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Home My WebLink AboutAttchmt 6 - Part 3 Mitigated Negative Decl (Initial Study) /,IJ "1.~ ~ ../ CALIFORNIA TIGER SALAMANDER ASSESSMENT FOR THE MISSION PEAK PROPERTY ALAMEDA COUNTY, CALIFORNIA Prepared for: ST ANDARD PACIFIC HOMES 3825 Hopyard Road, Suite 195 PleasantOll, Califomia 94588 Prepared by: OLBERDING ENVIRONMENTAL, INC. 4340 Almaden Expressway, Suite 111 San Jose, Califomia 95118 Phone: (408)448-2322 ~ FAX (408) 448-2010 Contact: Jeff Olberding October 3,2003 R""C"'" 'I~U;;; -'r.:nn:::A.l' '" '_/i..J JUN () 2 ZOOS DU8l1N P" ^."'^f""'" l:-.l'\.~~S\l"!\i~ TABLE OF CONTENTS 1.0 INTRODUCTION. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 1 2.0 PRO.IECT LOCATION................................................. I 3.0 PROPERTY DESCRIPTION AND BACKGROUND. . . . . . . . . . . . . . . . . . . . . . . . . I 4.0 REGULATORY SETTING ..............................................2 5.0 REVIEW OF EXISTING REPORTS ...................................... 3 6.0 CALIFORNIA TIGER SALAMANDER SPECIES OVERVIEW. . . . . . . . . . . . . . . 3 6.1 CTS Morphology. ......... ....... . ....... . ...... ..............3 6.2 CTS Life History .............................................. 4 6.3 CTS Pray and Predators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6.4 Aestivation Habitat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.0 METHODS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 7.1 Assessment of potential CTS aestivation habitat ....................6 7.2 Assessment of Potential CTS breeding habitat. . . . . . . . . . . . . . . . . . . . . . 7 7.3 Assessment of CTS barriers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.4 Methods of USFWS protocol surveys for presence/absencc of CTS . . . . . 7 8.0 RESULTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8.1 Preseuce of CTS at or in the vicinity of the property. . . . . . . . . . . . . . . . . 8 8.2 Assessment of potcntial CTS aestivation habitat .................... 8 8.3 Assessmcnt of potential CTS breeding habitat. . . . . . . . . . . . . . . . . . . . . . 8 8.4 Asscssment of barriers to CTS movement ......................... 8 9.0 CONCLUSIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . " . . . . . . . . . . 9 10.0 RECOMMENDATIONS................................................. 9 11.0 LITERATURE CITED.................................................ll ii ATTACHMENTS ATTACHMENT NO.1 FIGURES Figure No. 1. Regional Map Figure No.2. Vieinity Map Figure No.3. USGS Quadrangle Map Figure NO.4. Site Map Figure No.5. California Tiger Salamander Location Map This report should be cited as: Olberding Environmental, Inc. October 2003. Califomia Tiger Salamander AssessmclllJor the Mission Peak Properly, Alameda COU/lty, Ca1!lomia. 13 pp. plus attachments. Prepared for Standard Pacific Homes, Plcasantoll, California. iil 1.0 INTRODUCTION At the request of Standard Pacific Homes, Olberding Environmental, Inc. conducted a biological resources analysis asscssing the presence of potential habitat suitable for use by the California tiger salamander (Ambystorna tlgrlnum californlense [CTS]) at the Mission Peak Property ("The Property"), located outside the City bOlllldary of Dublin. within Alameda County, Califol11ia. This report documents the methods, results. and conclusions of the reconnaissance-level biological analysis assessing potential CTS habitat and migration balTiers within and immediately surrounding the Property. As pat1 of the analysis effort. the Property was surveyed for potential breeding and aestivation habitat suitable for the tcrrestrial and aquatic life stagcs of the CTS. The Propel1y and surrounding areas in the immediate vicinity were also examined for structures (e.g., roads. large drainages etc.) that might constitute potential barriers to CTS mie,rration betwecn brecding and aestivation habitat. I'inally, this biological resources analysis also includes a review of previously prepared biological reports/infC1l111ation, pertinent litcrature on the CTS. and a review of information related to the CTS habitat characteristics. Relevant background information includes the California Natural Divcrsity Dat~ Base (CNDDB), as well as previous field investigations conducted within the area. '-,j 2.0 PROJECT SITE LOCATION The Mission Peak Propcrty is locatcd on the east side ofTassajara Road, north of the city of Dublin. The Property is approximately 2.5 miles north ofthe Highway 580 and Tassajara Road interchange. The site is situated at thc first bend in the road way whcre it curves cast to cross over the East Fork ofTassajara Creek (East Fork). The Property is located in Alameda Connty,just south ofthe Contra Costa/Alameda County line. Tassajara Road forms the westel11 boundary of the site, and undeveloped lands occur to the east. The East Fork crosses through the northwest end of the Property. Attachment 1, Figure 1 depicts the regional location of the Property in Alameda County. Attachment 1. I'igurc 2 illustrates the vicinity ofthc Property in relationship to the City of Dublin. Attachment 1, Figure 3 identifies the location ofthe Property on the USGS 7.5 Quadrangle Map for Livel1nore. A parcel or site map of the Property is included as Attachment 1, Figure 4. 3.0 PROPERTY DESCRIPTION The landscape within thc Property consists of a rolling telTain with the steep to moderately steep topography that characterizes thc upper Tassajara Creek watershed. Site elevations range from 883 feet at the top ofthc ridge linc at the easter-n comer of the Property, to 492 fcet in the relatively level area along thc northwestcrn part of the Property. Within the Property. drainage flows generally in an east to west direction with surface f10ws discharging into the East Fork ofTassajara Creek. which f10ws northeast to southwest along the northwestcm property boundary. An unpaved gravel access road into the Property leads north toward a constructed pond; a second pond occurs further up gradient and northeast at the point of convergence of two chaJUlels with intermittent f1ow. One of the channels is fed by two seeps that provide water to the system aftcr stO!1n water nmoff has ceased. Downstream from the upper stock pond, a single chamlel emerges continuing down hill for several hundred feet before disappearing into an alluvial fan. A second coustmcted pond is positioned adjacent to the East Fork of Tassajara Creek. The lower pond has been constructed as part of a recent mitigation measure. This pond consists of a constmcted berm and spillway placed across the drainage. Both ponds have been fenced to exclude cattle grazing and are surrounded by thick emergent wetland vegetation. There is cUITent1y no development on the Property. The land is used for cattle pasture which leaves little or no vcgetation in some areas where over grazing occurs. The lands to the north. east and south are similarly used for pasture and are separated from the Property by barb wire fences. The landscape supports non-native annual grassland throughout the site and patches of native perennial grassland habitat are found on the north facing slopes. Within the Property, the east bank of Tassajara Creek supports abundant riparian vegetation including arroyo willow (Salix lasiolepis) and valley oak (Quercus lobata), which are found along thc active portion ofthe channel and up to the top of the bank. ElderbelTY (Sambucus mexicana) and coyote brush (Baecharis pilularis) arc also prescnt as sccondary species in the corridor and arc the only understory components along the channel. Several mature blue gum (Eucalyptus globulus) occur on the top of the east bank and within the channel. One residence is locatcd west of Tassaj ara Road, across from the property, and one residcnce is found on the land to the south ofthe parcel. This area supports sparsc riparian vegetation which has been impacted by grazing cattle resulting in a lack of under story vegetation. 4.0 REGULATORY SETTING The CTS is on the California Department of Fish and Game (CDFG) list 0 f animal species of special concern (CDPG 2003). Spccies of special concem are those whose breeding populations arc declining; therefore, those species eonld face extilvation in thc future. The CTS is currcntly state- listed as a species of special concern and is fcderally listed as endangered in Sonoma and Santa Barbara Countics in Califomia. Although the CTS has no legal status in Alameda County, the CDFG recommcnds considering this species during analysis of proposed project impacts to protect declining populations and to avoid the necd to list thcm as endangered in the future. Currcntly. the CTS is bcing revicwed for listing as fedcrally threatened or endangcred. On May 23,d. 2003, the U.S. Fish and Wildli fe Service (USFWS) 2 publishcd in the Fedcral Register a proposal to list the CTS as a threatened species under the Endangered Species Act. By court order, the USFWS has until May 15'h, 2004 to make a final decision as to whether to list the species. Therefore, the federal status of the CTS is likely to be resolvcd by May 2004. 5.0 REVIEW OF EXISTING REPORTS Special-status specics reports werc accessed by searching the CNOOB d~:;;~" by the Livem10rc and Tassajara 7.5 minute quadrangle maps representing the Propel1y. The CNDDB report was uscd to focus special-status species analysis of the site prior to the field reconnaissance survey. One CNDOB listing for thc CTS occurs on the Propel1y at the upper stock pond (2000 listing). Dr. Mark Jennings is the biologist who identified CTS larvae at the upper stock portg)in surveys carricd out between 2000 and 2002. Dr. Jennings indicated that no CTS larvae were foun'd in the lower pond wherc Califomia red-legged frogs (Rana aurora draytonii) are known to occur due to the depth of the pond and inabilityto adequately survey the fcature. However, it is possible that CTS could occur at the lower stock pond (Jennings 2003). CTS have been recorded at nearby locations including Tassajara Creek Regional Park, the area near Brodcr Boulevard and Creekvicw Drive, and in a stock ponds OccuLTing southeast of the Property near Fallon and Croak Roads (scc Attaehmcnt 1, Figure 5). 6.0 CALIFORNIA TIGER SALAMANDER SPECIES OVERVIEW 6.1 CTS Morphology The CTS is a large terrcstrial salamander with adults attaining a total length of ovcr 8 inches (203 millimeters) [Stebbins 1951]. Dorsally the background color appears to be jet black, norn1ally with an overlain pattern of white or yellow spots or bars (Stebbins 1985). Ventral surfaces are highly variable in pattern, ranging from nearly uniform whitc or pale yellow to variegated whitc or pale yellow and black (Jenning and Hayes, 1994). Juvenile salamanders are 1.7-2.8 inches (42-70 millimeters) from the top of the snout to the rcar of the vent and have the same coloration pattcrn as adults. Salamanders that are recently metamol1Jhosed often havc a pale yellowish-brown or tan, or greenish-colored dorsum with dark flecks and blotches (Jennings unpublished data). These blotches soon fade to a white or yellow color after a few weeks. Larval salamanders range in size from 0.4-6.6 inches (11-150 millimeters) in totallcngth with a palc yellowish-brown or dark-colored dorsum (Anderson 1968). Extemal gills and legs are prominent features on all salamandcr larvae over 2 weeks old (Storer 1925). 3 6.2 CTS Life History Brecding of adult CTS has been observed from late November through February following the onset ofwanll rains (Storer 1925, BatTY and Shaffer 1994). Based on observations made during the 1990s, salamanders often do not breed during periods of aseasonally cold rains or during drought (whether breeding ponds are filled with water or not) [Barry and Shaffer 1994; Jennings unpublished data]. Both males and females cngage in noctumal breeding migrations traveling up to 1 mile (1.6 kilometers) [Austin and ShatTer 1992] or more from subterranean retiJge sites (e.g., small mammal bunows) [Loredo and others 1961] to breeding ponds or long-lasting rain pools (Anderson 1968). Adult salamandcrs are possibly stimulated to move to breeding sites by the vibrations of rainwater falling on the soil. as adult male salamanders have been observed (after preceding nights of rainfall) wandering on the dry soil of rain pools that have not yet fillcd (Jelmings unpublished data). Sites used for reproduction are typically natural pools that fill with rainwater and artificial stock ponds; however, salamanders have also been observed to breed in springs, wells, artificial reservoirs. quany ponds, man-made canals, and rarely. in the slack waters of oxbows in medium-sized streams (Jennings unpublished data). Such sites mayor may not contain dense amounts of aquatic and streamside vegctation. Thc highest numbers of larvac appear to occur in aquatic habitats that are largely devoid of any vegetation and contain very turbid watcr. In such situations. salamander larvae oftcn hide during thc day in the deeper portions of the pond or under debris (such as dead Russian thistles [Salso/a tragus]) that blow into the pond (Jennings unpublished data). Since salamander larvae arc very cryptic in coloration, they are often hard to observe in the turbid watcrs of breeding habitats. Anccdotal evidencc suggests that salamanders have a high degrec of site fidelity to their breeding ponds and also to the small mammal bunows they use for rcfugia (Shaffer and others 1993; Jennings unpublished data). For examplc, a gravid, adult female CTS removed from a breeding pond and transported to a newly crcated mitigation pond moved a straight-line distance of approximately 0.9 miles (1.4 kilometers) back to the original point of capturc over a 3-week period (Duke and others 1998). Males generally preccde females during the breeding scason by 1-2 weeks (Shaffer and others 1993; Loredo and others 1996). Following underwater courtship from one ormore males. females normally dcposit thcir moderate-sized cggs (0.13-0.21 inches [3.6-5.9 millimeters] diameter) singly on vegetation and othcr debris in thc shallow margins of rainwater pools (Storer 1925). Large females may deposit up to 350 eggs per scason. although most fcmales only deposit 100-200 eggs (Jennings unpublished data). Adult salamanders apparently leave breeding ponds soon after spawning (Storer 1925), although they may forage for up to a month in the general area if conditions continue to hc moist (Barry and Shaffer 1994). Most salamanders soon relum to aestivation habitats in small burrows whcre they spend approximately9-1 0 months undcrground until the next winterrains (Barry and Shaffer 1994; Jennings unpublishcd data). 4 Embryos ofCTS hatch in approximately 14-28 days after being laid (Storer 1925) and the resulting gilled aquatic larvae (0.41-0.43 inches [10.5-11 millimeters] in length) require a minimum of about 10-12 wceks to complete development through metamorphosis. At metamorphosis. young salamanders havc attain a total length of about 2.6 inches (75 millimeters) [Anderson 1968. Feaver 1971]. Metamorphosis is apparently initiated by receding water levels in breeding ponds and most larval salamanders do not mctamorphose until they are as large as possible (Feaver 1971). Although the native brccding habitat for this species nOlmally dries each year and metamo'11hosis is paramount under such conditions, there are a few observations oflarval salamanders overwintering in artificial constructcd pcmlancnt ponds (Shafferpcrs com.). The overwintering oflarvae (especially to sexual maturity) is common in many closely related spccies of mole salamanders (Ambystoma spp.) Found in other parts of North America (Stebbins 1985, Petranka 1998). 6.3 CTS Prey alld Predators CTS larvae are carnivorous and feed on just about any organism they can ovellJower- including smallerconspecifics (Feave,- 1971). Larger larvae havc becn observed to fccd on the larvae of Pacific trce frogs (flyla regilla), Califomia toads (Buro boreas halophilus) and Westcrn spadefoot toads (Scaphiopus hammondii), as well as many aquatic invertebrates (Anderson 1968. Feaver 1971; Jcnnings unpublished data). During aestivation, juveniles probably feed on the rich invertebratc fauna that is normally associated with small mammal burrows and grow rapidly over the next scveral months. Adult CTS apparently eat the same food organisms as juvenilc salamanders (Morcy and Guinn 1992; Jennings unpublished data) and may live as long as 20+ years in the wild based on the longcvity oC other closely related species in captivity (see Snider and Bowler 1992). Predation to salamanders is probably minimal in underground refugia. Juveniles and adults are known to be eaten by bullfrogs (Rana catesbeiana), garter snakes (Thalllnophis spp.), and probably black-crowncd night herons (Nycticomx "ycticomx) and raccoons (Procyon lotor) when they arc present on the surCace during the wet winter and spring months (Morey and Guinnl992; Jennings unpublished data). Larvae arc eaten by a wide varictyofpredators including garter snakes, bullfrogs, California red-legged fi'ogs, herons (Ardcidae), terns (Sterna spp.) And apparently fish when thc latter arc introduccd into breeding ponds (Baldwin and Stanford 1987. ShaCfer and others 1993. Fisher and Shaffer 1996; Jennings unpublished data). 6.4 Aestivatioll Habitat Following metamorphosis (nol111ally from early May through July). juveniles cmigrate ell masse at night Ii-om the drying breeding pond (Holland and others 1990; Jennings unpublished data). Traveling distanccs of up to 1 mile (1.6 kilometers) or more from breeding sites juvenile salamandcrs wander into small mammal burrows or deep cracks in the soil. which they use as refugia during the hot summcr and fall months (ShalTer ] 993. Lorcdo and others 1996). Juvenilcs will also wander into certain man-made structures such as wet basemcnts, wells, undcrground pipes, and septic tank drains (Storcr 1925). 5 Mortality of juveniles can be high during this transition period due to the stress of metamorphosis and the problems of finding a suitable refuge site before the sun comes up. For example. Holland and others (1990) found almost an entire cohort ofCTS killed by unsuitable weather conditions when they attempted to emigrate from their breeding pond during the late summer. Data suggests that most individuals require 2 years to beeome sexually mature, but some individuals maybe slower to mature during periods of drought or aseasonal rainfall (Shaffer and others 1993). Juvenile and adult CTS normally use the burrows of California ground squirrels (Spermophilus beecheyi) and Botta's pocket gophers (Thomomys bottae) as underground refugia (Storer 1925, Jennings and Hayes 1994. Jennings 1996, Loredo and others 1996). Both juvenile and adult CTS ha ve been known to settle into oCCLlpied and unoccupied Califomia ground squirrel burrows to aestivate (Loredo and others 1996). CTS have also been observcd in the burrows of California voles (Microtis californicus), blacktail jackrabbits (Lepus californicus) and the deep cracks of clay soil which may extend up to 15-feet (4.6 meters) deep from the soil surface (Loredo and others, Jennings unpublished data). CTS may also turn up in certain man-made structures (e.g., wet basements. wells, swimming pools, underground pipes, and septic tank drains [Storer 1925, Pickwell 1947], sometimes many years after their local breeding site has been destroyed (Jennings unpublished data). Juvenile and adult salamanders are especially common in situations where piles of concrete. rock, or other rubble are mixed with dirt and arc located ncar breeding sites (Jennings unpublished data). This is probably because such sites are attractive to bUlTowing rodents that create extensive tunnel and burrow systems that are in turn used by CTS. 7.0 METHODS 7.1 Assessment ofpotential CTS Aestivation Habitat The site was surveyed for potential CTS aestivation habitat by walking transects up the hills in a west to cast direction from Tassajara Road. Potential CTS aestivation habitat was classified as one ofthrce types Small mammal burrows. Mounds of dirt 6-12 inches in diameter, which are composed of the tailings of burrowed earth deposited by small mammals such as ground squirrels and moles. Deep cracks in the ground. 6 7.2 Assessmellt of Potelltial CTS breedillg habitat The site was inspected for the presence and condition of swales, intel111ittent channels, and shallow depressions along seasonal drainages that could pond during the winter rains. 7.3 Assessmellt ofCTS barriers Potcntial barriers to CTS dispersal into or out ofthe site were assessed by inspecting the areas within and immediately sunounding the Property. The following are considered to be potential barriers to overland movement ofCTS: Roadways with heavy traffic volumcs are anticipated to create a dispersal barrier. Large buildings are anticipated to act as partial barriers to CTS dispersal. Walls and wooden fences that are in contact with thc ground surface could act as a dispersal barrier. Wire mesh fencing is not considered to be a barrier. The East Fork ofTassajara Creek and Tassajara Creek charmels may be a barrier during high flow timcs following st0l111 events. 7.4 Methods of USFWS protocol sllrveys for presellce/absellce ofCTS USFWS protocol CTS survey methods for assessing the presence/absence ofCTS are summarized below. Sincc CTS have been identified at the Mission Peak Propcrty, fltrther protocol surveys may not be necessary at this Propcliy to reconfil111 the prescnce 0 f CTS. Due to the presence of CTS on thc nearby Mission Peak Property, it is likely that the USFWS will assume thc continued prcscnce of CTS on the Property. USFWS protocol requires that the presence/absence of CTS be assessed using pitfall trap arrays arranged along the perimeter of the Propcrty. Each pitfall trap consists ofa bucket places into a pit in the ground that is dug out so that the bucket is flush with the ground surface. Pitfall traps are installed at a distance of approximately 30 fcet apart. The arrays are cOill1ected using silt fencing that is placed between buckets to form a contiguous banier for CTS movement across the length and breadth ofthe Property. Tn addition to perimeter trap lincs, transect trap lines are also included to maximize the chance of capture. Fencing construction must be complete before thc onset ofthe first wintcr rains, which stimulate adults to migrate to breeding ponds. 7 8.0RESUL TS Olberding Environmental conducted a reconnaissance level survey of the Property on August 22"", 2003. The recollnaissance level surveycollsisted of walking throughout the Property and evaluating the Property and adjacent lands for potential CTS aestivation, breeding habitat, as well as barriers to CTS dispersal. 8.1 Presel/ce of CTS at or in the vicinity of the Property The CNDDB records indicate a recent (2000) CTS sighting at the upper stock pond that occurs on the Property (Attachment 1, Figure 4). CTS were also sighted in subsequent surveys on the Propetiy conducted during 2001 and 2002 (Jennings 2003). The CNDDB identifies many other CTS records elsewhere within the Livermore quadrangle (CNDDB 2003). 8.2 Assessment of Potential CTS Aestivation Habitat The area bctween the two stock ponds and thc sun-ounding hillsides were cxamincd for the presence of active and unused California ground squin-el bun-ows. Bun-ows wcre abundant along the hills on cither side of the intermittent chmmels draining into the East Fork ofTassajara Creek. There was also a high density of burrows along the swale between thc two ponds. Deep fissures in the ground were also sightcd within this area. Based upon these observations, CTS aestivation habitat is likely to bc abundant within this area of the project. 8.3 Assessment of Potential CTS breeding Habitat The uppcr pond is likely to provide habitat for CTS breeding and for larval development if winter rains provide adequate water to fill the pond for a minimum of 10-12 weeks. The lower pond may also providc CTS brccding habitat. 8.4 Assessment of Barriers to CTS Movement The East Fork ofTassajara Creek is considcred to be a seasonal ban-ier to CTS dispersal during times of heavy seasonal flows (e.g., during the winter rains). CTS dispersal between the Propeliy and adjacent potential habitat across the creek (e.g., in Tassajara Creek Regional Park) is unlikely to be possible during those times of heavy flow. The existing barbed wire and other fencing that occurs within and around the Property docs not constitute a barricr to CTS migration. Tassajara Road is considered to bc a CTS barrier between the Property and adjacent lands further west. 8 In summary, potential barriers to CTS dispersal were observed to the west (Tassaj ara Road), and northwest (East Fork ofTassajara Creek) ofthe Property. No barriers werc observed to the east and south of the Property. 9.0 CONCLUSIONS Past CTS surveys havc been conducted within the Property. Sightings and existing habitat observed seem to indicate that CTS continue to occur on thc Property. The existing literature and observations on potential CTS habitat within thc Property imply that breeding and aestivation habitat are likely to occur on site. 10.0 RECOMMENDATIONS Based on the cxisting literature, CTS could probably utilize the habitat available on the Propc11y as breeding and aestivation habitat, or as a conidor between existing breeding/aestivation habitat and off-site aestivation habitat. It is thercfore recommended that the Client coordinate with the CDFG conccrning the appropriate mitigation measures required for the development ofthe Property. Thcre is also a potential that USFWS may formally list the CTS as fcderally threatened or endangered by May 15''', 2004. If this listing occurs, dcvelopment of the Propcrtymay require coordination with the USFWS in accordance with Section 7 of the Endangered Species Act. Through consultation and negotiation between the CDFG and the USFWS appropriate mitigation measures would be determined. These measures may include construction timing restrictions, salvage surveys, biological monitoring, exclusion fencing, avoidance or sensitive areas or rcduction in projcct size and on-site and/or off-site compensatory mitigation. On-site mitigation measures may include the following strategies during the construction of the developmcnt project: Prcvention of CTS cntry prior to construction: Appropriate exclusionary barriers (e.g., silt fcncing) could be installed along the pcrimeter of the development portion ofthe Property. Exclusionary barriers should bc designcd such that they allow CTS to rnib'Tate out from aestivation habitat to breeding ponds that occur outside the devclopment area ofthe Property. These barriers would be constructed to allow the one-way passage of CTS out of the development area, prcventing re-entry. Fcnce construction timing: Exclusionary barriers could be installed prior to the onset of winter rains which stimulatc CTS to movc to breeding ponds. Implementation of thc mitigation measure would need to bc coordinated with the projcct biologist to insure proper installation. 9 Dispersing and migrating CTS during construction activities on the Property: The banier fcncing should be maintained and monitored continuously for the dnration of construction to ensure that migrating and dispersing CTS do not re-enter the Property. Maintcnance of exclusion fencing: Exclusion fencing should remain in place until the construction of the project is completed. Monitoring requirements: A biological monitor should be present on-site during grading and ground disturbance construction activities to ensure that no take of CTS occurs. Erosion/sedimentation prevention: Best management practices should he followed on the Property to minimize impacts of erosion and sedimentation into the existing drainages and downstream watercourses. Minimizing CTS habitat disturbance: Grading and vegetation clearing in the immediate area (normally regarded as 750 feet) sunotlI1ding the breeding pond should not be conducted during the breeding and migrating seasons (November- June). Mitigation cfforts: Future mitigation efforts could also include the restoration and enhancement of existing CTS habitat on the Property, which has the potential to havc high regional conservation value. /0 11.0 LITERATURE CITED Anderson, P.R. 1968. The reproductive and developmental history of the Califomia tiger salamander. Unpublished M.A. Thesis, Fresno State College, Fresno, California, vii+82 p. Austin, e.e., and I-LB. Shaffer. 1992. Short-, medium-, and 10ng-tenl1 repeatability of locomotor performance in the tiger salamander AlI1bysloll1a califom/ense. Functional Ecology, 6(2); 145-153. Baldwin, K.S., and R.A. Stanford. 1987. Life history notes: AlI1bystoll1a t/gr/nulI1 califom/ense (Califoll1ia tiger salamander). Prcdation. Herpetological Review, 18(2):33. Barry, S.J., and 11.13. Shatfer. 1994. Thc status ofthe Cahfornla tiger salamander (AlIlhystollla calzjorn/ense) at Lagunita: a 50-ycar update. Jou111al oflIerpetology, 28(2): 159-164. California Department ofFish and Game Natural Diversity Data Base, computer listings and map locations of historic and current recorded OCCUlTcnces of special-status species and natural cot11I11unities of special concern for USGS 7.5 minute quadrangle map: Livell1lOre and Tassapra, January 2003. California Department ofFish and Game. 2002. Special animals. http://ww.dfg.ca.gov/endangcred/special_ animals.html (June 2002). __' 2003a. State and federally listed Endangered, Threatened, and Rare plants of Cahfornia. http://www.dfg.ca.gov/endangered/t_eplnt.pdf (A pril 2000). 2003b. State and federally listed Endangered and Threatened animals of California. http://www.dfg.ca.gov/endangcrcd/t_e_anlma1.pdf (April 2000). Duke, R.R., R.A. Hopkins, M. Jennings, and P. Hartman. 1998. Tradition Gulf Club California tiger salamander 1996/1997mitigalion monitoring. Fmal report prepared t(lrTradition Go]fClub, LLC, San Jose, Cahfornla. I-1. T. Harvcy and Associates, Alvis<l, Cahfoll1ia. [Project No. 957-03]. 1+29 p. Feaver, P.E. 197]. Breeding pool selection and larval mortality ofthree Califo111ia amphibians: AlIlbystoll1a tigrinum cal({orniense Gray, flyla regilla Baird and Girard, and Scaphiopus hal111110ndii Girard. Unpublished M.A. Thesis, Fresno State Cotlege, Fresno, California, vii+58 p Flsher, R.N., and H.B. ShatTer. 1996. The decline of amphibians m Califomia's great Central Vatley. Conservation Biology, 10(5): 1387-1397. Flohr, GP. 2003. Unpublished data on mammals trapped In Santa Rosa. Hotland, D.e., M.P. Hayes, and E. McMillan. 1990. Late summer movement and mass mortality m the California tiger salamander (Ambystoma californ/ense). The Southwestern Naturalist, 35(2): 217-220. Jennings, M.R. 1996. Natural history notes: Al11bystoma califoJ"l1/ense (California tiger salamander). Burrowmg ability. Herpetological Review, 27(4): 194. If Jennings, M.R. 1998. Conservation and biodiversity of amphibians and rep111es along the ecntr"1 Califol11ia coast. Pages 33-40 In: Nona Chiariello and Raymond V. Dasmann (editors). Proceedings of the Symposium on Biologiea1 Diversity of Central Califol11ia Coast. Associal1on for the Golden Gate Biosphere Reserve, University of California, Department of Environmental Seicnce, Policy, and Management: Cooperative Extension Forcstry. vii+ 122p. Jennings, M.R., and M.P. Hayes. 1994. Amphibian and reptile speeies of special concern in Califomia. Final Report to the Califol11ia Department of Fish and Game, Inland Fisheries Division, Raneho Cordova, California, undcr contraet number 8023. iii+225 Jennings, M.R., 2003. Personal Conul1unication with Dr. Jennings confirming the positive identification of CTS at the Mission Peak Property during surveys eonducted in 2000-2002. Loredo, I., D. Van Vuren, and M. L. Morrison. 1996. Habitat use and mi[,'TatlOn behavior of the California tiger salamander. Journal of Herpetology, 39(2): 282-285. Long, M.M. 1992. Endangered and threatened wildlife and plants, 90-day finding, and conunenecment of status review for a petition to list the Califomia tiger salamander. Federal Register, 57(224): 54545-54546. [Thursday. November 19,1992]. Morey, S.R., and D.A. Guinn. 1992. Activity pattcrns, food habits, and changing abundanec in a community of vernal pool amphibians. Pages 149-158 In: Daniel F. Williams, Sheila I3yme, and Theodore A. Rado (cditors). Endangered and sensitive species of the San Joaquin Valley, California: their biology, management, and conservation. The Califonlia Energy C0111mission, Sacramento, California, and the Westcrn Seetion of the Wildlife Socicty, xv+388 p. Petranka. J.W. 1998. Salamanders of the United States and Canada. Smithsonian Institution Press, Wasbington. D.C. vii+587 p. Piekwcll, G. 1947. Amphibians and reptiles of the Pacific statcs. Stanford University Press, Stanford, California, xiv+236 p Shaffer, H.B., R.N. Fisher, and S.E. Stanley. 1993. Status report: the Califorma tiger salamander (Amhystoma californiense). Final report to the California Departmcnt of Fish and Game, Inland Fisheries Division, Rancho Cordova, California, under contract numbers 9422 and 1383.93 p. Snider, A.T., and J.K. Bowler. 1992. Longevity ofrepl1les and amphibians in North American eolleetions. Seeond edition. Society for the Study of Amphibians and Reptiles, Miscellaneous Publications, Herpetologieal Circular (21): iii+40 p. Sorensen, P.c. 1994. Endangered and threatened wildlife and plants; 12-month petition fmding for the California tiger salamandcr. Federal Register, 59(74): 18353-18354. [Monday. April] 8. 1994]. Stebbins, R.C. 1951. Amphibians of western North America. University of California Press, Berkeley, Califomia, ix+539 p. /2 Stebbins, R.C. 1985. A field guidc to western reptiles and amphibians. Second edition, revised. Houghton Mifflin Company, Boston, Massachusetts, xiv+336 p. Storer, T.I. 1925. A synopsis of the Amphibia of California. University of California Publications in Zoology, 27:1-342. 13 ATTACHMENTS ATTACHMENT NO.1 Figure No.1. Figure No.2. Figure No.3. Figure No.4. Figure No.5. FIGURES Regional Map Vicinity Map USGS Quadrangle Map Site Map California Tiger Salamander Location Map FIGURE NO. 1. 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"I I , '- -::- _ '-- I \.......--~.~--.. ~ ......_ I / i r--- IlOIlO ft Scale: 1 : 25,000 DetniI: 13-0 Datum: NAD27 STREAMBED ALTERATION AGREEMENT APPLICATION For The MISSION PEAK DEVELOPMENT PROJECT ALAMEDA COUNTY, CALIFORNIA Prepared for: STANDARD PACIFIC HOMES 3825 Hopyard Road, Suite 195 Pleasanton, Califomia 94588 Prepared by: OLBERDING ENVIRONMENTAL, INC. 3] 27 Vistamont Drive, Suite 100 San Jose, Califomia 95118 Phone: (408) 448-2322 ~ FA-'\: (408) 448-2010 Contact: Jeff Olberding .TUL Y 2004 TABLE OF CONTENTS 1.0 NOTIF1CAT10N OF LAKE OR STREAMBED ALTERATION FOlZlvl 2.0 SUPPLEMENTAL INFORMATION FOR NOTIFICATION OF REMOVAL OF MATERIALS AND/OR ALTERATION OF LAKE, RNER, OR STREAM BOTTOM, OR MARGIN 3.0 LAKE AND STREAMBED ALTERATION PROGRAJVl QUESTIONNAIRE LIST OF ATTACHMENTS ATTACHMENT NO.1 FIGURES Figure No. 1 Figure No.2 Figure NO.3 Figure No.4 Figure NO.5 Figure No.6. Figure No.7. Regional Map Vicinity Map USGS Quadrangle Map Aerial Photograph Development Site Existing Topography Jurisdictional Delineation Map Site Plan ATTACHMENT NO. 2 SITE PHOTOGRAPHS This report should be cited as: Olberding Environmental, Inc. July 2004. Streambed Alferalfoll Agreement Application for the Missioll Peak Development Project, Alameda County, California. Prepared for Standard Pacific Homes, Pleasantol1, Califomia. 1.0 NOTIFICATION OF LAKE OR STREAMBED ALTERATION FORM . For Department Use Only .. Notification No: I DateR~cCived:.../ Date Completed I Fees Enclosed? DYes $ -.- o No - Action T3.ken/Notes: STATE OF CALIFORNIA THE RESOURCES AGENCY DEPARTMENT OF FISH AND GAME NOTIFICATION OF LAKE OR STREAMBED ALTERA TlON (See attachment/enclosure for instructions) . ".N 'f' "1' ob lcatlOll ype. o Timber Harvest [>);:111 (No. o Water Application (No o Commercial Gravel Plan (No. XOtller Applicant Information . . .. . .' .... Nalne .. Address Telephone/FAX Applicant: Standard Pacific Homes Standard Pacific Homes Business: (925) 847-8700 Contact: Norman Soares 3825 Hopyard Road, Suite 195 Plcasanton, California 94588-8529 Fa,,(925) 847-9167 Operator: Standard Pacific Homes Standard Pacific Homes Business: (925) 847-8700 Contact: Nonnan Soares 3825 Hopyard Road, Suite 195 Pleasanton, California 94588-8529 Fax (925) 847-9167 Con tractor Business. (if known); Fax: Contact Person Jeff Olberding Olberding Environmental Business: 408-448-2322 (ifnot applicant); 3127 Vistarnont Dflve, Suite 100 . . San Jose, CA 951] 8 Fax 408-44K-20 1 0 Propelty Owner: Standard Pacific Homes Standard Pacific Homes Business: (925) 847-8700 Contact: Norman Soares 3825 Hopyard Road, Suite 195 Pleasanton, Cal1fornia 94588-8529 Fax (925) 847-9167 .. Project Location . Locatjon Description: The Mission Peak Property is located on the east side of Tassajara Road, nortb o[the City ofDublll1. The Property is found approximately 2.5 miles north of the Highway 580 and Tassajara Road interchange. The site is situated at the Iirst bend in Tassajara Road where it curves east to cross over the unnamed tributary to Tassajara Creek. The Property is located In Alameda County,just south of the Contra Costa County line. The address of . the Property is 6847 Tassajara Road. County Assessor's Parcel Number Alameda IJSGSMap Township .. . Range Section Latitude/Longitude Livermore 28 N37" 44.146', W121' 52052' Name of Ri.vcf,Stream, Unnamed Tributary to Tassajara Creek or Lake: TributaryTo? TassZlj:1ra Creek and Arroyo Mocha Page 1 of 3 NOTIFICATION OF LAKE OR STREAMBED ALTERATION (Continued) Name of Applicant: Standard Pacific Homes ... ProjeCt Description .. ... .. Project Name Mission Peak Development Project Start Date January Completion December Project $20,000 No.ofStreatn ... 2005 Date: 2005 Cost: Encroachrnents:(Timber . Harvest Only) Describe projectbeIO\'v: '. . (Attach separate pages If necessary) The Mission Peak Project consists of the subdivision of approximately 23.5 acres of land \vith residential units and the conservation of 44_3 acres of land as penn311ent open space withi.n the 67.8 acre site. Home construction and grading will occur on the sout11\vestern side of the site, located adjacent to Tassajara Road and an unnamed tributary to Tassajara Creek. The steep hillsides on the north and eastern side of the Project site will remain undeveloped. The Project will involve the construction of an outfall stmcture to Tassajara Creek with impacts to the eastern bank of the Tassajara Creek tributary above and below the ordinary high water line. The outfall will consist of a 9 x 20 x 12 foot concrete structure. Sheet pilings will be installed just above the ordinmy high water line to provide a footing for the outfall. Three concrete chambers have been designed to dissipate \vater velocity from storm \vater discharges. One chamber includes rock and 1/4 ton rip rap to slow water flow as it enters the creek channel at the ordinary high water line. Work below the ordinary high water !iDe includes a rock rip rap protection apron and coir fabric. The bank protection material will be installed over a 15 foot wide length of chalmel and extend 5 feet below the ordinary high water line. The dimensions of the rock rip rap are l5x5x3. Additional work i..n CDFG jurisdiction consists of lhe placement of the discharge culvert from the water tTcatmcnt basin within an underground trench. This activity included the excavation of a tTench 15 feet by 4 feet from the edge of the riparian drip line to the outfall structure_ The trench is estimated to be approximately 6 feet in depth. The total area impacted by the culveli placement is 15x4x6. Other components of the development include specific mitigation measures for special-status amphibian speCIes. A 200-foot setback buffer occurs between an existing CRlP breeding pond and the proposed development envelope. A 100-foot setback buffer is provided benveen an existing CTS breeding pond and the proposed devdopment envelope. A 100-foot setback is provided along the Creek cOlTidor and riparian restoration is proposed for pOliions of land adjacent to the channel. The existing land use includes cattle grazing and after implementation of setbacks and development, cattle impacts to the creek corridor will be eliminated. A permanent concrete curbed CTS and CRLF barrier fence will be constructed around the dcvelopment area to prevent these amphibians from entering the construction area or the housing subdivision after the completion of the Project. T\\:o settling ponds have been designed to capture runoff [rom the development and are 50 feet \vide by 100 feet long each. These 1\:\-'0 ponds are prescribed for yearly sedlment removal. A third water quality pond, deep enough to support California red-legged frog breeding, is sihlated between the two settling ponds. This CRLF pond is approximately 0.14 acres in size and will not be maintained with a sediment or vegetation removal program. o Continued on separate page(s) A ttachments/. Enclosures Attach or enclose the required documents listed belowand check the corresponding boxes. x Project Description X Ivrap showing project location including X Construction plans and drawings distances and/or directions from nearest town pertaining to the project or city Page 2 of 3 o Notice of Exemption 0 Negative Declaration 0 Mitigated Negative Declaration o Draft Environmental Impact Repol1 X Notice of Detennination x Local. Describe: North Dublin General Plan EIR X State. Describe: Concurrent submittal of Regional Board Section 401 Certification X Federal. Describe: Concurrent submittal of Anny Corps Section 404 Nationwide Permit Preconstruction Notification Package (DFG will Receive copy of this submittal) J hereby certify that all illformatioll contained in this notification is tl1Je and correct and that [ am authori:.ed 10 sign Ihis document. J understand that in the event this information is fou/Jd 10 be untrue or incorrect. [ may be subject to civil or criminal prosecution and the Department !/lay consider this notification to be incomplete and/or cancel allY lake or Streambed Alteration Agreement iSSlIed pursuanlto this /Jot/fication. J understand that this informatioll is valid only for the proje!.:r described herein and that I may be subject to civil or criminal prosecution for IInderwking a projecr that differs from the one described hereill. unless [ have notified the Department of that project in accordance with section 160 J or 1603 of the Fish and Game Code. I understand that a Deparrment representativp. may need /0 inspect the property where the project described herein will take place before issuing a Lake or Streambed Alteration Agreement pl/Dunnt to this illformmion. In/he event the Department dctermined that a site inspection is necessm}'. f hereby mllhon':.e rhe Department to enter rhe property where the project described hereill will take place to Inspect the property at any reasonable time and certify that I am aUlhori:ed [0 grallt the Department permission to access the property X frequest the Department tojirstcOlltactJejJOlberdingat (408-448-23J2) to schedule a dale and time to enter Il1eproperty where theproJecr described herein will take place and understand this lIIay delay the Department's evaluation of the prOject described herein. " ;JfL;/!//c40 ~~__~~ Operaloror Opcr.ltor's Represcrili"tive 1-..2-.:;-.:0/ Dnte Foron FG~O~3 (Effective Janu;Jry 12. ~004) Tl_ ~_ 2.0 SUPPLEMENTAL INFORMATION FOR NOTIFICATION OF REMOVAL OF MATERIALS AND/OR ALTERATION OF LAKE, RIVER, OR STREAM BOTTOM, OR MARGIN SUPPLEMENTAL INFORMATION .FOR THE NOTIFICATION OF REMOVAL OF MATERIALS AND/OR AL TERATION OF LAKE, RIVER, OR STREAMBED BOTTOM, OR MARGIN 1. PROJECT TITLE: Mission Peak Development Project 2. NAME AND ADDRESS OF PROJECT PROPONENT: Standard Pacific Homcs 3825 I-Iopyard Road, Suite 195 Pleasanton, Califomia 94588 Please mail all correspondence related to this proiect to: Olberding Environmental. Inc., 3127 Vistamont Drive, Suite 100. San Jose. CA 95118. 3. PROJECT LOCATION: The Mission Peak Property is located on the east side of Tassajara Road, nOlih of the City of Dublin. The Property is found approximately 2.5 miles north ofthe Highway 580 and Tassaj ara Road interchange. The site is situated at the first bend in the road way where it curves east to cross over the unnamed Tassajara Creek tributary. The Propeliy is located in Alameda County, just south of the Contra Costal Alameda County line. The tributary to Tassajara Creek forms the northwestern boundary of the site, Tassajara Road forms the westem border, and fence lines foml all other boundaries. 4. WATERBODY: The tributary to Tassajara Creek is defined by a very deeply incised bed and bank. Approximately 1,460 linear feet of the chazmel occur along the northwestern propeliy line. The active charmel avcrages approximately 5 feet wide and lies approximately 20 feet below the top of the banle A nalTOW flood terrace is also located along portions of the creek adding au average of 9 additional feet to the ehazmel. The slopes of the banks approach veliical, however, a few locations occur that are less steep allowing access to the channel. Scour is ongoing along the banks ofthe charll1el and there is a lack of eharmel vegetation. The portion of the channel in the Property area and directly downstream appears to suffer from a very high erosion rate. Water was flowing downstream at the time of the survey with water depth averaging approximately four inches. Arroyo willow (Salix lasialepis) and valley oak (Quercus labata) are found along the active portion ofthe channel and up to the top of the bank. Elderberry (Sambucus mexicana) and coyote brush (Baecharis pilularis) were also observed as secondary species in the cOlTidor and were the only understory components along the channel. Several mature blue gum (Eucalyptus globulus) occur on the top of the east bank and within the channel. Fine gravel material and silt are found in the bed of the creek. Where Tassajara Road crosses thc creek, a large conugated metal culveri transpOlis flows beneath the roadway. Approximately 1200 feet southwest from the Property, the tributary joins the main channel of Tassaj ara Creek. 5. PROJECT ACTIVITY: The Mission Peak Project consists of the subdivision of approximately 23.5 acres ofland with residential units and the conservation of 44.3 acres of land as permanent open spacc within the 67.8 acre site. Home construction and grading will occur on the southwestem side of the site, located adjaccnt to Tassajara Road and the tributary to Tassajara Creck. The steep hillsides on the north and eastern side of the Project site will remain undeveloped. Thc Proj cct will invol ve the construction of an outfall structure to Tassaj ara Creek with impacts to the eastern bank of Tassaj ara Creek above and below the ordinary high water line. The outfall will consist of a 9 x 20 x 12 foot concrete structure. Sheet pilings will be installed just above the ordinary high water line to providc a footing for the outfall. Three concrete chambers have been designed to dissipate water velocity from storm water discharges. One chamber includes rock and 1/4 ton rip rap to slow water flow as it enters the crcek chamlel at the ordinary high water line. The outfall will also include work below the ordinary high water line of the Creek wherc a rock rip rap protection apron and coir fabric will be installed. The bank protcction will be installed over a 15-foot wide length of channel and extend 5 feet below the ordinary high water line. Two settling ponds have been dcsigned outsidc tbe riparian cOlTidor, outside of CDFG jurisdiction, to capturc nmoff hom the development. Waters from the detention pond site will discharge to a larger basin and finally into the outfall culvert. The settling ponds arc 50 feet wide by 100 feet long each. These two ponds are prescribcd with yearly maintenance to remove sediment. 6. PURPOSE: Thc Project will provide housing for the community of Dublin as provided for in the Dublin General Plan EIR. The installation of an outfall structure will provide a stable means to discharge treated stonl1 waters into thc Creek channel and avoid scouring or erosion. The sediment ponds will rcduce the particulate matter that enters the Creek chalmel prior to dischargc. 7. DISCHARGE OF DREDGE OR FILL MA TERlAL: The construction of the outlet structure will rcquire work on the bank of the Creek including impacts above and below the ordinary high water (OHW) line. To install the concrete outfall structure, a 240 square foot (0.006 acre) area will be impacted above the OHW. Approximately 95 cubic yards of bank material will be removed in the process. Bclow the OHW rock rip rap will occupy an area of approximately 75 square feet (0.001 acre). A 1-3 foot depth of rip rap will be installed ovcr a length of 15 feet. Thc rock may extend into the chalmel as far as 5 feet. Erosion control fabric will be installed over the rock rip rap. Approximately 3-5 cubic yards ofthe channel below the OHW will be impacted to install the rip rap matelial. 8. HABITAT IMPACTS: A total of 0.007 acres of impact to the Creek channel and embankment is proposed to install the outfall structure. The bank of the Creek supports limited willow vegetation and non-native atmual grasses. The Creek channel does not support aquatic vegetation due to annual scouring and cattle grazing and watering. The outfall structure is positioned between a break in the willow riparian vegetation, but construction may require the trimming of trees to accommodate equipment access to the work area. All herbaceous vegetation will be removed to construct the ontfall and limited ripalian vegetation removal will oceur only as necessary. 9. NATIONWIDE PERMIT QUALIFICATIONS: This project qualifies for authorization of Natiol1wide Pem1it 7 (Outfall Structures and Maintenance) from the U.S. Am1Y Corps of Engineers. 3.0 LAKE AND STREAMBED ALTERATION PROGRAM QUESTIONNAIRE ~ .. ~ ,i'. :z' ~ ;-:2 Cj :;' q t;J Z 2 -< " o en '" '" CJ i:" ::c (f] ...... "" "" o ::; I- ~ Z o ~ =: i'8 E- o:: ~ ~ ~ '" ~ t; .0 '" u "- o g " " o " " w ~ " ~ " 2 u '" ~ -'1 ~ c:: " E 0. o "i:i > " r:l S-a E~ OJ)~ E 0 ~ '" '" c ....... .S ;:?; - <1J "..c ;;1- .:=: -< is ~ "'d ~ ~ ~ '@ ~ a ~ ~ - en (f] " "'d " =CI .::: U " <1J ~ "9' ,....J~ 15 u '" t '" v ~ '" J! "" <:; v '0' i3.. -a v ~ " 0- i3.. "- g ;>, ~ o " v .;: v "- ~ 0; f! ~- if (:I v -E o " .~ o p:; .'l 'i3 v "" X v 2 v bJ)oi ~ ~ '-' 0 '" "" ""~ r< e .~~ ~ 5 '" 0 ~ >> 2 g OJ 0; ~.-< o e ~. 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' .:'-: /;//;- I /// /1 I I, / ~'/ I (/ /1/ 1;/' ////:::==-:::---= ~=-=~.:::::- "f~- .:::.-",,~' '$;\,\.':' I','" :::::-:<:S::-I:~ _0'"..;- I' __.." _" ,,' ' 'j I / !" ' ,,"j,__,,8 ;''', """ ,,",II ," ".--" ' , ~ "01, CA ," ' . ';1' / /, //1'" /;/ //1////',// ~~..:::::::>"X"~ /-:.~':::"~~~ \~,~~~~S>\\\\\~,I' - --::::-:-:::: -------::: -'- " -.. " ",' ' ' ' ' " "," " ,/", ,,-'''' ~" - ' ,."...,"_"'0" ' "" ,," " '" ",<f" " ,,",-;X ,*, " ",,,,,, /, " "",..",,"""" I " '" I" "" -", ,",,,,, " ' ,C/ ,,,,,.,,,,,,,,",,,,, ,',/, " " FIl8No.,:Z7a." "..". ,,' ' ","'" ",,' /0"" ,'" ,,,-, ,-," /, , ' ,>J"" " , ", ,<,~ >,,, '" 0.'...""".., MIS " '/ ""V', .,,;~'/ ' ,,,j>"'''''"'''' O~ SION PEAK ,~, ""~ !~;<!l'",,,,,,,<,,,,/0f'CC-"" ~,o".o~^ PROPERTY SECTION 404 ,,,,,~,,,,,,"""';;;?j~1iJ'J'.t&oo- 1m: JURISDICTION [j PREPARED MAP ., 0' "" ~'~OI", .,,~ "=" ' ENVIRONIolENT AL. ' Jensen - INC. "'. 'Aur 3.. Assoclat " ; "~1lO es ~_', ~'l~"11"'BOT;)R!vE . (!l2~) 227':9,~~TE 200 . f"'.LlS/o,H .F.:x:.(!l~)127~iooCA.~ Et__":" .'<:I'"e!I =AL oth~ Water "- =AL rem". ! .~ ! ! , .~ ~::;::.::::- , , , , ~ ! ~ l('j::l>J"". Figure 7. Site Plan i , . ~ . I , I , "- "- "- "' ~I r'="- D~"~l L -- I '{l<'>:>--'<. W'Il1 -," S; T S. BARRrFR AT C!.lBS ^ I ,=~ b!l=~ ~~I a~l_ -:=~j ~- ~ ~~()qWl~{l'ro< 1JoIU)"''''''llII!IC C T 8 8AR!'I!ER AT pqOPERTY FENQE C.T.S. BARRIERS }l(;r"'SCltf -. . / ~ / _"rr!r""""'y ""'" 1Ot..m.,,- !UY",,-~ "=< --- 1JRt.J.~~.trlV<rr!/"'IINrfJt/; I p...,rlO!lOo!:S.",~....1V\W. ~""-Y~l1m_c....~ ............~",B('.tY. 1/'1tl'tRl'i.N'/ 2r''''~<:n<~ l..lUSS1ff:1W:NU....1molI.~ l"!Il!>ll:DPViG "","""!l;ot""'v""""'srm_ rn>i,,rAW:CFrHH; llElm'lll.kA OUTF A!J.----R.ET AIL -~"'>:.oa rIOl7ll-.-waICDI= SO<~....mo; I . .. -aCR<1..OO ,'\;CH~Y, HUNTER &:: MOLLER ~ ",- ~ -N- ~ (.....) '__'001'\. GRAPHlC SCALE ~ 100 i'OC --..- = .-----c ~ l~ ~i>. ~ , ~J #' , IJ€rDlr/(N~ I lCODfTJ()'OPrHJ / ~ WATER QUALITY POND SECTION II(}r ltlSOU ACREAGE SUMMARY 1:17.81 ACRES TOTAL BOU~AflY 2315 t ACRES DEVELOPED fUll 404:3 t .A.CRSe UNDEVELOPED (M:() MISSION PEA.K PROPERTY _ ALAMEDA COUNTY, CAU::ORNIA ~ugger1 - ensen - JA':,~ ~;<,~:~S:'j(\~=~"= p"""" . - SITE PLAN EXHIBIT FOR: STANDARD PACIFIC HOMES ATTACHMENT NO. 2 SITE PHOTOGRAPHS '-. ~ ~, l~_ ~,,".d: ",'. f, . ...'"l'J; .-- _ 30 ...... c .' ~- .-,- ..IIA*/ ' Photo No.1. View north along East Fork of Tassajara Creek on Mission Peak Property access road. r ~- r '" . . t: ( ... , , ...' 'I."" ~~ I '-, .. j { T' ; I ',l j ! , .. ., .,ty ~., of f .J:i ... . t " '~.iI , ,~ ,~ f ..' ~ ~~. '~,~ .' ~~r- ,... , '. , " '" Photo No.2. ;\, ., ;,~ ~,f' :~.. .~~. ., .......~......... lo._ -_...~ __"l. ~- East Fork of Tassajara Creek from Tassajara Road crossing exhibiting metal culvert pipe and riparian vegetation. ... ".1 'r. ~ . i. ., .'~ .~ \ ~..!.... - . iT' ,~ ;:;:..,~.j ~-,' ., .. t:,,~. "'..1 .~........ ...........~' . ......,) ,. . .-=- ...:4:.... ~ o::::r.--:. -' < -~~~ 0 .. ... ~ . . "" ... - "'-,. - _.~. ._ ,.,l\o-j ~ ~~ . .r ;'011'. Photo No.3. Location of Proposed Stormwater basin. Photo No.4. Proposed location of outfall. I . - . fi..\.... 8 11. rf ~. " ,":'!\. '1.' , ,;<:.: -: '. '~~~'" -:...,~ ~. :...~.., . . - ~ ,,'+:,- ,r:'.' .: .' _ '..f ...:-, ~:$:~ :f -------- Photo No.5. View of the Stock pond (Pond No.1), the isoluted drainage swale, and seeps t & 2. u _ _ _ ~.__. --.-. .-'- - --.----~ --.-- ...-~.-.. .- . . -- .-.. ,. A t~,.~ ... 1I''''l _~1 ~ ~..~; j,. -".... -:' - <, . <!'"= .;;.' ... ~ ' - . . ';l-:;--.--~~ ,,-, .. -; . - ..... ~ .r- _ ; .10.-, . _ -'- ~.'W '. ~ .~--' .....*'--:Jw! .. ~ 4 . ~ ....... .......... :" "'. ,. . ." "..... .- I::!. ..~~ 1" ... .... _ _- ~a. ~~ 2~-:#" ~ "'I.. ; .:.- ;J ,..! - " ~ - :~ ... ) ., ... ... ,~ ... '. _. ~ ., I ' --! i ~ -. - I. 'I ;'......t,.; .. .' , . .:~ I i"fJ* ,I . .... . ~ :t(\ '(' , t. ~..... Photo No.6. View of Pond No.2 along the East Fork of Tassajara Creek. Photo No.7. View of sparse understory within the riparian corridor of the East Fork at Tassajara Creek. $!' I < 1:f;{~ ; .;~~ ~ . ~. "~... ' '. 1f..~, ~ 1\l(. ~ .1< .." ;..1t"~'.' '. T./'. A -- . -Jlh/ "'(:) OLBERDING ENVIRONMENTAL, INC. Wetland Regulation and Permitting August 2, 2004 Mr. Bmce Wolfe Executive Officer Regional Watcr Quality Control Board 1515 Clay Street, Suite 1400 Oakland, CA 94612 RE: Mission Peak Development Project Section 401 Certification Application, Dublin, California Dear Mr. Wolfe: 011 behalf of Standard Pacific Homes, Olberding Environmental, lJ1C. is enclosing a Scction 401 Celiification/Waiver of Discharge Requiremcnts application package and a check in the amount of $500 for thc Mission Peak Development Project, located in the City of Dublin, Alameda County, California. We would like to request your review of the enclosed information, in order to issue Section 401 certification and/or waiver of discharge requirements for the proposed proj ect. This application is being eoordinated with the U.S. Anny Corps of Engineers San Francisco District. Enclosed with this letter is material required for a Section 401 Pem1it, Biological Analysis Report, Biological Assessment Report and a copy of the Pre-Constmction Notification (PCN). I will be submitting a conceptual wetland mitigation and monitoring plan and within the next few weeks detailing the Project's mitigation concept and location. This project is covered in thc Eastern Dublin Final EIR prepared in 2002. Please contact l11e with any qnestions or comments your office might have with regard to this project. All conespondence should be sent to my attention at the letterhead address. ] can be reached at (408) 448-2322 if you have any questions. Sincerely, ~v~)/?' ' '-- /ffL--/~/;z'~~ Jeff01berding~ Wetland Regulatory Scientist ec: Nonnan Soares, Standard Pacific Homes 3127 Vistamont Drive, Suite 100 e San Jose, CA 95118. Office: (408) 448-2322. Fax: (408) 448-2010 Email: olbcrding@netmagic.net REGIONAL 'VATER QUALITY CONTROL BOARD SECTION 401 PERMIT APPLICA TION . For The MISSION PEAK DEVELOPMENT PROJECT . ALAMEDA COUNTY, CALIFORNIA Prepared for: STANDARD PACIFIC HOMES 3825 Hopyard Road, Suite 195 Pleasanton, Califol11ia 94588 Prepared by: OLBERDING ENVIRONMENTAL, INC. 3127 Vistamon! Drive, Suite 100 San .lose, Califomia 95118 Phone: (408) 448-2322 - FAX (408) 448-2010 Contact: Jeff Olberding JULY 2004 LIST OF ATTACHMENTS ATTACHMENT NO. I FIGURES Figure No. 1 Figure No.2 Figure No 3 Figure No.4 Figure No.5 Figure No 6. Figure No.7. ATTACHMENT NO. 2 Regional Map Vicinity Map USGS Quadrangle Map Aelial Photograph Development Site Existing Topography Jurisdictional Delineation Map Site Plan SITE PHOTOGRAPHS 11lis report should be cited as: Olberding Environmental, Inc. July 2004. Streambed Alteration Agreement Applicatio17 for the Mission Peak Del'elopment Project, Alameda County, Coliflmlia. Prepared for Standard Pacific Homes, Pleasanton, Califomia. ST,L\TE OF CALIFORNIA - CALIFORNIA ENVIRONMENT.'IL Pf,OTECTION AGENCY SAN FRANCISCO BAY REGIONAL WATER QUALITY CONTROL BOARD 1515 CLAY STREET, SUITE 1400 OAKLAND, CALIFORNIA 94612 APPLICATION FOR 401 WATER QUALITY CERTIFICATION AND/OR REPORT OF WASTE DISCHARGE (FORM R2C502-E) 1. APPLICANT'S NAME Standard Pacific Homes (Contact: Nom1an Soares) 4. AUTHORIZED AGENT'S NAME AND TITLE (an agent is not required) Olberding Environmental (Contact: Jeff Olberding) 2. APPLICANT'S ADDRESS 3825 Hopyard Road, Suite 195 Pleasanton. Ca 94588 5. AGENT'S ADDRESS 3127 Vistamont Drive San Jose, Ca 951] 8 3. APPLICANT'S PHONE & FAX NOS. (email optional) 925-847-8700 6. AGENT'S PHONE & FAX NOS. (email optional) (408) 448-2322 Phone (408) 472-4343 Cell (408) 448-2010 Fax 7. STATEMENT OF AUTHORIZATION I hereby authorize Jeff Olberding to act on my behalf as my agent in the processing of this application and to furnish, upon request. supplemental information in support of this permit application. --~~~--~~~--------------------------------~--~;?~~-~~-~--------- - . l/ APPLICANT'S SIGNATURE DA IE (This must be signed by the Applicant.!!.2.! the authorized agent) _.~ PROJECT OR ACTIVITY INFORMATION I 8. PROJECT NAME OR TITLE (See Instructions,) Mission Peak Development Project 9. NAME OF AFFECTED WATERBODY(IES) (See instrudions) 1'0 PROJECT STREET ADDRESS (if applicable) Urmamed Tributary To Tassajara Creek (From East) Tassajara Road 11. LOCATION OF PROJECT Alameda Dublin Region 2 - San Francisco Bav COUNTY CITYrTOWN (or unincorporated) REGIONAL WATER BOARD REGION 12. OTHER LOCATION DESCRIPTlONS (watershed. latitude & longitude, river mile, etc. Attach map. See instnJetions.) The Mission Peak Property is located on the east side ofTassajara Road, north of the City of Dublin. The Property is found approximately 2.5 miles north of the Highway 580 and Tassajara Road interchange. The site is situated at the fIrst bend in the road way where it curves east to cross over the Tassajara Creek tributary_ The Property is located in Alameda County, just south of the Contra Costa/Alameda County line. The tributary to Tassajara Creek forms the northwestern boundary oftbe site, Tassajara Road forms the western border, and fence lines form all other boundaries. 13. DIRECTIONS TO THE SITE Take the Tassajara/Santa Rita Road exit from Highway 580 in Dublin. Drive north on Tassajara Road 2.5 miles. The site is on the east side ofTassajara Road at it's fIrst bend. 14. PROJECT PURPOSE (6escrib; the reason or PlJrpos~lurlhc overall project. See inst~~(ion~~- The purpose of the Project is to develop residential housing consistent with the approved General Plan developed and approved by the City of Dllblin. Housing demands in the region and the provisions of the Dublin General Plan EIR provide for the development of single family home subdivision on the subject Property. The purpose of the outfall structure associated with the development of the site is to meet regulato.ry agency requirements for regulated discharges to \vaters of the U.S. The outfall will allow for the contTolled discharge of water into the tributary to Tassajara Creek. Rock riprap placement would be required to dissipate outflow energy and protect the outfall structure from erosion. 15. DESCRIPTION OF ACTIVITY AND ENVIRONMENTAL IMPACTS (Provide a full. technically accurate desaiption of the entire activity and associated environmental impacts. See instructions) Grading of the 23.4 acre development area will occur in the southwestern comer of the site where home sites and roadways will be installed. The Project v..rill involve the construction of an outfall structure to Tassajara Creek with impacts to the eastern creek bank above and below the ordinary high water line. The outfall will consist ofa 9 x 20 x 12 foot concrete structure. Sheet pilings will be installed just above the ordinary high water line to provide a footing for the outfall. Three concrete chambers have been designed to dissipate water velocity fTom storm water discharges. One chamber includes rock and 1/4 ton rip rap to slow water fiow as it enters the creek channel at the ordinal)' high water line. The outfall will also include work below the ordinal)' high \vater line of the Creek where a rock rip rap protection apron and coir fabric will be installed. The bank protection will be installed over a J 5 foot wide length of channel and extend 5 feet below the ordinary high water line. Two settling ponds have been designed outside the riparian corridor, outside ofRWQCB jurisdiction, to capture runoff from the development. Waters from the detention pond site will discharge to a larger basin and finally into the outfall culvert. The settling ponds are 50 feet wide by 100 feet long each. These two ponds are prescribed with yearly maintenance to remove all potential accumulatd sediment. 16. AVOIDANCE OF IMPACTS (Describe efforts to avoid Clnd minimize impacts to waters of the State. See instructions.) The project has been designed to minimize the impact area by limiting development to the--[]atest regions on the site. The steeper hillsides have been preserved for special-status and common \vildlife species habitat. Those areas that are lrnown breeding habitat for special-status species have been buffered from the development site by prescribed setbacks. A 100-foot buffer has been established along the Creek corridor, a 200-foot setback has been established from known Califomia red-legged frog breeding sites, and a laO-foot setback has been established from a knO\VI1 California tiger salamader breeding pond. One California red-legged frog breeding pond has been designed at the top of the creek bank, just outside the riparian areas. In addition, a permanent concrete exclusion fence has been designed to sunoW1d the entire development area such that the t\,,:o special-status amphibians can not enter the site during or after constuction. Riparian revegetation win occur along the creek corridor and cattle exclusion will result from development project. 17. ENVIRONMENTAL DOCUMENTS (list any non-CEQA environmental documents that have been prepared for the projed and/or the pmjed site. Provide the date of the document and the name of the individual, firm. or agency that prepared it Provide a copy of delineations and endangered species surveys. See instructions,) Lake and Streambed Alteration Agreement, Olberdiil.g Envirotllnental, July 1004 Nationwide Pennit 7, Olberding Environmental, July 2004 Biological Resources i\nalysis Repon, Olberding Environmental, July 2004 Biological Assessment Report for California Red-Legged Frog and California Tiger Salamander, July 2004 DREDGE & FILL INFORMATION 18. The following items mus1 be completed for each action where fill or other mi'lterial will be temporarily (T) or permanenUy (P) discharged to a wetland or other watemody. and wl1ere material will be dredged from a waterway (add additional pages as necessary), Provide a map showing tile location of each action (See instructions) Imp I LOCATION REASON FOR AC1l0N AMOUNT AND TYPE OF MA TE- SURFACE AREA OF FILL LocatiDn (show on plCln & indicate walerbody) (See instructions) RIAL (in acres and/or linear feet; specify (T) Number (in cubic yards. see instrudions) or (P); see instructions) I Tributary to Tassajara Creek outfall structure (erosion 3-5 cy O.OOlP control) Page 2 ------,--- ._--._-~ ~-~ --- -~ ~-- -- -- MITIGATION ] 19 MITIGATION (Describe the size, type, and fundions, and values of the proposed mitigation. Describe success criteria, monitoring, and long-term funding, management, and protec_ tion of the mitigation sile Attacll a Mitigation Plan if needed. See instructions and conlad Regional Board staff for additional assistance.) Two settling ponds have been designed outside the riparian corridor to capture runoff from the development. \Vaters from the detention ponds will discharge to a larger constructed wetland and finally into the outfall culvert. The settling ponds afe 50 feet wide by 100 feet long each. These two ponds are prescribed with yearly maintenance to remove sediment. The speed of water flow will be reduced prior to entering the creek and water will be filtered through this series of detention basins that will result in the settling of fines and other sediments. The construction of the outfall and detention basins (outside of regulatory jurisdiction), will provide for the maintenance of high water quality within the Tassajara Creek system. Approximately 0.14 acres of Con- structed wetlands will be constructed within the larger water quality basin along the top of the bank to mitigate the 0.001 acre of impact to the tTibutary to Tassajara Creek, Mitgation has also been specified for the special-status amphibians within a Biological Assessment Report for the project. . / CEQA 20. CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) Documents: Indicate the status of CEQA documents preparedJor the project (see instructions). TYPE OF DOCUMENT STATUS DATE COM. TYPE OF DOCUMENT STATUS DATE COM. PLETED PLETED (or expected to be (or expected , . complete) OJmplett Initial Study -Choose One- Notice of Preparation -Cl100SC One- Draft Environmentallmpacl Report -Choose One- Final Environmentallmpacl Report Complete Negative Dedaration -Choose One- Mitigated Negative Dedaralion -Choose One. Notice of Categorical Exemption -Choose One- Notice of Statutory Exemption -Choose One- Exemption Number' Exemption Number: Other (describe) .Choose One- Notice of Detennination~ -Choose One- "'Note: A Notice of Determination or Notice of Exemption from the Lead Agency is required before a certification or waiver can be issued. Lead Agency: Contact: Telephone: State Clearing House Number: ADDITIONAL INFORMATION 21. HAS ANY PORTION OF THE WORK BEEN INlTlATED? IF YES, DESCRIBE THE INITIATED WORK, and explain why it was initiated prior to obtaining a permit. Indicate whether any enforcement action has been taken against the project. YES 0 NO ii<J No work has been initiated 22. HAS A FEDERAL AGENCY OR THE APPLICANT PROVIDED PUBLIC NOTICE OF THIS APPLICATION FOR WATER QUALJTY CERTIFICATION? Federal Agency: YES 0 NO [gJ Dale: Type of Notification: Agency Name and Contact: Applicant YES 0 NO [S] Date: Type of Notification: Media Name and Contact: IF PUBUC NOllCE HAS NOT BEEN MADE, provide the name, address, and phone number (if available) of adjacent property owners, lessees, etc., and any other par known to be interested in the project: Page 3 ~-- OTHER PERMJTS (,-i:.;! Diller local, state or federal kenses. permits, and agreements ihat viill be required for any consiruction, operation. m3inlenan~~'or olher actions associated 23 with the project Attach copies of all draft or final documents. See instructions,) AGENCY CONTACT TYPE OF APPROVAL PERMIT OR 10 DATEAP. STATUS DATE OF (with phone number) NUMBER PUED ACTION SFRWQCB Section 40] Cert Pending 7/25/04 In Review US COllJS of Engrs. Bob Smith - 415-977-8450 NWP07 Pending 712)/04 In Review Ca Dcr! Fis)] Game MarciLl Grefsrud -707-944-5559 SBAA Pending 7/25/04 If! Review US Fish Wildlife Dan Buford - 916-414-6600 Section 7 Consulta- Pending 7/25/04 in Review lIOn -Choose One- -Choose One~ -Choose One- -Choose One- City of Dublin . Gr;]ding Permit Pending 7/25/04 In Review Other or Lac;]] Agency -ChooseOnc- 24. OTHER PROJECTS (List and describe other projects implemented or planned that are related \0 the proposed project. or that may impact the same waterbody, See instructions, Add additional sheets if necessary,) DATE IMPLE- PROJECT NAME DESCRjPTION WATERBODY AND WATERSHED MENTEDfPLANNED None 25. Application is hereby made for a permit or permits to authorize the work described in this application. I certify, under penalty of perjury, that this application is complete and accurate to the best of my knowledge. I further certify that I possess the authority to undertake the wori< described herein or am acting as the duly authorized agent of the applicant. ~---, - ---, 11;~" .." zfi~ // /, ,,"" /'./ ,- -" , ^--- ' - ------~~'a:::~__?~_~_-'?y ~~"~~~&A~(~--I/;)t/i SIGNATURE OF APPLICANT DATE // SIGNATURE OF A T DATE The application must be signed by the person who desires to undertake the proposed activil)l, (Applicant) or a duty authorized agent' e statement 'in Block 7 has been filled out and signed. / Attach fee deposit (see Instructions page 7) and any additional documents and submit this application to: SFBRWQCB Attention: 401 Water Quality Certification 1515 Clay Street, Suite 1400 Oakland, CA 94612 Note: This form, FORM R2CS02-E, was designed for electronic use as a Microsoft Word document or template. For assistance using this form or to relay suggestions on how it may be improved, please call 510-622-2330. If you would like a standard, non~electronic form, please c311510-622-2300 and request 401 Application FORM R2C502 - Non-electronic version. Page 4 . ATTACHMENTS . Figure No.1 Figure No.2 Figure No.3 FigUl-e No.4 Figure No.5 Figure No.6. Figure No.7. ATTACHMENT NO. ] FIGURES Regional Map Vicinity Map USGS Quadrangle Map Aerial Photog,"aph Development Site Existing Topography Jurisdictional Delineation Map Site Plan Figure 1. Regional Map ~~~ .g .g ~. ~~<g. <00- ;!;lO Nr.l..,l. aOeD gg~ ,.a", < '< 0 OG')g ~8~ "Cao ~-g~ ~o- g.oo ~~~ g c;t~ 30::> ~~~ gg ii ~~g ~~~ ~~~ ::>::L' a. <0 :P :n::I= 'ej":L Q~~ 3co" ~~g P::i ...,a. o' 8a z"l'! ii g~ ;;!a 0.. ::To ::>", g-g <2.3 CD_ ~~ ~i <0 ::T or iil .. CD :2 Q P. ";} .. a. III Iii 5" o c- a. III 5" 0' 3 !!. o ::l iD S ::l :E ~ "C ~ :- o ::l a 3 o OJ ::> .. a. iD ::l III So ::T ~ o " @ ::I: !ll 3: .. 1> g '< :;- CD " <:: o o ::> 5" ::c ., ;< !"l. o OJ ::l '" a. i" 1f-a> ~ ~. .... 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" III n 3i n III o o- m III ::J OJ .., r::: ::J o ."., '0, 00' :t"'. ~ o III -< o ~ -0.. en l>> ::J ,. .., l>> .z ::J (') ~ 0' :A (') ~ 0 ~ ~ r m < iif (f) ~ "'0 Q) ;D c: c: Ul '<:: ..., ~ 0 ;;g :=! n- O' ::T ~ 3 0 0 m ~ ::J 3 Q.O ~ '< S ~. P(J) - 00 c~ s: CIl III :s 'T1 .., III ::J n iii" n o ;..1 ~ iii" 3 .. Q. III o .<ij; '0 o ~: !!! /ey0 ~ /~. ~ III ~,.".., ~ !~,~rg OJ! :::s ~.~ : a..~ = ,'m ::I :1 ~ jOb _c~ ~ ~ ~ ~ CI) !!. ..P E ..... en III ::s r.i. .. <; g @ Co - I i3 ~ tJ -0 ' X p<O III I!!.IlI '< -Ill _ ~ _II!::;... .._0 I>> p::;; 0,:" \~.. ... ,'0. a. ff W "ilI ::J ,;J III 3 o ::I o " .. II '" CD ::J o ::l n~ -0, c: : g'; ::J ' ~~ .,) :: 5. }:, -:'7 "TI A m <D ::::S' ~ W :::n . '" 00: o ;UW ~~ ~ o (J) -~ ." III tT 0" '1J S o m :J: '" ... o c: <D Ul .... :0 o . llJ:I. 5:' .. ! ~-.ff ~ :f .!" CI) N o ... ... ~ o o o " '1J :l _ i:i' _ g ~ ~~ .., tT ~ ~ c. ~ lOt"" ICO () iil ~ o ::l )> a a g. :.' Ot.; o m ^ <D '<: Om @ J>. ::l ~ o o a. \:. ~.. ...........~. ............~.::.,....-.......~..:'~~ .:~:~ ..............."...... ....- ~ .......,.. ~ o -i ..., III n '< "TI @ ::l o :::J" () m 3 _ ..:FT" ~.................I............................j (~ },......;. ..................,..!.".~~::.. .................1-.....; ". '. ':\... ;1: III a r .. m n 9' 11I0 a "'0 (Q 'D . .~~. ~..~ o In S' n ~ o = '<c =::::J mo lOO "'5" ""7 c;- o<:: ~ o o "=>"~ '"-0 !l>~ :::1. ~ ~ o o o 00 . '.... :"'01' < ~ !!!. ~ l: o 0 ~ "Tl <6' e CD ::; ::0 <D <9, o :J ~ s: Q) -0 ~ {fJ ~. o ~ -0 CD w r: -0 ..., "--'" 0 '. .............~ ..'..-g ~ ~..... '. "';: ............. ..:" "\ (Q (Q (D. m Figu re 2. Vicinity Map "'.. >. -e Q) a. e a.. ~ ctl Q) D- c o "00 (/) ~ a. ro ~ ~ c T5 5> C\! Q) ~ :J 0> u: .i=;- t c. o Cr. ~ CO (lj c.. c: o in 1Il 2 ~d r:: : . ,r....e<;t:i 0 tOl'U",.1 ~ C III II) ....:teel<vieW.Or '. .: v ;:; """ a:. POQ -:;.., ~~ .5 =s ::I Q '. - (j) .. r . .a::: . . .".:- ..... c-i ,';: ~.~ (I) --r-' r: t5 aNv s!^ed V5 .cOO :>>.c CD "7-:'. . ~.. ."~ -.' 1E'- .. 0" ~. ~ ~. ..-r- .~ ~ 7. ....0. :1:)~ z.. R~ .l?lI~r~ssei Pet uOi/e.::!:. '._: . ... . : q c; '0 III l'O CD G. .s :s . a .;~i.t~ds\f"': ~'-:-'. . ; : '.;: : 'JQ:~!pJa4iH -0 :> ai "- II) -0 o "- OJ .... . 'HaefendaUr .':0'.::: . ~ ~ ~ Pel PloW\i , en .c U5 .t;' ~ o U <=", roOl Ero o:=; ::::::.> en .c U5 P(J Al.ia46noa .... ..::: '. ii5 I ~ u... "C CD I~ OJ III I 15 :S I. I~ I I -'. I ~ ~ .~ :0 ::l a ,I:' ~ ! . 1 ;i 14 gl" !! # I ...e; ~ ~. L iP m .r:: p ..., IQ ri "0 OJ C Q o '0 E 00 1E of; c .. .. :J CJ or ,s ;?> .. OJ 1ii :;: l() o OJ :c @ .. ~ 1: o .c S " c " 'C OJ c: " U E ,g C Q c; .. g OJ C. ,s 1: c '" .>< .l!! c .Q OJ E ,g of; .. m "0 :J '0 .E " 1ii "0 .. ~ 'd .. ~ .. e .. E Ol ..-.:: 'ii= e< aicti -.. ~~ .;::g O.c "u ~~ E5 ~J ~al 0.:= ""0 -'=0 -c~ m@ ~-oB mc""" e~c: !l~~ aei ;:;~GO < "'"0 .-.:: c ~~; ~g~ :i~ :::::00 ~g~ en E ,,~ g !f~:E Uc-'= ~.Q ~ ".c 1I) g ~g :E gi -GU 8>->- C'l,Q,C ~gg Olao ~"'''' @EE -0'" -a.~~ "t c. c. >-00 8~g I . I;' E o Is .- C Ill" 1/1' III Gl .ii: I Figure 3. USGS Quadrangle l\1ap ~- . :.... ~.., .~./:::. <: IJ ~. jj l' ,. II '" .. , Lf>> r I . .;._' .-.-.'. l,:'{' " >~ " ~- . '. , , ! / ; ~ :,,:':'~':: .:,.,'" \ I . ,. . .... Sp"ings ~"'--"~" ,,/ '.- .::>. . TASBA.JAR.~I:'CREEK ': REGIONAL. P APo'K _ r" :/:,,' -, ..... : 4'" . ": .- . .' . -:-' J' : ,". ::;~:";... ~ '- :.. . '$pri,7lB '. ,~ ';(': '" (~ . '0 i { . . --. . ., " - :~ .. . ,.... .->: ',' ,l;~~:,": . t . 'e/J :. ~:: .: "l.~ . . ~r ..: . ',~ "~ :;!':,!..:::~('~::. ';';1 lFngl!lre 3 Figure 4. Aerial Photograph c. :: c r l. ". .;;; " ':: :...'1!1 ~ .... ' ..,., " Figure 5. Development Site Existing Topography , I ;1 :, .1 " :1 :1 'I if 'I 'I ~ I :i :1 ,I 1[ I I I ~ f L ~ I !I ~ I il . :1 I' :[ 'I I '! 11 !I :1 , \ , \\ , , \ , , r I . , . t , , I ! I ! .t// L1'" , h'7 -~ /t-/"/:.; .'> ;',S."~) 2 . cy- '~x ' - ,,:.: "" .,<:z:'.<, " GRAPHIC SCALE ~ugger1 - . ensen - JAz:,- ~,~~:::s .w"'" ""= ....ONE. (925) 227-9'00' H" (~2~) 22:-gJOO MISSION PEAK o 100 200 ~ "" -<I PROPERTY EXISTING TOPO DUBLIN. CAUprORNtA : IJf rur) llDollwlOOn.. DA.rr: JmvARY 20, 200J ..(l8NO.: 0210:57 Figure 6. Jurisdictional Delineation Map l ,\ {oolaledW..thnd futurt ~.AL o,,~ WaItt" TOT'" hoisted Dnin.~e S~ 'OT'" ; i ~ ,,,.. '~ ':.';:'::::- I L~: :"O: Prnp,",H..._ 111,:Ji!iJ'~~;f" ;;I{~F-\ ~J2I??fJf1~!~l;~~; '~~;~ ;:;{1M~~(!I,#~~I~Wi!,Wlilill'~~~~lilill/I,~:=~~~~, :1, .' 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'I" '=/ // '-:jf;~'J" >>>%;C~~ /;, ,/ //"..:';:;;.;.-,:: .?/;'-;'//;:/'.,/ ".'"/",;;,-;;" 1(11/0/1/1",..1, "/'i. ////,.//';.;:~", "::? ..,. /,_~_ . " '''''.. ,~ /' /".,~~~ <;~~...~r A= "c-gelallOIl 3,920 o 0; S..ep No 1 23, ~22 ~ ~ ~ D 54 Sf"ep ~D 2 6,930 0" o 22 PDnd NQ 9,380 OonQ!';O 2 43,752 '" M""""'(1 Peak Property Other,," Itcr!l r;nc:~r A,;;~r &.m~ DeKripOOll 1,460 East r'o::l::7as5aJa::a C~eek 14 0.4" 1,(60 o " DeKnpnon 155 11 ... Sh,ndard Pacific H"mes Mi"s'"n P....k Property Al"meda County, CA r~ j nuggert - 'l'I'.Jensen - ;;, 'A,zar &. Associates " '.eill CHABOT 0RlV( SUITE: 200 . ""LASAATON. ~ ~ ~.; f'1i0N(; (92~) 227-~OO. FAX: (n5) 227-;JO(J ~ ~.," '-"- ~ ,....( .~ ~ PROPERTY SECTION 404 JURISDICTION MAP PREPARED BY: OLBERDING ENVIRONMENTAL INC. MISSION PEAK ~ WUen 0''''. US...bj-focllo ~S.CtiOn4040'Ih.C'...nw..torAct ~iI. No., vlle,s DUBLIN. CALIFORNIA Do'oAp""''',;':'',,::! Figure 7. Site Plan , i , , . r i . I . . ~ ~ ~ , " " 1. '="","0" a=-oL~_ 19O5>/'AII C T B. BA",RI!;"R~.e. . j -d 1~' fY~'\.._ ""''''~~ 1,1 --- IQCI/V/,~ --1 I ,~ I \--.~~fARrIIlJ~ 1hUJ"'7IIr-.c C i 8 B"'RR1J:"A AT PROf>ERTY F"F~ C.T.S. BARRIERS I([)T,-0 suu: -, .. / ~~ / 1#QI"1f]!""""y fl.AI< ,~'X ---- _"T11'_ /UY""._ "=n . I>IrJ.rlfCUS.rr~~",....~ / ~Ulrooo..c:;..".,.~<1l'f.>I'<<:..// "-"l"/:O\('~="'roI1(JIT'jl V'llWIPlNj ~~z..~~~ ". 'IIfII1;YM.Q I7'CI<M: iYl_~_'lIl S1!tI.H:ITPlN: SECTION A~" UTF ALL DETAIL o _"'''''''-' -"'__aiOJI= r_~"'r7H: RiCHEY, HU!'ii.::R &: MOLLE!'t ,,- J , -N- ~ ~ I GRAPHIC SCAi.E o 100 ilOO .....- - I"""') L ..... ~ 100 ... ~ ~ v:rrNTIrIi~ ~ , ~ , C~ .di>. ~1 " '-lJC;[}IrQlP!l\O ~ ...-/ WA-ER QUALITY POND SECTION I >K>TroZN.[ A..G.BJ.;:AGE SUfvlMARY TOTAL BOUNDARY IH.B: ACRES OEYaOP'EO 18&Il 23.15 t ACREe DEVELOPED ICIS~ ....9 t ACRES UH MISSION PEAK PROPERTY "ED A ~ CAU:=ORNlA ALA... , ~ugger1 - "'Jensen A..ssoc.lates zar&.. . "'f-AS""T?<.""'4>a!l 'A .~ ""...." ""''''_ ~': ~, ',,": "7_"= ~(''-')''''-'H>:l ITE PLAN EXHIBIT S STANDARD P"CIF1C HOlES FOR, A TTACHMENT NO.2 SITE PHOTOGRAPHS ~. l.."u~ '. --" ..~ ,~~.:: ,- ,::~~':; , . ." - . I ~ ~i.1 4. ..... . . ....,.. '.;: "... .~... ,~'s. IA 1'\ .~....~ r".~.,.' ". ~ -., . . '_~l~Q: . ..'....~.. .-~ ~ '~'-,. ___I ~.,). ~. .~... Photo No, l. View north along East Fork of Tassajara Creek on Mission Peak Property access road. i( .1.-.:. . ".~ .,..... ~ It ., ~ 'f ,. ':'L I I f t ~ '. _. ~. , ".1 11: r' to. -/ ~- _, I , '\, 'OIl ,-. .. '. ,f ""t .r~ ~.~ ',. ..1:" '~.'~-f ''''i'. . { , I ..,~ . , .- .""" "--'~.:.r~ ,........,. 'jt ~ -' ~;t . t e.~'~ ~: /. 4o' ~.t,_. l~"" ~l ~ .~.;;,. ~ .....~ I&i.... --!. .~. .'. -~..: . . , ~ . f..'~, ." 1 . I ~ll1i f~ ~ r ,J.-....~, ". ~ . ~-1 ~\ ;i- ~ :..~~~.~ ",'~ ,:~ . I . . ":_ ..to'. .' ~ .. ,1...~' . ' .. if ~ ~,.~. ,.:' ~ ~''':;' r. ~~..~ '"', !I" ~ i...... " , .,. " ~I I r- Photo No 2 East Fork of Tassajara Creek from Tassajara Road crossing exhibiting meta' culvert pipe and riparian vegetation. ~~ ....... I,. f"~:', .. .(1 j:, ~....!", " J !~,S .c: ~ ,~ ~.. 0 ,.'... " I' .. ..~ .' Photo No.3. Location of Proposed Storrnwater basin. Photo No.4. Proposed location of outfall. 8 ~~., . - 1': .. . !l - .~- .........~~ #: . li ~-. . ;.0- r' ~ ~ 'e Photo No.5. View of the Stock pond (Pond No.1), the isoluted drainage swale, and seeps 1&2 '. -'J;.;'" . ~ .,. ""'7" 10"'.'1 . .......~ .'. .... .. ri1i. ~ ...;. ,;.~..; ~ - .. .~- " . ~l::i::.4,o. ~ ~ ; .+ ~ ~":,J ~~ :i- ~.-~ -, !'(...-w;.... .. .,. -~ " ,;.. ;C '-_.. . .~,. ~ t.., ..,..;.~. :.. ~ !} -' ... ,# ...d':-"" Photo No 6. View of Pond ~o. 2 along the East Fork of1 assajara Creek. --,,"- --- t I .. ~~ -I ~.: f:..-' . .~. _.1 ... ..:.. ~'. i .......":' -.., ~ ~ ,. '.. 1.. .t~ .. .. ... .;. ~ .~. .-,...; ":i~*",' ... ..... .- ~'~. "- 1r.I' '~"~_'J .' '-'''.' '-- .~ .. - t .. . ,1>' I. , '-.;>' '. .... ~ ~ ".-. ,. ,.~..... ~ "'" "... .;;..".,... (. N. . :~.:~,:; ~ .' """ . - .~ ":-,~_...;~ - . "~~")." . - Photo No.7. View of spar-se understory within the riparian corridor of the East Fork at Tassajara Creek. t ~ .. tIl_ _,- ~ C'~ I . " . _ If'~J- I - I ..--- - ....- _.-:: 40 . ---: ...~. ., .. .. .,=- . ... ... ..... ~ ... - ~.~" -..~.~.~.",,~ ... . 4.; _oJ .,;', ~.......... ~ ....... ~,..,.. !."'~~. ,_ _j' .~~ _ _ ~.-:..,';.(." __'.~_" "'. ~). "" ~ ::;.-~ ........_~...4 -.~ ..~'!"'* ..... - . s . "S..~ ~ - '" " . :.ow: -. ...~......tAt ". ..- * ,. . ~~... ~ ~ ~::~-'G.(:;..:~,.. u..~ ... :~'., ~.' ;J ~.' .,,jO.;I1 Y' ..~ . '" ;... ._ ~~..Jtt _ "i-:' ~. .' ~ ...::-...~~.~~ Photo No.8. View of proposed deHlopment area.