicable Specific Plan of the City of Dublin and describe how each element/policy will be affected by the proposed amendment. Applicable General Plan Elements: Land Use Element • Revises and adjusts land use designations on project area. • Exchanges Rural Residential /Agriculture to Open Space on project site. • Reduces the number of residential units of this project and relocates to more appropriate sites. Parks and Open Space Element • Continues preservation of open space and natural resource policies. • Provides permanent open space area. • Preserves rolling hills. Environmental Resources Management - Conservation Element • Protects and creates riparian vegetation within tributary corridors. • Preserves and increases habitat values. • Preserves and enhances aesthetic resources. Page 3 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement Dublin Ranch North Annexation Area • November 2009 Eastern Dublin Specific Plan Policies: L1� Policy 4 -1: Maintain a reasonable balance in residential and employment - generating land uses by adhering to the distribution of land uses depicted in Figure 4 -1, Land Use Map. Proposed land uses are generally those depicted in Figure 4 -1. The proposed project creates an environmentally superior alternative to the Specific Plan. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. Policy 4 -5: Concentrate residential development in the less environmentally constrained portions of the plan area, and encourage cluster development as a method of reducing or avoiding impact to constrained or environmental sensitive area. Also consider the use of Transfer of Development Rights (TDR's) in areas designated as Rural Residential /Agriculture or Open Space. This plan proposes the relocation and concentration of residential development from an environmentally constrained site to ones less environmentally constrained. Lands where the units are transferred from, and not reserved for proposed residential uses, will be rezoned to Open Space. Proposed units are limited to the west facing hill on the project in the northwestern corner. Policy 4 -26: Maintain sufficient land for housing in reasonable relationship to jobs (employment generating uses) in the eastern Dublin area. Although the residential density and units designated for this site will be reduced, these units are not lost. Rather, they will be transferred to a more compatible site for development. Alternative sites within Dublin Ranch are closer to employment generating uses, services, and retail uses than the originally designated site on Dublin Ranch North Annexation Area. Policy 6 -1: Establish a continuous open space network that integrates large natural open space areas, stream corridors, and developed parks and recreation areas. The elimination of Rural Residential /Agriculture and the subsequent use of PD -Open Space ensures the provision, preservation and management of a permanent open space area and corridor that links to other eastern Dublin open space areas and to the City as a whole. Policy 6 -2: Locate development so that large, continuous open space areas /corridors are preserved. Avoid creating open space islands. Encourage single loaded streets in areas adjacent to open space, rural residential, and agricultural lands. See above comments to Policy 6 -1. Page 4 - General Plan /Eastern Dublin Specific Plan Amendments • Written Statement Dublin Ranch North Annexation Area • November 2009 Policy 6 -9: Natural stream corridors, ponds, springs, seeps, and wetland area f, as shown in Figure 6. 2, shall be preserved wherever possible... See above comments to Policy 6 -1. Policy 6 -10: Riparian and wetland areas shall be incorporated into greenbelt and open space areas as a means of preserving their hydrologic and habitat value... See above comments to Policy 6 -1. e. Describe how the proposal will be compatible with surrounding land uses, enhance the development of the general area, and create an attractive and safe environment. The Proejct is surrounded by a range of uses extending from urban to rural. To the south, Dublin Ranch Area A, Golf Course and Phase 1 are developed with low density residential, recreational, and open space uses. To the west are Silvera Ranch, a residential project under construction and partially occupied and Standard Pacific, an approved PD residential project. These projects at completion will be comprised of varying low and medium residential densities and open space uses. To the north is the Casamira Valley, an approved PD1 residential project, designated for residential and open space uses. To the east, Alameda County lands are currently being used for grazing and rural residential. The proposed project will continue and enhance these existing and future uses. Development of the project area will be harmonious with existing and future development. The site plan for the Dublin Ranch North Annexation Area adheres to the intent of the General Plan and the Eastern Dublin Specific Plan's goals and policies. This will ensure that the project will be compatible, both in terms of land use and physical design, with adjacent development. The proposed mix of estate residential development and preserved open space will naturally blend with the neighboring residential developments and open space areas to create a livable and cohesive project. Additionally, units will be removed from the ridgeline, preserving this important open space feature and view shed element. The following chart indicates the proposed land uses and densities for the project as compared to the currently designated land uses in the General Plan and Eastern Dublin Specific Plan. Dublin Ranch North Existing General Plan/ Eastern Dublin Specific Plan Land Use Proposed General Plan/ Eastern Dublin Specific Plan Land Use Gross Acres Units Gross Density Acres Units Gross Density Estate Residential - - - - -- - - - - -- - - - - -- 30.4 4 .13 Low Density Residential 16.8 67 4 - - - - -- - - - - -- - - - - -- Rural Residential/Agriculture 143.2 1 .01 - - - - -- - - - - -- I - - - - -- Page 5 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement Dublin Ranch North Annexation Area • November 2009 J l t ! 1D Open Space - - - - -- - - - - -- - - - - -- 127.3 - - - - -- I - - - - -- TOTAL 160.0 68 - - - - -- 157.7 4 1 - - - - -- The residential portion of the project is proposed as estate residential lots. These units will be designed to take full advantage of the natural features of the site while creating minimal impacts to these features. This will be evident in the juxtaposition of units to open space and topography, and site grading which will strive to follow the natural contours of the existing landscape. Dublin Ranch North properties are the last development parcels in the eastern portion of the City's Sphere of Influence and Eastern Dublin Specific Plan area that has not been annexed into Dublin. By undergoing this process, the project will complete the vision of the Eastern Dublin Specific Plan and Dublin General Plan. f. Discuss the physical suitability of the site for the type and intensity of the land uses proposed. The project site is physically suitable for the type and intensity of land use designations being proposed. The vast majority of the project area will be Open Space. This use takes advantage of the natural features of the site and will preserve and maintain them. A portion of the site is designated for Estate Residential. This development will be clustered on the west facing slope on the site, making use of existing, approved and logical infrastructure and vehicular access. With the reduced intensity of development, greater sensitivity can occur in siting and grading. Berlogar Geotechnical Consultants prepared a Feasibility Level Geotechnical Investigation report for the property. Based on their research, the document states that the proposed development is feasible if grading recommendations proposed in the report are followed. Further research by Berlogar found that no earthquake faults are mapped on the property. A Phase I Environmental Site Assessment prepared by Eckland Consultants in 2003 found that no hazardous materials exist on site or within the applicable radius for study. g. The potential of the property where the project is proposed located to contain a hazardous waste and substances site (pursuant to Government Code Section 65962.5). A Phase 1 Environmental Site Assessment has been conducted on the subject property by Eckland Consultants. According to the Assessment completed, no registered hazardous waste or substance sites are known to exist on the property, nor have any hazardous materials been discovered within or near the project site. A copy of this report has been submitted to the City and is incorporated in the Mitigated Negative Declaration prepared for the project. . Page 6 • General Plan /Eastern Dublin Specific Plan Amendments • Written Statement dZ _r cc ZZZ� aoaw Z0WZp �� p a ca m J UZ> U �WUW � Z O F m Q Z Z a O ^ ] I`I p w Q I Q �0ZCL W a J O zz b 4 tti1 U' W 0 2 m c w. •- cC rn N m c w. •- cC rn N O 3- O p y «+�raF■•�•.�f• -s•. �►.- •ate..- ■�- ■- t�.•.�...� p ■ ■ + � C i O p 11S a a i 2 �✓� •� c � �i � ! j � V CO \ C 1 C CO dP ■ lw • C ■ p � Z Q M i ! N tf ti v H N � N N � � 00 N O c wwa U COQ p CO � ��o � a = I V) ,g `- ■ M I i CN LO � Q aWJ �¢ � a V^i' W s I C � ac U � sxJ Z � � ! p N � 1 O p i co co L 'C i m FL Cl) >> Z � ! co c� i i o cc ch aci C9p � Q � � � w rn '+C�wN-9 o x > >� a xd a cc i/i � any cc M y O � C p Q w A) ca L4) N 3 om c p) C m 4 � 1 �0 6 ca SO 4) CL .2 Ufa � _4) J cc U I tm � a V) a 4) C S2 `•`_ �++ mod, r n U) Xpp m 3 �D Cl) I cN m�3� -�t� 0Z mI � I d c Z Wn :3 c cu w a J V d N �I i C J Ow -j W Cl) � 0 W Cl) I cu W 0�w ■ i 0 ■ I ' o I n r C x�d o J a N I M N H N � N N � � 00 N O wwa U COQ CO � j � U � Q � V^i' W C � Dublin Ranch North Annexation Area Dublin General Plan Amendment The following are proposed amendments to the Dublin General Plan: CHAPTER 1: BACKGROUND Section 1.8.1 Land Use Classifications, Eastern Extended Planning Area (page 9). Add to the Residential category: Residential: Estate (0.01 -0.8 units per -gross residential acre). Typically ranchettes and estate homes are within this density range. Assumed household size is 3.2 persons per unit. Figure 1 -1a Update Figure to change Dublin Ranch North Property from Rural Residential /Agriculture and Single Family to Estate Residential and Open Space. Figure 1 -2 Remove portion of Rural Residential /Agricultural lands within proposed Project Area. CHAPTER 2: LAND USE AND CIRCULATION: LAND USE ELEMENT Update in EASTERN DUBLIN EXTENDED PLANNING AREA: Table 2 -1: Amend Table 2 -1 by: Add Estate Residential use with 30.4 acres and 4 units. Add 127.3 acres to Open Space. Remove 16.8 acres and 3 units from single family. Remove 143.2 acres and 1 unit from Rural Residential /Agricultural. Appendix A Add this project to list of Amendments and Approvals: Dublin Ranch North, Resolution No., Date Adopted, and GP updated. PA 19317 -0 \office \Submittals \GP - SPA \GPA- DRNo -1- REV- 20080912.doc -00 M o 70 N N O ..' L .I..i U- 0 a..+ c N E m Ln m 0~ Q. � Q W W V z W C3 Q •• 9 w T 4— M r 6 All a a AM I fl y1 -1 0 V fl U till �'. 0 co m ti L atii Q c c o C m R C CL 0 rn v c u v o 0 J C C O A @ GJ G C C m � vfL' W 0- > v ti C E O 1 J d V7 w CK GJ w w w p1 v m 0 a`, v o 0 0 C E a, ti c — 4 G O O ��aoa�oo C cu H v m G v m v m 3 � u1 N v \ p � M Ln a, p o .p i0 �, + .. _ o E T v ti 'f ti c ' (u v �p Co � °— c O ti c a v v z- w �_, E LL W Q In N v W J J V1 01 v V_ v O 01 0 v O m 0 ti 0 c 1�- M Q O E v a`, E m m v ix ° E � � 7 _ E ti N N N E cm: U '00 Q1 E v c y C 0 t V �_ v_ E V O a CL rn O O O kA LM y= E U v Ma 4) CL v C v C 1 3 `^ '^ a�i x v E0 12 ex Z l7 u 5 m m o U v U ti Q V) C a o v a � Q1 �- 70 ti O 'co C u a 2S M a m, U N O t t y c 1z V1 01 a cu 0. O L vi m a �°, z z U- vvi , , , Q. �.__. ®i IN D i cc a L �A ° a W. a A > gg gag �^ Ica lu s.�� gip a C0 C �o M bW °� a g oa � !„ 0'8 U. o 0 d 49 a 0 a� ;wow o o °ov � CR t u AQ.� 0 0 Q w cu 3Ge + ��o Dublin Ranch North Annexation Area Eastern Dublin Specific Plan Amendment The following are proposed amendments to the Eastern Dublin Specific Plan: CHAPTER 2: PLANNING AREA DESCRIPTION Figure 2.4 Owner Update to reflect current owner of Dublin Ranch North Property from Redgewick to Lin. Add DSRSD as owner. Update acreage of Dublin Ranch North Property to 157.2 acres. Update acreage of DSRSD Parcel to 0.5 acres. CHAPTER 3: SUMMARY 3.3.3 Land Use Categories Residential Change language to read: The Residential land use category has six classifications: High Density (HDR), Medium - High Density (MHDR), Medium Density (MDR), Single Family (SF), Estate Residential(ER), and Rural Residential /Agricultural (RRA). CHAPTER 4: LAND USE Table 4.1: LAND USES Amend table 4.1 by: Add Estate Residential use with 30.4 acres and 4 units. Add 127.3 acres to Open Space. Remove 16.8 acres and 3 units from Single Family. Remove 143.2 acres and 1 unit from Rural Residential /Agricultural. Table 4.2- POPULATION AND EMPLOYMENT SUMMARY Amend Table 4.2 by: Add Estate Residential Use with 4 units. Remove 3 Units from Single Family and 1 Unit from Rural Residential /Agricultural 4.8.1 Residential Add: Estate Residential (0.01 -0.8 units per -gross residential acre). Typically ranchettes and estate homes are within this density range. Assumed household size is 3.2 persons per unit. P:\ 19317 -0 \office \Submittals \GP - SPA \EDSPA- DRNo- I- REV20080912.doc , too Table 4.10: Amend Table 4.10 by: Add Estate Residential use with 30.4 acres and 4 units. Add 127.3 acres to Open Space. Remove 16.8 acres and 4 units from Single Family. Remove 143.2 acres and 1 unit from Rural Residential /Agricultural. Figure 4.1— Update figure to change Dublin Ranch North from Single Family and Rural Residential to Estate Residential and Open Space. CHAPTER 5: TRAFFIC AND CIRCULATION 5.1.1 Existing Roads Figure 6.1 — Update figure to show Project's change to Estate Residential and Open Space uses. Figures 6.2 and 6.3 — Update to show current environmental information on the Project site. APPENDIX 3: Foothill Residential Table Add Estate Residential use with 30.4 acres and 4 units. Add 127.3 acres to Open Space. Remove 16.8 acres and 3 units from Single Family. Remove 143.2 acres and 1 unit from Rural Residential /Agricultural. APPENDIX 4 Change Owner name to Lin from Redgewick. Add Estate Residential with 30.4 acres and 4 units. Add Open Space with 126.8 acres. Remove Single Family Residential and Rural Residential /Agri cultural. Add DSRSD to Owner list: Add Open Space with .5 acres. P: \19317- 0 \ollice \Submittals \GP - SPA \EDSPA- DRNo- I- REV20080912.doc 2 o Z _ r N (i M N �p d N NO rJ N o■r. 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U) 4) < a uj cn E� -2 � 0 75 ra cr co Z m Z (L W L) LLJ a G.) U) 4) < a uj cn E� -2 � 0 .W Dublin Ranch North Annexation Area - November 2009 Dublin Ranch North Annexation Area Rio l 0� 1-1 qa Stage 1 and Stage 2 Planned Development Rezones Written Statement and Findings Introduction The Dublin Ranch North Annexation Area consists of approximately 157.7 acres within the Eastern Dublin General Plan Amendment/Specific Plan area. The Project Area is comprised of two properties, the 157.2 acre Dublin Ranch North Lin parcel (formally the Redgewick property) and the .5 acre DSRSD parcel. At this time, the project site is a part of Alameda County, and is outside the current boundary for the City of Dublin. The proposed project includes a request for a General Plan /Eastern Dublin Specific Plan Amendments, Planned Development Rezones (Stage 1 and 2), Vesting Tentative Map, Development Agreement, request for annexation to the City of Dublin and DSRSD and a Pre - Annexation Agreement. Dublin Ranch North is located just north of Dublin Ranch Areas A and D, east of the Standard Pacific and Silvera Ranch properties, south of the Richey & Hunter (Casamira Valley) property, and west of the Doolan Ranch West property. Except for Dublin Ranch and the Silvera Ranch projects (which are developed or under construction), these lands are currently used for cattle grazing and rural residences. However, both the Ritchey and Hunter and Standard Pacific properties are currently undergoing or recently underwent processes to rezone, annex, and develop the properties for residential neighborhoods. Annexation of the Dublin Ranch North parcels will bring the last of the unincorporated lands of the Eastern Dublin Specific Plan area into the City. Planned land uses include estate residential density uses on the northwestern corner, and open space on the remaining 127.3 acres. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. Existing Site Conditions and Land Uses The Dublin Ranch North Lin property is currently vacant and is used for cattle grazing and as environmental mitigation sites for earlier phases of Dublin Ranch. The 0.5 acre DSRSD parcel has a Zone 3 DSRSD water tank and access road built on it. No further Page 1 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings IF Dublin Ranch North Annexation Area • November 2009 L40o� 0� OqD development is proposed on the DSRSD parcel. The properties are not under a Williamson Act contract. The majority of the Dublin Ranch North – Lin property has been designated as biological mitigation lands for earlier portions of Dublin Ranch, and a conservation easement is being placed upon these lands. No residence or other structures occur on the property. The property has a number of unique physical features. The western portion of the site consists of a fairly large ridge that runs in a north -south direction separating the 30.4 acre site proposed for development of the 4 lots from the 127.3 acre site designated for mitigation purposes and the DSRSD parcel. East of the ridge, the landform drops gradually into a valley with an unnamed tributary referred to as the "Northern Drainage" that flows to Tassajara Creek. This tributary flows through the center of the project in a southwest direction. A large stock pond sits midway along the drainage. The width and depth of the tributary varies along its length. A few eucalyptus and other trees grow along the edge of the tributary. The hillsides and valley lands are covered primarily with non - native grassland vegetation. The lowest elevation of the project area is approximately 560 feet above sea level, while the highest elevation is at approximately 890 feet. Much of the Dublin Ranch North property is comprised of rolling foothills, with slopes of less than 30 %. Slopes greater than 30% do, however, appear along the central valley's hillsides. Approximately 126.8 acres of the property will be placed in a conservation easement as part of the Northern Drainage Conservation Area. The .5 acre DSRSD parcel is proposed to remain unchanged. The remaining approximate 30.4 acres of the Project drains away from the Northern Drainage and is not within the protected area —this is the area designated for development. A Feasibility Level Geotechnical Investigation was completed for the Development portion of the Dublin Ranch North property by Berlogar Geotechnical Consultants on May 18, 2009 as well as a follow -up study on October 1, 2009. A Biological Resources Assessment was prepared by WRA on June 2, 2009 to evaluate the development area of the site for biological resources. Please refer to these reports for additional information on the Property. Federal Emergency Management Agency (FEMA) FIRM map Community Panel Number 060001 C0326G, dated revised August 3, 2009 for Alameda County (unincorporated areas), indicates that the properties do not lie in the 100 -year flood zone. Eckland Consultants conducted a Phase 1 environmental site assessment of the Dublin Ranch North – Lin Property to investigate the potential for on -site hazardous wastes or substances. Eckland's assessment indicates that the property is not known to contain hazardous wastes or substances. The study concluded that the property has a low likelihood that any hazardous or toxic substances exist on the site. Eckland recommends no additional investigation at this time. Page 2 Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings VW Dublin Ranch North Annexation Area • November 2009 LAOSt+) Except for the proposed lots, most of the property is hidden from view from adjacent properties and arterial streets. Ridgelines along the boundary of Dublin Ranch Areas D and A to the south, and along the Richey and Hunter parcel to the north conceal most views of and into Dublin Ranch North Annexation Area. It is only from certain vantage points along Fallon and Tassajara Roads that limited views into the central valley or onto the first range of western facing hills are available. Proposed Land Uses and Development Concept The Dublin General Plan and Eastern Dublin Specific Plan propose that the entire site be rural residential /agriculture with the exception of a low density neighborhood that starts on the western edge and arcs upward into the site along the westernmost ridgeline. The proposed PD Rezones modify the General Plan and Eastern Dublin Specific Plan by refining the land plan to respect the introduction of the mitigation lands, utility service requirements, and create a project unlike any other in the City. The Eastern Dublin Specific Plan assumed the development of 68 units on the Dublin Ranch North property. The Applicant is proposing to cluster development of 4 units in the northwestern portion of the project site, which results in the reduction of 64 units on the site. The applicant has proposed that the unused 64 units be available for use in other portions of Dublin Ranch. Once an appropriate site for the location of these 64 units has been identified, an analysis of the site will determine what, if any, additional amendments and studies will be required before the units may be approved for final location. Due to the resulting density, the residential area will be rezoned from Low Density to Estate Density Residential. Approximately 80% of the Project will remain undeveloped and will remain as natural open space. The following chart indicates the proposed Stage 1 and Stage 2 PD Rezone land uses and densities for the project, and as currently represented in the General Plan and Eastern Dublin Specific Plan. Dublin Ranch North Proposed PD Rezone Land Use Plan (Net and Gross Acreage Calculations are the same) Existing General Plan/ Eastern Dublin Specific Plan Land Use Plan Acres Units Density (du /ac) Acres Units Density (du /ac) Estate Residential 30.4 4 .13 - - - Low Density Residential - - - 16.8 67 4 Rural Residential / Agriculture - - - 143.2 1 .01 Open Space 127.3 - - - - - TOTAL 157.7 4 1 N/A 160.0 68 N/A The four units are intended to provide a county estate character of homes on lots ranging from approximately 4.5 acres to approximately 13 acres, with designated Page 3 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings W Dublin Ranch North Annexation Area - November 2009 t. q q 13 building envelopes. Development will be designed to take full advantage of the natural features of the sites and to avoid impacts on environmental resources. Residential dwelling units are a compatible use adjacent to a managed environmental area and development areas will be located away from the Northern Drainage. Additionally, the configuration and boundary of the residential parcel has been modified to not extend into the conservation easement area, plus keep all development below the Eastern Extended Planning Area development elevation cap (770') and within DSRSD's service area (up to 770'). The majority of the site that is designated as open space will be a permanently managed environmental area. These lands will be placed in a conservation easement and will be managed consistent with a Mitigation and Monitoring Plan approved by environmental agencies. Access and Circulation Access into the property will be provided from a public street, Cydonia Ct. in the Silvera Ranch property, which has access from both Fallon Road and Tassajara Road. From this cul -de -sac, a single residential driveway will serve the four Dublin Ranch North units. The site design and street lengths illustrated on the PD Rezone site plans and Vesting Tentative Map have been reviewed and approved by the Alameda County Fire Department, who provides service to the City of Dublin. Proposed Phasing Approach The Project will be developed in one phase. Timing for the phasing of this project will depend on market demand and the provision of access and utilities from adjacent properties. All necessary site grading, storm drainage, sewer, and water improvements will be provided in a timely manner and concurrent with development. Utility Services Dublin San Ramon Services District (DSRSD) will provide water and wastewater to the Project. No recycled water service is required of the project. The properties are not currently within DSRSD's service area, but is in DSRSD's Sphere of Influence and will be annexed into DSRSD's service area concurrently with the annexation of the properties to the City of Dublin. These services are planned in accordance with the DSRSD Eastern Dublin Facilities Master Plan (and /or subsequent revisions) that includes the proposed project area. Existing on- and off -site water storage reservoirs and pumping stations will provide water service for the Project through buildout. Water mains will be located in streets. The Master Infrastructure Map included as part of this submittal is based on the most current study provided by DSRSD and differs only slightly from what was shown in the Eastern Dublin Specific Plan's conceptual backbone and facilities system plans. Final locations and sizing of these facilities will be in accordance with the standards and recommendations of DSRSD. Utility connections will be made to adjoining downstream properties which have had utilities Page 4 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings rh.4 Dublin Ranch North Annexation Area • November 2009 X105 b LI�ID sized to handle this project. Tassajara Road and Fallon Road are the main utility corridors for the area. Sewer service for the Project Area will require connection to DSRSD's existing sewer system and sewer treatment will occur at DSRSD's treatment plant. Final sizing and location of sewer facilities will be determined in conjunction with DSRSD. An on -site bio -swale will collect storm runoff, treat it and will direct these flows to the existing main lines of adjacent development. The actual sizes and locations of proposed storm drain facilities will be determined with each incremental project's improvement plans. As the Project Area is within the Zone 7 Drainage Study Area, its expected flows are anticipated and planned for by Zone 7 and the City of Dublin and the project's facilities will be sized appropriately. A strategy for maintaining the quality of storm water runoff for the Project, once development occurs, will be determined in conjunction with the City of Dublin. In accordance with the Regional Water Quality Control Board's Alameda County Municipal NPDES permit for stormwater, a series of best management practices (BMPs) will be designed to mitigate the introduction of pollutants associated with development into downstream watercourses. The primary focus of water quality design is to direct "first flush" runoff, typically containing the highest pollutant load, into surface treatment facilities. In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar determined that there are no landslides within the development area. Development in hillside areas is carefully regulated under the Eastern Dublin Specific Plan to insure that hazardous hillside conditions are avoided or remedied. The Federal Emergency Management Agency (FEMA) FIRM community panel map 06001 C0326G, dated revised August 3, 2009 for Alameda County does not indicate flooding or flood zones on the property. Inclusionary Zoning Ordinance Dublin's Inclusionary Zoning Ordinance requires new residential projects that provide 20 units or more include 12.5% affordable product to those of very low, low, and moderate income or pay an in -lieu fee which would allow the City to facilitate construction of such housing. As this project provides only four (4) units, this project is exempted from complying with the Inclusionary Zoning Ordinance. Benefits and Costs This project will allow for the construction of residential units as anticipated by the Eastern Dublin Specific Plan and General Plan, increasing the assessed value of the City. Future residents will strengthen the market for adjacent commercial uses projected to occur in accordance with the Eastern Dublin Specific Plan. This, in turn, will increase sales tax revenue for the City of Dublin. Page 5 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings w Dublin Ranch North Annexation Area • November 2009 L1 D(a o f LA i 0 The provision of a large extent of permanent open space and habitat will contribute to the rural character of the City and provide a visual amenity to residents and visitors, while also preserving the natural environment. This project would preserve local ridgelines and the natural character of the area, providing a psychological and emotional respite from the adjacent neighborhoods. All infrastructure required for development of the proposed project and all capital facility costs will be paid for by the project proponents as development proceeds. As is typical of development requirements in Dublin, project proponents will dedicate land required for roads, construct roads, and contribute funds as required through the City's Traffic Impact Fee program. School fee and park in -lieu fee programs will, likewise, be complied with. Furthermore, normal expenditures for City services (fire, police, recreation, general administration, etc.) will be compensated by the development through required fees and property tax revenues. It is anticipated that property tax revenues, along with increased local sales tax attributed to the Project, will cover the public service costs. Page 6 - Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings W Dublin Ranch North Annexation Area • November 2009 Findings *1 '+ qqo A. The proposal will be harmonious and compatible with existing and future development in the surrounding area. The project will be harmonious and compatible with existing and future development and open space plans. The site plan for the Dublin Ranch North Annexation Area Project adheres to the General Plan's and the Eastern Dublin Specific Plan's goals and policies. This will ensure that the project will be compatible, both in terms of land use and physical design, with adjacent development. B. The site is physically suitable for the type and intensity of zoninq districts being proposed. The site is physically suitable for the type and intensity of zoning districts being proposed. The vast majority of the project area will be undeveloped to recognize the natural features of the site and to preserve and maintain them. A small portion of the site, approximately 20 %, will be developed as estate residential. This development is isolated to the northwestern west facing hill on the site, and will make use of adjacent logical vehicular access point from Cydonia Ct. This development pattern is similar to that designated in the General Plan and Eastern Dublin Specific Plan (EDSP), but has been refined to respect the environment and infrastructure requirements, while reducing the density of development. A tributary to Tassajara Creek, referred to as the "Northern Drainage" runs through the central portion of the site. Avoiding this corridor and the lands designated as conservation lands will ensure that the project will not adversely affect the environment and will provide prolonged stability for wildlife and their habitats. In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar determined that there are no landslides within the development area. Berlogar Geotechnical has determined that there are no faults located on the site per available record surveys. No portions of the site are within the 100 year flood area per FEMA's Firm Map No. 06001 C0326G, dated August 3, 2009. No hazardous materials exist on the property. C. The proposal will not adversely affect the health or safetv of persons residing or working in the vicinity, or be detrimental to the public health safety, and welfare The proposed project is consistent with the General Plan and Eastern Dublin Specific Plan's ordinances for public health, safety, and welfare. The project is not anticipated to produce noxious odors, hazardous materials, or excessive Page 7 • Stage 1 and Stage 2 Development Plan Rezones • Written Statement and Findings Dublin Ranch North Annexation Area • November 2009 CADV + MD noises. There are no landslides present within the development area. According to FEMA firm map panel No. 06001 C0326G, dated revised August 3, 2009, the property does not lie within the 100 -year flood zone. The proposed development project is not anticipated to adversely affect the health or safety of persons residing or working in the vicinity, nor is it detrimental to public health, safety or welfare. Development in hillside areas is carefully regulated under the Specific Plan to insure that hazardous hillside conditions are avoided or remedied. Additionally, no hazardous materials have been found to exist on the property. D. The proposed uses for the site are consistent with the elements of the City of Dublin General Plan and the Eastern Dublin Specific Plan. This Planned Development Rezone is consistent with the intent of the General Plan Amendment and the Eastern Dublin Specific Plan Land Use Plans, and the minor differences will be amended in the General Plan and Eastern Dublin Specific Plan for consistency. E. The oroiect satisfies the purpose and intent of a "Planned Development" as outlined in Chapter 8.32 of the Municipal Code. • The site will be planned as a comprehensive and distinct project and will have development and design standards tailored to the specific needs of the site. • The proposed project's design will incorporate flexibility and diversity in the development of the property by providing a combination of residential and open space uses. • The project proposes a mix of uses which, when compared to the General Plan and the Eastern Dublin Specific Plan, is consistent with the intent of those documents. • The project protects the integrity of the residential and non - residential areas of the City of Dublin. Approximately 80% of the project area has been retained as open space, and will be maintained in perpetuity in a conservation easement protecting the sensitive and environmentally attractive features of the site. Residential uses are clustered in the west facing hill on the site so as to minimize site grading and maintain the character of the area. • The proposed project will be designed to blend with the natural features unique to the site through the use of site design and planning. This will Page 8 • Stage 1 and Stage 2 Development Plan Rezones - Written Statement and Findings Dublin Ranch North Annexation Area •November 2009 identify the site as a project whose offerings exceed what is available from conventional development. • This project will enhance the existing environment, offer coordinated and coherent housing opportunities, and create desirability beyond what currently exists on the property. The proposed project will become an asset to the City of Dublin. 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I PFA 0 45 WE 'A 19:14I 111MIANSIANNA MA MA 1110 OF IMIN, IF A 1OWN MA 11 INS 111 WIN 11 WIN Owl Im .WA,LWA,hV,AF 111WOMMAINAMA401 IF, MWIF MOF MA FAOIFA ForeAMAIRWA am OWN ILWA mAl mA kwA 'WAP IN LWA, MA N®R OWIF IVA SE, IN IS IVA IMM OWN INS MA awl IVA IVA awl I IVA dft IVA IVA Owl fill IVA INE MA NO MA ; L FA MA L A MA A M Nl� IVA Owl I OWN I NO Cl CH Mil Owl IWO INVA MONSOON IN M VlAr OWN WA WIF 9 OWN ME ®RNSIOWN 11 Owl NO WIS t�o 4- 1*-10 DUBLIN RANCH NORTH LAND USE AND DESIGN STANDARDS The Dublin Ranch North Land Use and Design Standards are designed to provide guidance for the homeowner and their architect and landscape designer. The Dublin Ranch North Property is designed as a unique neighborhood for Eastern Dublin as four estate lots on 30.4 acres. The development is designed to allow for custom estate homes in a rural atmosphere. These design guidelines are created to preserve the character of the site, but also allow creativity and quality of design in architecture. The project is designed to be a small community conforming to the existing site as well as the surrounding area. The overall theme will continue and enhance the rural character of the site as well as the adjacent area. The Standards are not designed to be overly restrictive or limiting, but instead to enable a livable and diverse environment that is enjoyable and interesting. Each lot of the Dublin Ranch North Project will individually obtain Site Development Review approval from the City of Dublin's Planning Commission for the architectural and landscape design of each lot. The City of Dublin will use these guidelines to determine if the architecture and landscaping is consistent with the Planned Development. Page 1 • Land Use and Design Standards 14 � 15 6� °-� L-�o DUBLIN RANCID NORTH PERMITTED AND CONDITIONAL LAND USES PD ESTATE RESIDENTIAL Animal Keeping including horses and other large animals Community care facility /small (permitted if required by law, otherwise as conditional use) Emergency Vehicle Access Roads Garage/ Yard Sale Home occupation in accordance with Chapter 8.64 of the Dublin Ordinance Private recreation facilities such as tennis courts, pools, etc. Single Family dwelling Small family home day care per Chapter 8.08 of the Dublin Zoning Ordinance Open Space Water Quality and retention facilities Similar and related uses as determined by the Community Development Director Family Day Care Home /Large (up to 14 children) Horse Stable / Riding Instruction Animal Board & Care Second dwelling units not in coformance with Section 8.80 of Dublin Zoning Ordinance Accessory Structures and Uses are permitted as long as they follow the Design Standards as set forth in this document (Page 19 - Accessory Structure) (Page 4 - Setbacks). Any issue not covered by these guidelines will follow Section 8.40 of the Dublin Zoning Ordinance. Second units are permitted as long as they follow the Design Standards set forth in this document. Any issue not covered by the PD standards will follow Section 8.80 of the Dublin Zoning Ordinance. Temporary construction trailer Tract and sales office /model home complex Page 2 • Permitted and Conditional Uses DUBLIN RANCH NORTH PERMITTED AND CONDITIONAL LAND USES PD OPEN SPACE Conservation Areas: Agriculture and grazing Streams and drainage protection corridors Wildlife habitat preservation areas Public Water Tank Facilities and associated facilities Paving or otherwise covering of the Conservation easement with concrete, asphalt, or any other impervious paving material. Grading, filling, dumping, excavating, draining, dredging, mining, drilling, removing or exploring for or extraction of minerals, loam, sands, gravel or other material on or below the surface, altering the surface or general topography, including building of roads, or construction of permanent structures except as provided in the Conservation Area Management Plan or the Conservation Easement or as approved by the Service, Regional Board, or Department. Page 3 • Permitted and Conditional Uses DUBLIN RANCH NORTH SITE DEVELOPMENT STANDARDS Estate Residential Maximum Lot Coverage (') 10% Maximum Building Height (6)(7)(8) 38' Maximum Stories (Z) 3 Minimum Front Setbacks (A)(B)(D)(a)(5) Living Space 20' Porch or Balcony 15, Front Facing Garage 25' Swing -in Garage 20' Minimum Side Setbacks (A) (B) (c) (o) (a) (5) 10, Minimum Rear Setbacks (A) (B) (c) (o) (3) (4) (5) 20' Other Requirements Accessory Structures Setbacks (c)(o) Parking Spaces Required Per Lot 2 Covered and 1 guest Notes for Site Development Standards (A) Front Setbacks are measured from the edge of pavement of the Private Driveway. Rear and Side Setbacks are measured from the property line. Main Residential Buildings to be located within the primary building envelope. (B) Encroachments include items such as, but not limited to, roof overhangs, air conditioning condensers, entry stairs, exterior building stairs, porches, chimneys, bay windows and media centers may encroach up to two feet or more into the required setback provided there is a minimum of 36 inches of unrestricted access on one side of the building. Air conditioning units cannot be placed in the front yard. All utilities are to be screened from public view via walls, enclosures, roof placement, etc. (C) Setbacks for accessory structures shall be in accordance with the building code in effect at the time of construction /installation. Noise generating uses such as pool and spa equipment shall be acoustically screened or located outside the setback area. (D) Accessory Structures shall be built within the building envelope and follow the same setbacks as the principal strucutre. Maximum lot coverage regulations are intended to establish maximum lot area that may be covered with buildings and structures. Building and structures include all land covered by principal buildings, garages and carports, permitted accessory structures, second units, covered decks and gazebos, and other enclosed and covered areas; but not standard roof overhangs, cornices, eaves, uncovered decks, swimming pools, tennis courts and paved areas such as walkways, driveways, patios, exterior stairs, uncovered parking areas or roads. Page 4 • Site Development Standards Dublin Ranch North • October 2009 q i? o� �qo 2. Subject to Building Code requirements for access. External retaining walls up to four feet high may be used to create a level usable area. Walls over 30 inches in height are subject to safety criteria as determined by the Building Official. 4. Setbacks subject to review and approval of Building Official for Building Code and Fire Code issues. 5. On grade stairs and approaches can be located within setbacks. 6. Building Height for a flat pad is measured as the distance from the adjacent ground surface to the perpendicular point of the roof edge. Building Height for a split pad and sloped lot is measured as the distance from the finished grade to the perpindicular point of the roof edge. - - -- - -- FINNED GRADE FATED GRADE 7. Buildings may not project over the north -south ridgeline running along the eastern portion of the estate residential parcels. Accessory Structures shall be a maximum of 15' unless it is a barn, which can be 2 stories, if the upper level is storage of hay and agricultural materials, or if it is a detached garage with a living unit above. These structures shall be a maximum of 38'. TYPICAL SETBACKS /BUILDING ENVELOPE Page 5 • Site Development Standards DUBLIN RANCH NORTH LANDSCAPE AND OPEN SPACE DESIGN STANDARDS • Continue the natural atmosphere of the existing and surrounding properties. While natural landscaping is encouraged at the peripheries of the lots, residents are permitted to blend the natural with more ornamental planting surrounding the home. • Provide an entry to the project. • Create a distinct character to the neighborhood. • The open space areas within the project will provide a smooth transition between the residential lots and the surrounding properties. Page 6 • Landscape and Open Space Design Standards Dublin Ranch North • October 2009 Ritchey & Hunter Page 7 • Landscape and Open Space Design Standards Dublin Ranch North • October 2009 ENTRY SILVERA RANNC H LO SILVERA RANNT H MAILBOXES/ GATE ENTRY GATE �- PRIVATE DRIVE LANDSCAPING SECTION A -A The entry to the Dublin Ranch North neighborhood is located off of Cydonia Court in the Silvera Ranch Residential Development. The intent of the entry is to provide a private access to the estate homes. The entry area is defined as the area that is within the Silvera Ranch Property. The entry may have a gate that will provide access to the private driveway for residents, their guests and service providers. ENTRY • The entry will be a driveway entrance off of Cydonia Ct. at 20' in width. S of landscaping will be provided on either side of the entry driveway. GATE • Agate may span across the 20' Private Driveway. • A minimum 6' fence will extend from the gate to the property line in the same material and height as the gate. • The gate will be 6' in height and a metal material. • Visitor access will be provided by a Gate Call Box located to the North side of the driveway. • The gate will include a knox box for Fire and Police Access. • Gate design shall allow 20' clear across access drive for vehicle passage. MAILBOXES • The mailboxes should match in style and color to the Gate Call Box. ENTRY MONUMENTATION • If provided Entry monumentation /signage shall be placed within the F on either side of the drive. • Entry monumentation shall blend with the gate and mailboxes to create a distinct character for the Project. Page 8 • Landscape and Open Space Design Standards Dublin Ranch North • October 2009 LANDSCAPING t �q • 5' of Landscaping will be provided on either side of the Private Driveway entrance. • The landscape strip will be planted with a hydroseed mix or with low water plantings. PRIVATE DRIVEWAY The private driveway will provide access from Cydonia Ct. to the four lots of the Dublin Ranch North Neighborhood. The landscaping along the Private Driveway will be planted to form natural groves and will blend with the existing and surrounding properties. • The Private Driveway will be 20' in width. • A bioswale will be provided on the eastern side of the driveway to treat storm water runoff from the site, as grades permit. • Large Canopy Trees will be planted in informal clusters on the eastern side of the driveway at the time of the main residence construction. • Provision of landscaping other than the large canopy trees and the bioswale will be the responsibility of the homeowner. • Three parking bays with 5 parking spaces total will be provided along the eastern side of the private driveway. The parking bays will be built with gravel and overlaid on the area that the bioswale runs. The bioswale will terminate at an inlet, and flow through a pipe in these locations before being released on the other side of the parking bay. A 1' Swale behind the parking bay will be provided for storm water collection, and will flow into the bioswale. iI. I MM�TE DRIVE ETMCK BKXYWALE a SECTION B -B i1JR I t 0__, 00 e _ ia 7N1 KBYRI E SECTION CI -C Page 9 • Landscape and Open Space Design Standards Dublin Ranch North • October 2009 The bioswale is designed to collect and treat storm water on site. The bioswale is located to the east side of the private driveway. The private driveway will be sloped to drain into the bioswale, as well as some drainage from unit roofs and yards where feasible. The storm water will be treated through the bioswale and then enter the storm drain line through catch basins at each property line. The Project storm drain line will then connect to the storm drain stub provided in Cydonia Ct. Landscaping within the bioswale shall be native or other adaptable plants that can take high water intensity, as well as be drought tolerant in the warmer months. Private Lot landscaping should complement the natural environment of Dublin Ranch North. Some portions of the lot may be too steep to alter or have existing vegetation that would be desired to be maintained and preserved. These areas should be kept in their natural condition if possible. Garden design elements such as arbors, decks, paving, fences and walls should complement the environment and architecture. LANDSCAPE DESIGN: The landscape design surrounding the home is permitted to be more ornamentally intense. The landscaping should blend from ornamental to more natural as one moves away from the building envelope. • All paving materials for walks, patios, courtyards and decks shall complement the architectural style of the home. • Required street trees must be planted, irrigated, retained and maintained in good health by the homeowner. • A maximum of 40' along the lot frontage can be a paved surface; this can be used for a driveway, entry walk, etc. Asphalt driveways and entry walks are not permitted. • A maximum of 30% of the front yard landscape area may be planted in lawn. Shrubs and ground covers are encouraged. • Plantings must follow the City of Dublin Wildfire Management plan in spacing and plant types as appropriate. • Ornamental plantings shall have an automatic irrigation system installed and maintained by the homeowner. • Drought tolerant and native plants should be considered for planting design. Page 10 • Landscape and Open Space Design Standards Dublin Ranch North • October 2009 FENCES AND WALLS: + +10 Fences and walls should enhance the overall character of the Project. Fences on the lower portions of the lots (west of the Private Drive) are intended to be transparent and blend into the environment. Acceptable fences include but are not limited to rail fences, view fences, and wire fences. Fences such as a privacy fence and walls are acceptable when located between structures on adjacent lots to provide privacy. Fences on the upper portions of the lots (east of the Private Drive) are intended to be transparent and blend into the environment. Acceptable fences include but are not lim- ited to rail fences, view fences, and wire fences. PRIVACY FENCE /WALL: A minimum of 15 feet shall be provided behind the front facade before this fence/ wall occurs. The fence /wall will not exceed 15 feet beyond the rear elevation of the primary residence. The fence will be a maximum of 8 feet tall. • Materials shall include wood, synthetic wood (resin based), and masonry. I VIEW FENCE: • The fence will be a maximum of 6 feet tall. m Fence shall be made of metal and black in color. If provided along the side property line, the fence will be a minimum of 15' behind the front facade of the home. Page 11 • Landscape and Open Space Design Standards RAIL FENCE: Dublin Ranch North • October 2009 5 + L L • The fence shall be 4 feet from the finish grade to the top of the rail. • If the fence is provided for animals such as horses the fence can be increased in height to 5 feet. • The Rail Fence can be used in the front yards and along side yards of homes as a landscape element. • Pilasters can be used as an additional element with the rail fence. • Rail fences shall be white or a natural wood color. AGRICULTURAL FENCE (BARBED WIRE FENCE): • Agricultural Fences shall be used along the edge of the lots and the open space. • Steel posts shall be 6 feet in height and placed with 1 feet 6 inches in the ground and 4 feet 6 inches above grade. The fence shall have four lines of wire, 3 barbed and one smooth. The barbed wire shall be 12- gauge, with the barbs spaced evenly at 6" apart. The smooth wire shall be 12 -gauge and shall be the bottom wire. I" NORMAL SPACING BMVEE T POSTS RBED AND SMOOTH TIRE TO BE 12 - IT GAUGE M Page 12 • Landscape and Open Space Design Standards RETAINING WALLS. Dublin Ranch North • October 2009 L-W.? t +Io • Retaining Walls can be used to help with grading and retaining the natural landform. • Retaining wall height shall be minimized with 30 inches being the preferred height. • Retaining walls shall have a maximum height of four feet. • If retaining more than six feet the retaining walls shall be placed five feet apart and shall not exceed four feet in height. • All retaining walls shall be made with high quality design and materials. • Retaining walls shall be designed to match the architectural style of the residence with similar colors and materials or blend into the environment if located away from the building. • Finishes on walls must continue down to within 4" of finish grade or 2" of adjacent paved surface. UNDEVELOPED LAND: Land within the residential parcels that is not developed or landscaped and has been graded shall be hydro seeded to control erosion and provide cover. FIRE MANAGEMENT: Because the residential lots will be adjacent to permanent Open Space, fire buffers and structures adjacent to the open spaces shall be designed in accordance with the City of Dublin Approximately 126 acres of the Dublin Ranch North Property is designated as Open Space and will be placed into a permanent Conservation Easement. The Open Space will surround the residential lots to the South and East and will provide a connection with the natural environment. This Open Space will be retained in its natural state, providing a habitat for the wildlife and plant communities that are present on the site now. This area also provides a conservation area designed to enhance the natural environment for various wildlife species. Mitigation measures undertaken within the Northern Drainage Conservation Area consist of construction of seasonal ponds, several small riparian revegetation sites, construction of in- stream pools and natural revetments for stabilization, eagle nesting platforms, and enhancement of wetland and upland conditions by implementation of a grazing management plan. Mitigation in this area was completed in January 2004, and H. T. Harvey & Associates has been monitoring the success of restoration efforts on an annual basis. Grading for development will not occur within the Open Space parcel. If planting occurs within the Open Space areas it will be native plants as practical and as accepted by the various environmental agencies. No trails or other development will occur on the Open Space parcel. Page 13 • Landscape and Open Space Design Standards Dtuhlin Rannh AinrFh . ne -fnhnr 9nna Lighting for the Dublin Ranch North property will be through individual house lighting. Utility boxes shall be screened with iandscaping as allowed by the utility companies. Underground facilities should be used where practical. Maintenance of the Dublin Ranch North Property will be the responsibility of four separate entities, DSRSD, the Open Space Conservation entity, a joint maintenance agreement amongst the homeowners and the individual homeowners. See Ownership and Maintenance Exhibit on the next sheet. • DSRSD will own and maintain their parcel. • The Open Space maintenance will be the sole responsibility of the Open Space Conservation Easement entity. • A Joint Maintenance Agreement shall be formed amongst the project homeowners to govern the shared costs of the bioswale, the driveway, gate and mailboxes. • The Individual Homeowner is responsible for maintaining all landscaping and irrigation on their property including all private driveway trees, fences, walls, slopes and lot landscaping. Page 14 • Landscape and Open Space Design Standards Dublin Ranch North • October 2nn9 Owned and maintained by Land Trust or similar entity. ®Homeowner owned with Joint Access and Maintenance Agreement between 4 homeowners. Owned and maintained by Homeowner Owned and maintained by DSRSD Page 15 • Landscape and Open Space Design Standards 64 INS SqW IS MIN n,x Owned and maintained by Land Trust or similar entity. ®Homeowner owned with Joint Access and Maintenance Agreement between 4 homeowners. Owned and maintained by Homeowner Owned and maintained by DSRSD Page 15 • Landscape and Open Space Design Standards DUBLIN RANCH NORTH ARCHITECTURAL DESIGN STANDARDS • Provide high quality architecture that is built utilizing authentic architecture styles and elements • Allow the flexibility of architectural design and style for each homeowner. • Require that the appropriate scale and proportion of architectural elements and the selection of details are used to provide authenticity of style. • Roof forms, materials and building massing shall be used to establish a recognizable style. • Detail elements should be provided to enhance the character of the style. • Materials shall be of high quality. Page 16 • Architectural Design Standards Dublin Ranch North • October 2009 H30 ° L l - The Dublin Ranch North Project is designed to work with the existing topography and provide a hillside estate home community. When placing the home within the primary building envelope care should be given to ensure that the home fits with the surrounding environment. The home should be oriented to views, solar orientation and relate to the open space with courts, balconies and /or decks. Thought should also be given to the surrounding homes of the development to ensure that privacy is maintained. A conceptual grading plan has been prepared for the Dublin Ranch North property. Flat building pads are provided for each of the four lots in this grading plan. The builder or owner may retain the flat pads or re- design the grading plan to incorporate split pad homes. If additional structures are to be built such as barns, tennis courts and pools they are encouraged to be placed within the flat building pad or terraced on the slopes, but are permitted to occur elsewhere as well. However these structures shall not extend above the ridgeline. Additionally the following criteria shall apply: • Grading within the building envelope shall not exceed 2:1. • Retaining walls can be used to help with grading, terracing and retaining the natural landform. See the Landscape Guidelines for specific retaining wall guidelines. Housing materials, designs and placement should be carefully considered and shall follow the City of Dublin's Wildfire Management Plan. Materials should be non - combustible when possible, and size treatments and coatings as well as sizes of wood elements should be considered. BUILDING MASS AND FORM: The general form of the building should follow the architectural style of the home. Visual interest should be provided by articulations of the wall planes to provide interest and scale. • One and two story elements and forms should be combined to break up massing. • Box forms should be avoided and the second story shall not completely overlay the first floor. • When authentic to the architectural style variable facade setbacks should be provided. • Facades of homes that are visible from Fallon Road or Tasssajara Road shall incorporate a horizontal or vertical massing break. • If a stepped pad is used, varying heights of the stories of the home shall be used. Page 17 • Architectural Design Standards Dublin Ranch North • October 2009 FACADE DETAIL ELEMENTS: `1 � of gilt` All facade elements shall be appropriate to the architectural style of the home. To enhance the building facade and increase interest elements such as covered porches, entry alcoves, windows, entry and other details should be used. • The entry shall be articulated as the focal element of the front facade. • Alcoves or project overhangs as well as different articulations can be used to cast shadows. • If a stepped pad is used the downslope wall shall be articulated and include facade elements that the rest of the home incorporates. This can include windows, balconies, wall articulations and other elements. • Enhanced trim and details shall be used to emphasize doors and windows. • Window treatments such as shutters, awnings, louvered vents, horizontal banding, and false shuttered windows should be used to enhance the exterior of the building if appropriate to the building style. • Facade elements shall be provided on all sides of the home. ROOF LINES /ROOF FORMS: Roof forms shall be consistent with the architectural style of the home. Hip, gable, shed roof forms, or a combination thereof, may be utilized. Dormers and similar elements are encouraged to be used to provide interest. • Dual pitch roof forms such as Gambrel or Mansard shall not be used. • If asphalt composite shingles are used they shall be 50 year architectural grade. • Principal roof forms shall have a minimum roof pitch of 3 1/2:12. • Extended overhangs are allowed if designed properly and are authentic to the architectural style. • If covered porches are provided, roof pitch can vary. Material shall be consistent with the roof material, or house materials. • A variety and balance of hip and gable forms shall be provided to avoid repetitious elements within the community. GARAGE DESIGN: The landscaping, entries and overall residential structure shall be the primary emphasis of the street view. Garages shall be concealed or be de- emphasized. This can be accomplished by utilizing swing in garages, adding windows and other architectural treatments to garage doors, detached and setback garages, recessing garage doors and adding porte cocheres or trellis' forward of the garage door. Deeper front yard setbacks than the required 20' are preferred. No more than two car garage doors shall be on the same plane. An additional door if provided shall be offset by a minimum of two feet. A maximum of three car doors may be front facing onto the private driveway. A maximum of four garage doors are permitted if in swing in garages. Garage Door materials should reflect the architectural style of the home. Roll up doors shall be used. Windows within the garage door are encouraged. Colors should complement the color Page 18 • Architectural Design Standards Dublin Ranch North • October 2009 UA3a +qL-h palette. Garage doors that face the front shall be recessed a minimum of 6" to decrease the visibility of the door if appropriate to style. MATERIALS /COLORS: The materials and colors for the Dublin Ranch North property are encouraged to blend with the natural setting, and to complement the surrounding environment rather than stand out from it. The materials shall be of high quality and compatibility with the other homes within the development. Materials and colors shall be applied to all four sides of the home, and match that of the front elevation of the home. Material changes shall occur at an inside corner or other logical transition point such as chimneys, projections or recesses. ENCOURAGED MATERIALS: Stone in natural hues, naturalistic finishes and patterns are preferred All materials shall comply with the City of Dublin's Wildfire Management Plan as appropriate. Colors should be natural earth tones and are encouraged to mimic and blend with the surrounding colors of the site. PROHIBITED: Bright metals that do not patina or are not matte finished. Colors that are bright or occur in non - traditional tones such as pink, bright yellows, purple, or blue. WINDOWS /DOORS /OTHER DETAILED ELEMENTS: Windows, doors and other elements shall follow the architectural style of the home as well as be made with high quality design and materials. Four sided architecture shall be used, and windows, doors and other elements shall be used on all facades of the home. These elements should be of at the appropriate scale for the home. • Windows shall have a minimum width of four inches of foam trim, a minimum four -by nominal lumber dimension of wood trim, or be recessed by a minimum of four inches. • The entire door assembly should be treated as a single design element including casing, trim, moulding and glass sidelights if provided. • Door colors shall complement the rest of the house either through contrast of the trim color or matching; it should be a different color than the wall color. • Skylights and other roof windows are allowed as long as they are designed to be an integral part of the roof with clear or bronzed glazing and framework that matches the roof or trim color of the house. LIGHTING: The intent is to make each home site a subtle environment from the street and neighbors rather than the focal point. Lighting is encouraged to enhance the architectural and landscape features and provide safety. • No on -site pole lights shall be allowed on lots. Page 19 • Architectural Design Standards LAM o� H'q Dublin Ranch North • October 2009 Flood lights are not allowed unless they are shielded from the neighbor and private drive and is provided with a motion detecting sensor. The number of exterior lighting fixtures shall be limited to lighting landscaping and for safety. All lighting shall be installed to not intrude on the neighboring property or project into the night sky. Secondary units shall match in architectural style, color and design of the principle residence. Additional standards are below: • Secondary units shall be within the lot setbacks. • The Second Unit shall not exceed more than 35% of the total area of the primary residence. • One second dwelling will be allowed per lot. • One additional off - street parking space will be required. This space can be tandem or uncovered, in a driveway or elsewhere. • The Secondary Unit will be included in the Lot Coverage referred to in the Development Standards of this document. • Minimum and maximum square footages will be in accordance with Section 8.80 of the Dublin Municipal Code. • Secondary units not in conformance with Section 8.80 of the Dublin Municipal Code shall be subject to a Conditional Use Permit. Any accessory structures shall be located per City of Dublin Zoning Ordinance Section 8.40. All such structures shall complement in style of the primary residence or shall be screened from public view with landscaping or other techniques. In addition the following guidelines apply: • Accessory Structures shall be a maximum of a 1000 SF ground floor footprint unless approved by a Site Development Review by the Zoning Administrator. • 15 feet maximum height unless the structure is a barn which can be 2 stories if the upper level is used for storage of hay or agricultural equipment, or a garage with a second unit on top in which case the maximum height will be 38 feet. • Agricultural Accessory Structures including but not limited to, stable barns, pens, corrals, greenhouses or coops are permitted with a Site Development Review. • Accessory Structures, with the exception of driveway gates, will be placed within the setbacks provided in the Site Development Standards. All on -site utilities shall be screened either via walls, roof placement, enclosures, etc. as practical. Mechanical equipment such as air conditioners, heaters, etc. shall not be placed on the roof or in the front yard of the home. Page 20 • Architectural Design Standards Dublin Ranch North Annexation Area • November 2009 W3� t 040 Dublin Ranch North Written Statement for a Vesting Tentative Tract Map The following findings relate directly to the lettered questions listed under the Written Statement section of the application submittal requirements for a Tentative Subdivision Map. A. How will the proposed subdivision benefit the City of Dublin? This project will allow the construction of four units and the transfer of 64 other units to less environmentally constrained sites. These dwelling units are already anticipated for by the City of Dublin, and will increase the assessed value of the City. The ability to maintain this overall unit count will maintain a City -wide balance between jobs and housing. Future residents will strengthen the market for nearby commercial uses projected to occur in accordance with the Eastern Dublin Specific Plan. B. Describe how the proposed subdivision will be compatible with surrounding land uses, enhance the development of the -general area, and create an attractive and safe environment. The project will be harmonious and compatible with existing and future development and open space plans. The site plan for the Dublin Ranch North property adheres to the General Plan's and the Eastern Dublin Specific Plan's goals and policies. This will ensure that the project will be compatible, both in terms of land use and physical design, with adjacent development. The Project modifies the General Plan and Eastern Dublin Specific Plan by refining the land plan to reflect the introduction of the mitigation lands, respect utility service requirements, and create a project unlike any other in the City. Approximately 80% of the property will be undeveloped and will remain as natural open space, and additional lands within the development parcel will remain primarily undeveloped due to building restrictions. The four units are intended to provide a county estate character of homes on lots ranging from approximately 4.5 - 13 acres each, with designated building envelopes to limit the impact of development on the hillside. Development will be designed to take full advantage of the natural features of the sites and to limit impacts on environmental resources. Residential dwelling units are a compatible use adjacent to a managed environmental area and development areas will be located away from the Northern Drainage and out of the viewshed of the golden eagle. Vesting Tentative Tract Map Written Statement Dublin Ranch North • March 2008 w35 + X10 The majority of the site that is designated as open space (126.8) will be a permanently managed environmental area. These lands will be placed in a conservation easement and will be managed consistent with a Mitigation and Monitoring Plan approved by various environmental agencies. C. Will the proposed subdivision be consistent with all elements of the General Plan and any applicable Specific Plans of the City of Dublin? This project is consistent with the Planned Development Rezone and the General Plan/ Eastern Dublin Specific Plan as amended, along with all applicable City of Dublin policies and guidelines. The proposed subdivision plan is consistent with the type, location and size of land use designations found in the approved Planned Development Rezones and the General Plan/ Eastern Dublin Specific Plan Amendment. D. Is the site physically suitable for the type and intensity of development being proposed? The site is physically suitable for the type and intensity of zoning districts being proposed. The vast majority of the project area will be undeveloped to recognize the natural features of the site and to preserve and maintain them. A small portion of the site, approximately 20 %, will be developed as estate residential. This development is isolated to the northwestern west facing hill on the site, and will make use of adjacent logical vehicular access points from Cydonia Court. This development pattern is similar to that designated in the General Plan and Eastern Dublin Specific Plan (EDSP), but has been refined to respect the environment and infrastructure requirements, while reducing the density of development. A tributary to Tassajara Creek, referred to as the "Northern Drainage" runs through the central portion of the site. Avoiding this corridor and the lands designated as conservation lands will insure that the project will not adversely affect the environment and will provide prolonged stability for wildlife and their habitats. In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar determined that there are no landslides within the development area. Berlogar Geotechnical has determined that there are no faults located on the site per available record surveys. No portions of the site are within the 100 year flood area per FEMA's Firm Map No. 06001 C0326G 115C, dated August 3, 2009. No hazardous materials exist on the property. E. Is the design of the subdivision or proposed improvements likelv to cause substantial environmental damage or substantially injure fish or wildlife or their habitat? Page 2 • Vesting Tentative Tract Map Written Statement Dublin Ranch North • March, 2008 q 3 0 Q The design of this project is not expected to substantially impact the environment or injure wildlife or their habitat. This project proposes the concentration of residential development in areas of few environmental constraints. Any environmental impacts caused by this project will be mitigated either on -site or off -site. F. Will the design of the subdivision or type of improvements adversely affect the health or safety of persons residing or working in the vicinity, or be detrimental to the public health, safety and welfare? The proposed project is consistent with the Eastern Dublin Specific Plan's ordinances for public health, safety, and welfare. The proposed development project will not adversely affect the health or safety of persons residing or working in the vicinity, nor will it be detrimental to public health, safety or welfare. The project will produce no noxious odors, hazardous materials, or excessive noises. In the follow up survey by Berlogar Geotechnical on October 1, 2009, Berlogar determined that there are no landslides within the development area. Development in hillside areas is carefully regulated under the Specific Plan to insure that hazardous hillside conditions are avoided or remedied. In addition, none of the residential lots in the project will have direct driveway access onto a major arterial. The proposed development project is not anticipated to adversely affect the health or safety of persons residing or working in the vicinity, nor is detrimental to public health, safety or welfare. Development in hillside areas is carefully regulated under the Specific Plan to insure that hazardous hillside conditions are avoided or remedied. Additionally, no hazardous materials have been found to exist on the property. G. Will the design of the subdivision or type of improvements conflict with easements, acquired by the public at large, for access through or use, of property within the proposed subdivision. The design of this project will not conflict with easements acquired by the public at large for access through or use of property within the proposed Project Area. H. Is the site where the subdivision is proposed located on a hazardous waste and substances site (pursuant to Government Code Section 2.65962.5). Eckland Consultants conducted a Phase 1 environmental site assessment of the project area to investigate the potential for on -site hazardous wastes or substances. Eckland's assessment indicates that the property is not known to contain hazardous wastes or substances. The study concluded that the property has a low likelihood that any hazardous or toxic Page 3 • Vesting Tentative Tract Map Written Statement Dublin Ranch North • March, 2008 q3I + qqD substances exist on the site. Eckland recommends no additional investigation at this time. Page 4 • Vesting Tentative Tract Map Written Statement C) azva NOISIA3a 'ON y, M 03NO3N0 rm�o �m„o „°9�tl0°°" Uj VIN8031 rJ vo Nnena o A3 A9 03N01530 o„ao-su (sz „> � , „ ,,,, 19 1%1 d+ NN' B11Y130 •aONl 133N6 '8310N '31111 p Al a Nnua° a °I Ic c ex3 a 0109 'ON dYY1 10YH1 3ALLY1N31 ONI183A w 5 W 190D -N a^ HlaON H�NVa NI -isna T 30 NOIS 5 3N1 a3 3N`JIS30 T �'ass3�oud tl I i 3 I 4 a w j a_ �' ° 3 oaava0 l3 v a$ J Z Q I I \ — . 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