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HomeMy WebLinkAboutItem 4.01 Jordan Ranch Annex i STAFF REPORT DISTRICT CLERK FALCON VILLAGE GEOLOGIC HAZARD File # C~ ?~?®-[~[D~ ABATEMENT DISTRICT DATE: April 5, 2011 TO: Honorable President and Board of Directors FROM: Gary Huisingh, Interim District Manager SUBJECT: Resolution Setting a Public Hearing on the Annexation of the Jordan Ranch property to the Fallon Village Geologic Hazard Abatement District Prepared ey: Mark Lander, City Engineer, for Gary Huisingh, Interim District Manager EXECUTIVE SUMMARY: The developer of the Jordan Ranch property, in accordance with the conditions of approval for the project, has submitted a petition to annex the property to the Fallon Village Geologic Hazard Abatement District (GRAD). This item is the first step in the process to annex the territory. State law requires that the Board of Directors adopt a resolution setting a public. hearing to consider the annexation and that the District notify the property owners within the territory proposed for annexation by mail of the hearing. FINANCIAL IMPACT: There is no immediate fiscal impact. Once the territory is annexed to the Fallon Village Geologic Hazard Abatement District and. a funding mechanism has been approved by the Board of Directors and affected property owners, the costs associated with the operation of the Fallon Village GRAD will be offset by assessments paid by property owners within the District. RECOMMENDATION: Staff recommends that the Board adopt the Resolution Setting a Public Hearing on the Annexation of the Jordan Ranch Property to the Fallon Village Geologic Hazard Abatement District. k , Submitted By Revie d By Approved By Interim District Manager Assistant City Manager City Manager Page 1 of 3 ITEM NO. ~ d I DESCRIPTION: On December 4, 2007, the Dublin City Council formed the Fallon Village Geologic Hazard Abatement District ("the District"). The members of the City Council serve as the Board of Directors of the District. Division 17 of the California Public Resources Code establishes legal standards for geologic hazard abatement district ("GRAD") formation, GRAD financing and the scope of GRAD authority (Section 26500 et seq.). Those provisions specify that territory can be annexed to a District and that the Board of Directors of the District annexing territory is to follow the procedures for the formation of a District. California Public Resources Code § 26550.5 provides that. proceedings for the formation of a new GHAD~ may be initiated by a petition signed by owners of at least ten percent (10%) of the real property to be included within the proposed district. A petition to annex the Jordan Ranch property to the Fallon Village GRAD has been executed and submitted to the clerk of the Board of Directors of the Fallon Village GRAD. The petition was executed by the owner of the entirety of the property proposed to be annexed to the Fallon Village .GRAD. The adoption of a resolution setting a public hearing, on the annexation of territory.to the Fallon Village GRAD is the first step in the annexation process. Under the Public Resources Code, the Board of Directors must adopt a resolution setting a public hearing and noticing by mail the owners of real property to be annexed to the Fallon Village GRAD at least twenty (20) days before the date set for the hearing. Property owners may thereafter object in writing to the proposed annexation to the Fallon Village GRAD. If the resolution is approved, the Board of Directors will hold a public hearing on the proposed annexation of the property to the Fallon Village GRAD on May 3, 2011. If it appears at the hearing that the owners of more than 50 percent of the assessed valuation of property within the territory to be annexed object to the formation, the proceedings must be abandoned. At the close of the hearing, the Board of Directors will decide whether or not to annex the territory to the Fallon Village GRAD. In conjunction with the annexation, the Board will also levy an assessment on the territory proposed for annexation. Based on a draft Engineer's Report prepared by the petitioner, which provides a detailed analysis of costs associated with the District, the annual assessment is proposed to be $521 per residential unit and $0.055 per square foot of habitable non-residential space in the subdivision. This assessment is subject to refinement and will be considered a future date by the Board following compliance with the state constitutional requirements (Proposition 218) governing assessments. NOTICING REQUIREMENTS/PUBLIC OUTREACH: A copy of the Staff Report was provided to Mission Valley Properties, owner of the Jordan Ranch Development. Page2of3 ATTACHMENTS: 1. Resolution Setting a Public Hearing on the Annexation of the Jordan Ranch Property to the Fallon Village Geologic Hazard Abatement District, together with: Exhibit "A" to the Resolution, the Petition for Annexation of Territory to the Fallon Village Geologic Hazard Abatement District Pursuant to Division 17 (commencing with Section . 26500) of the Public Resources Code of the State of California, and Exhibit "B" to the Resolution, Notice of Public Hearing on Annexation of Territory to the Fallon Village Geologic Hazard Abatement District G:\GHAD\Jordan Ranch -Fallon Village GHAD Annexation\staff.report setting hearing on annexation (3).doc Page 3 of 3 FALCON VILLAGE GHAD RESOLUTION NO. -11 RESOLUTION OF THE BOARD OF THE FALCON VILLAGE GEOLOGIC HAZARD ABATEMENT DISTRICT SETTING A PUBLIC HEARING ON THE ANNEXATION OF THE JORDAN RANCH PROPERTY TO THE FALCON VILLAGE GEOLOGIC HAZARD ABATEMENT DISTRICT WHEREAS, this Resolution is adopted pursuant to the provisions of Division 17 (Section 26500 et seq.) of the Public Resources Code, entitled "Geologic Hazard Abatement Districts"; and WHEREAS, on December 4, 2007, the City Council of the City of Dublin adopted Resolution No. 216-07 approving and ordering the formation of the Fallon Village Geologic Hazard Abatement District ("Fallon Village GHAD") and appointed itself to serve as the Board of Directors of the District; and WHEREAS, Public Resources Code section 26581 provides that the Board of a Geologic Hazard Abatement District may annex territory to the District by following the procedures for the formation of a District; and WHEREAS, the' Petition, attached hereto as Exhibit A, requesting annexation of the Jordan Ranch Property to the Fallon Village GHAD, was submitted to the Clerk of the Board and is substantially in the form described in Section 26551 and 26552 of the Public Resources Code; and WHEREAS, the Board of Directors has reviewed the Pian of Control presented with the GHAD Petition and has determined that the health, safety and welfare require the annexation of the Jordan Ranch Property to the Village Geologic Hazard Abatement District ("District"); and WHEREAS, the Board of Directors intends to schedule a public hearing ("Hearing") on the proposed formation of the District pursuant to the requirements of Section 26557 of the Public Resources Code; NOW, THEREFORE, BE IT RESOLVED by the Board of Directors of the Fallon Village Geologic Hazard Abatement District that: Section 1. Findings and Determinations The Board of Directors hereby finds, and determines that the above recitals are true and correct and have served as. the basis, in part, for the findings and actions set forth below. Section 2. Public Hearing Scheduled The Board of Directors will conduct a Hearing on the proposed annexation of the Jordan Ranch Property to the District on May 3, 2011; at 7:00 p.m., or as soon thereafter as the matter can be heard, in the City Council Chambers, 100 Civic Plaza, Dublin, California 94568. At the Hearing, any objections to the proposed District shat( be presented. - - - _ Page 1 oft ~ ATTACHMENT I ~9. Section 3. Notice of Hearing The District Clerk shall mail to each owner of real property proposed to be annexed to the District as shown on the assessment roll last equalized by Alameda County a notice of the Hearing ("Notice") in substantially the form attached hereto as Exhibit B. The Notice shall be mailed first-class, postage prepaid, in the United States mail and postmarked not less than 20 days preceding the date of the Hearing. The Notice shall include a copy of the GHAD Petition and shall indicate where the. Plan of Control may be reviewed or duplicated. The Notice shall also set forth the address where objections to the proposed formation may be mailed or otherwise delivered up to and including the time of the Hearing. Section 4. Objections to Formation At any time not later than the time set for hearing objections to the proposed formation, any owner of real property within the proposed District may make a written objection to the formation. Such objection shall be in writing, shall contain a description of the land by lot, tract, and map number, and shall be signed by such owner. Objections shall be mailed or delivered as specified in the Notice. If the person whose signature appears on such an objection is not shown on the assessment roll last equalized by Alameda County, the written objection shall be accompanied by evidence sufficient to indicate that such person is the owner of said property. PASSED, APPROVED AND ADOPTED this 5th day of April, 2011, by the following vote: AYES: NOES: ABSENT: ABSTAIN: President ATTEST: District Clerk G:\GHAD\Jordan Ranch -Fallon Village GRAD Annexation\RESO setting Public Hearing on Jordan Ranch Annexation (3).DOC Page 2 of 2 9 CSC) INCORPORATE D PETITION FOR ANNEXATION OF TERRITORY TO THE FALCON VILLAGE GEOLOGIC HAZARD ABATEMENT DISTRICT PURSUANT TO DIVISION 17 {commencing with section 26504) OF THE PUBLIC RESOURCES CODE OF THE STATE OF CALIFORNIA To: The Clexk of the Fallon Village Geologic Hazazd Abatement District ("GRAD") The undersigned owner of land within the boundaries of the territory proposed to be annexed to the GRAD hereby request that the Board of Directors of the GRAD ("GRAD Board") initiate proceedings to annex the territory described in Exhibit A {"Legal Description") and Exhibit B ("Boundary Map"), attached hereto, to the GRAD pursuant to Article 3 (commencing with Public Resources Code § 26550) and Article 4 {commencing with Public Resources Code § 26561) of Chapter 2 of Division 17 of the Public Resources Code 26500 et seq.). Said owner is the owner of all the territory proposed to be annexed. (a) This petition is made pursuant to Division 17 of the Public Resources { Code with particular reference to Article 3 (commencing with Section 26550) and Article 4 (commencing with Section 26561). ~ I i (b) Opposite the signature of the petitioner is an indication of the lot, tract and map number or other legal description sufficient to identify the signature of the petitioner as that of the owner of land within the texritary proposed to be annexed to the GRAD. i (c) Opposite the signature of the petitioner is an indication of the date on which said petitioner's signature was affixed to this petition. (d) The following documents are attached to this petition and are incorporated herein by this reference as if set forth in full in the petition: 1. A legal description of the boundaries of the territory proposed to t be annexed to the GRAD (Exhibit A ; i 2. , A map of the boundaries of the territory proposed. to be annexed to the GRAD Exhibit Bj; and s 3. A Plan of Control for the Jordan Ranch development prepared by an Engineering Geologist certified pursuant to Section 7822 of the California Business and Professions Code, which describes in detail geologic hazards, their location and the areas s affected thereby, and a plan for their prevention, mitigation, abatement and control thereof xhibit C). i f 4 7s2s.ooo.oao _ - - - -s- , March 7, 2011 EXHIBIT A 7'o~-~h.e. R.~solv-l~to?~? y ~ ~9 GEC) INCORPORATE D Exhibits: A -Legal Description B -Boundary Map C -Jordan Ranch Plan of Control BJP-ROF Jordan Ranch, LLC, A Delaware Limited Liability Company Signature: ` , I ` r Printed Name: ~AOp~.~o~tcl~ Title: Mp~i/.6+dG M~NtB~ Date: 3~R~ It Assessors Parcel Numbers: 985-27-6-4 and 985-27-7-4 i j i { i 1 i 1 4 S i f 7828.000.000 ~ March 7, 2011 F J i S y9 . 98388140 City of Dublin County of Alameda Exhibit "A" Legal Description " Real property situate in the City of Dublin, County of Alameda, State of California, being a portion of the parcel described in the deed recorded in document 98388140 Official Records of Alameda County, described as follows: Beginning at the northeastern corner of said parcel, said point being the Quarter Comer of Sections 34 and 35, Township 2 South, Range 1 East, Mount Diablo Base and Meridian; thence along the eastern line of said first parcel, South O1°29'39"West, 224.44 feet; thence South 00°46'42"West, 2709.61 feet to the southeastern comer of said parcel; thence leaving said eastern line and along the southern line of said parcel, North 88°30'52"West, 2597.08 feet to the southwestern corner of said parcel, said point being on anon-tangent curve to the left having a radial which bears North 62°31'08" East, a radius of 399.94 feet, a delta of 10°23'53"; thence leaving said southern line, northwesterly along the western line of said parcel and said curve an arc length of 72.58 feet; thence North 37°52'45"West, 324.96 feet to anon-tangent curve to the right, having a radial which bears South 71°30'09" West, having a radius of 1288.00 feet, a delta of 00°06'47"; thence leaving said western line and northwesterly along said curve an arc length of 2.54 feet; thence North 71°36'56"East, 1.00 feet to anon-tangent curve to the right, having a radial which bears South 71°36'56" West, a radius of 1287.00 feet, a delta of 00°02'14"; thence northwesterly along said curve an arc length of 0.84 feet to a compound curve having a radius of 87.00 feet, a delta of 14°59'25"; thence along said curve an arc length of 22.76 feet; thence North 03°21'25"West, 16.40 feet to a curve to the left having a radius of 238.00 feet, a delta of 11°12'15' ;thence along said curve an arc length of 46.54 feet to a reverse curve having a radius of 1275.00 feet, a delta of 06°06'50"; thence along said curve an arc distance of 136.05 feet to a compound curve having a~radius of 1317.00 feet, a delta of 03°00'09"; thence along said curve an arc length of 69.02 feet; thence North OS°55'52"West, 167.36 feet to anon-tangent curve to the right having a radial which bears North 88°12'38" West, a radius of 1329.00 feet, a delta of 04°31'54"; thence northeasterly along said curve an arc length of l OS.I 1 feet; thence North 06°19'16"East, 464.02 feet; thence North 03°35'25"East, 95.16 feet to a non-tangent curve to the left having a radial which bears South 88°38'03" East, a radius of 1213.00 feet, a delta of 11 °24'55"; thence northwesterly along said curve an arc length of 241.67 feet to anon-tangent curve to the left having a radial which bears North 79°57'02" West having a radius of 1065.00 feet, a delta of 00°52'34"; thence along said curve an arc length of 16.28 feet to a reverse curve having a radius of 212.00 feet, a delta of 09°15'24"; thence along said curve an arc distance of 34.25 feet to a reverse curve having a radius of 238.00 feet, a delta of 03°44'38' ;thence along said curve an arc distance of 15.55 feet; thence South 84°35'14"West, 1.00 feet to anon-tangent curve to the left having a radial which bears North 84°35'14" East, a radius of 237.00 feet, a delta of O1 ° 10'03";.thence northwesterly along said curve an arc length of 4.83 feet; thence Created on i 0/19/2010 3:21 PM - - - G:\AdminUobs-08\081001 \SURVEY\GHAD.doc Exhibit A to the Petition ~ ~ 98388140' City'of'Dublin .County'of Alameda Exhibit. "A" - Legal Description. i' North 06°19'16"East; 25:.$.07 feet to a non,tangent curve`to he rig2it.tiavng a radial- which bears. South 83°40'20" East, having a radius of 800;55 feet, a delta:of 03°30'ST' thence along said' curve an.arc'length of.49.12 feet to anon-tangent.curue'to theeleft; ,having a radial which bears South-38°5'1'59"-East,~aradius of 466':00 -feet; a delta of 28°46'15";; thence;nortfieasterlyatong-saadtcurve an arc length of 234.00~feet; thence North 22°21'46"East; 687.66 feet to the northern lineof. said parcel; thence aiorig'sad northern line; South:89°5;1'52"East, 24'70.35.feet to the.Point of Beginning:: ' ,~,,,aND. ~V9 " . ~ ~ arles Se lrnan L:S: 5186 GP 9y pp- Date ~ ~ Exp, 06.3-11. `Q, - ,,cSj, ~~4F GAS-~44- Created on 10/19/2010 3:21 PM G:~AdminUobs-:08\081 OO 1 ~SURV EYIGHADddc rRACr 7B53 ~ rRACr 8084 y \ _ - - _ -S~Cr1DN 34 SE'CrIDN 35 . J ~ S893152'E 247Q35' rRACr r14z Q~~ P•0•e- o 0~~~ ?ry~~ ~ ~ ~ h N383159 R R=466.00 N8375'11 ~ R N8017923'W R ~ C14 R=800.55 ~ ~ C11 N8340'20'N R L7(R w ' C10 n t ~ S7937'02'W R N88'19'S2'E R ~ SEE DETAIL B' Y a Fo ~ ~ rn ~v N88:38'03'N R ~ N v GRAD PARCEI, 1 L ~ (185.9f ACRES) ~ 58872'38'£ Ri N8433'19 R ~ ~ N8133'f0 E R ~ ~ N757620~' R i C5 ° / ~ C4 DETAIL 'B' l~ ~~SEE DETAIL .if' NOT TO SCALE SDUIH UNE ~ S£CAON 35 S62:3108 R AI8830'52'W 2597.08' CHEN 1998265414 UNE TABLE CURVE TABLE ~ R UNE BEARING DISTANCE CURVE RADIUS DATA LENGTH 57ti39~10 Lf N3732'45'W 324.96' Cf 399.94' 1073'53' 72.58' ~(R) ~ [2 N71;3656~ 1.00' C2 1288.00' 00176'47' 2.54' L3 N037125"W ffi 40' C3 1287.00' 00'02'14' 0.84' N L4 N0535'S2'W 167.36' C4 87.00' 143925' 2276' R L5 N0679'16'E 464.02' C5 23&00' 1 J'12'15' 46.54' µr-30'p9~ L6 N0335'25"E 95.16' C6 1275.00' 06171650' 136.05' L7 584:35'l4'W .1.00' C7 1317.00' 03170 09' 69.02' L8 N0679'16'1~ 25807' CB 1329.00' 043154' 105.11' C9 1213.00' 117455' 24f.67' . Cf0 1065.00' 0032'34' 16.28' •A+• C11 212.00' 0975'24' 34.25' NOT 10 SCALE C12 238.00' 03'44 ;38' 15.55' C13 237.00' 0170'03' 4.83' C14 800.55' 033037' 49.12' C15 466.00' 2846'15' 234.00' -N- LEGEND o 50o iooo P.O.B. POINT OF BEGINNING ( rx P>~r ) 1 inch = 500 ft. EXHIBIT B GVJob2008~061001\RAPPDJG~PWTS\F9iRD.tl•g 1O/2O/2010 IOM®14 nM PDT PLAT TO ACCOMPANY LEGAL DESCRIPTION 1 - - - - ~'OR RUGGERI-JENS] ENGINEERS • PLANNERS Exhibit T CsHAD 4690 CHABOT DRIVE, 91ITE 200 P, L.j7 PHONE: (925) 227-9100 FAX: scuF: oA,>=: to the Petition - CITY OP DiTBLiN, ALAItEDA COUNTY, CALII+0RN1A 1'=500' 10-20-10 • • ~ FALCON VILLAGE ~ GEOLOGIC HAZARD ~ ABATEMENT DISTRICT (GHAD) PLAN OF CONTROL JORDON RANCH DEVELOPMENT ANNEXATION • • • • • Submitted to • Mission Valley Properties • Pleasanton, California ~ Prepared by • ENGEO Incorporated • Project No. 7828.000.000 February 11, 2011 • DRAFT D • • • Copyright ©2011 Ey ENGEO Incorporated. • This Document hJlay Idot Ee Reproduced In ~JVhole Or In Part By ,4ny fJteans i/JhatsDever, ~ L'Gt LXCelienCe~ • Ivor May it Ee G~ucted Or Excerpted Without The Express Written Consent Ot ENGEO • Incorporated • Exb i b C ~ ~'~e Fie ~ o • • GEOTEC I A ENVIRONMENTAL r WATER RESOURCES ~ I N C O R P O R A T E D CONSTRUCTION SERVICES Project No. 7828.000.000 February 11, 2011 Mr. Ravi Nandwana Mission Valley Properties • 5000 Hopyard Road, Suite 170 Pleasanton, CA 94588 Subject: Jordan Ranch, Tract 8024 • Dublin, California PLAN OF CONTROL • Dear Mr. Nandwana: Attached is the proposed Plan of Control to support annexation of the Jordan Ranch development into the Fallon Village Geologic Hazard Abatement District (GRAD). The proposed Plan of • Control is intended to reflect the annexation of the Jordan Ranch project (Tract 8024) into the • Fallon Village GHAD. This annexation satisfies portions of Condition of Approval Number 107 related to GRAD formation. If you have any questions or would like any additional information, please do not hesitate to contact us. Sincerely, • ENGEOIncorporated Prepared by: Eric Harrell, CEG Uri Eliahu, GE eh/ue/jf:poc cc: 1 - Mr. Mark Lander, City of Dublin • 2010 Crow Canyon Place, Suite 250 • San Ramon, CA 94583 • (925) 866-9000 • Fax (888) 279-2698 www.engeo.com • . • l ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 . ~ TABLE OF CONTENTS ~ Letter of Transmittal . ~ 1.0 INTRODUCTION ...........................................................................................1 1.1 PROPERTY IDENTIFICATION, OWNERSHIP AND MAINTENANCE • RESPONSIBILITIES .........................:.......................................................................1 ~ 2.0 JORDAN RANCH PLAN OF CONTROL ...................................................1 . 2.1 GEOLOGIC HAZARDS ............................................................................................1 • 2.1.1 Slope Instability -Jordan Ranch .........................................................................1 • 2.1.2 Seismically Induced Ground Shaking .................................................................2 2.1.3 Expansive Soils ...................................................................................................2 2.2 SLOPE STABILITY CONSIDERATIONS DURING MASS GRADING ...........2 2.3 GHAD-MAINTAINED IMPROVEMENTS AND OPEN SPACE AREAS .........3 • 2.3.1 General Landslide Mitigation .............................................................................4 2.4 BIOTECHNICAL RECOMMENDATIONS FOR PREVENTION AND MITIGATION OF EXISTING OR POTENTIAL EROSION HAZARDS..........5 2.5 CRITERIA FOR GHAD RESPONSIBILITY .........................................................5 • 2.5.1 Isolated or Remote Slope Instability ...................................................................5 • 2.5.2 Single Property ....................................................................................................5 2.5.3 Geologic Hazards Resulting From Negligence of Property Owner ....................6 . 2.5.4 Property Not Accepted ........................................................................................6 2.5.5 Geologic Hazard Which Requires Expenditure in Amount Exceeding the • Value of the Threatened or Damaged Improvement ...........................................6 • 2.5.6 GHAD Funding or Reimbursement for Damaged or Destroyed Structures or Site Improvements ..........................................................................................6 2.5.7 No Reimbursement of Expenses Incurred by Property Owners .........................7 • 2.6 PRIORITY FOR DISTRICT-FUNDED REPAIRS ................................................7 2.7 MAINTENANCE AND MONITORING SCHEDULE ..........................................7 ~ 3.0 GLOSSARY ......................................................................................................8 4.0 RIGHT OF-ENTRY ........................................................................................9 . LIST OF REFERENCES FIGURE 1-Open Space Ownership and Maintenance Responsibilities FIGURE 2 -Geologic Map FIGURES 3 through 8 -Phase 1 Geotechnical Corrective Grading Plan • EXHIBIT A -Legal Description for Tract 8024 • EXHIBIT B -Plat to Accompany Legal Description for Tract 8024, Boundary Exhibit EXHIBIT C -Jordan Ranch Annexation, Background Authority Proposed Development • ~~GEO • INCORPORATE D . • • 1~~ ~q • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • EXHIBIT D -Jordan Ranch, Geology • Regional Geology and Geologic Maps Site Geology • Geologic Units Artificial Fill • Colluvium Bedrock • Groundwater Seismic Sources • EXHIBIT E -Jordan Ranch, Funding and Acceptance Funding and Acceptance of Responsibility by the District 1. Activation of Assessment • 2. Initial Developer Contributions • 3. Ownership of the Open Space 4. Responsibilities for GHAD Activities • 5. Process for Transferring Responsibility for GHAD Activities • EXHIBIT F -Jordan Ranch, Disclosure and Right-of--Entry • • • • • • • • • • • • • • • • • • • • • • • L~~GEO • INCORPORATE D • • ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • • 1.0 INTRODUCTION • Under the Conditions of Approval for the Jordan Ranch development (Tract 8024), the City of Dublin has required that the Jordan Ranch development be annexed into the Fallon Village • GRAD prior to filing of the first final map for the project. To satisfy this requirement, the developer of the Jordan Ranch Development has petitioned the Board of Directors of the Fallon • Village GRAD to annex the Jordan Ranch development into the existing Fallon Village GHAD ("GHAD" or "District"). • L1 PROPERTY IDENTIFICATION, OWNERSHIP AND MAINTENANCE RESPONSIBILITIES • A written description of the properties to be annexed into the existing Fallon Village GHAD is • provided in Exhibit A and shown graphically on Exhibit B. The GHAD annexation area includes Assessor's Parcel Numbers 985-27-7-4 and 985-27-6-4. Ownership and maintenance responsibilities for the individual parcels within the annexation area (Tract 8024) are shown on • Figure 1. • 2.0 JORDAN RANCH PLAN OF CONTROL 2.1 GEOLOGIC HAZARDS • • Geologic hazards identified for the site in the Berlogar Geotechnical Consultants (BGC) • Geotechnical Investigation report (Reference 1) dated July 13, 2009, include the following items. • • Slope instability • • Seismically induced ground shaking • • Expansive soils • These geologic hazards are not expected to be eliminated entirely by site grading. Slope • instability or potential slope instability is not unique to this project, but is of importance for • hillside projects throughout the San Francisco Bay Area, such as Fallon Village. Future stability • depends on various factors, including any introduction of natural or artificial groundwater, future grading and earthquake ground shaking. • 2.1.1 Slope Instability -Jordan Ranch While no landslides. were mapped on the site, areas of slope instability or landsliding will likely be identified during the life of the development. While we anticipate that most of the landsliding that may occur would involve the movement of shallow materials, the possibility of deeper • future landsliding exists. • -1- • ,GEO • I N C O R P O R A T E D • • • ~ 1 • Mission Valley Properties 7828.000.000 • Jordan Ranch -Tract 8024 February 11, 2011 • A landslide is defined as a mass of rock, soil and other debris that has been displaced downslope • by sliding, flowing or falling. Landslides include cohesive block glides and disrupted slumps that • have formed by displacement along a planar slip surface or rotation (displacement along a curved • slip surface). Undercutting and erosion of hillside slopes can trigger slope failures. Slope failures are also triggered by increased pore water pressure due to the infiltration of • rainwater. The resulting decrease of shear resistance (internal resistance to deformation by shearing) can cause the slope to move. The level of the groundwater table varies with the amount • of rainfall for the area. If rainfall is higher than average during the winter season, the water table may be higher than average on a hillslope and groundwater pressures may become high. Under • these conditions, hillside movement can be activated. • • Areas of thickened soil cover on the hillslopes are known as colluvium (Qc). Colluvial deposits • are typically the result of soil creep and may be in a weak, unconsolidated state, making them susceptible to landsliding if undercut. Colluvium is up to about 12 feet in thickness. Colluvial • deposits located within open-space areas are natural landforms that do not require mitigation, • except where they affect man-made improvements. Potential mitigation and repair measures for • District areas near improvements are discussed in Section 3. • 2.1.2 Seismically Induced Ground Shaking • As identified in the geotechnical report, an earthquake of moderate to high magnitude generated • within the San Francisco Bay Region could cause considerable ground shaking at the site, similar to that which has occurred in the past. Seismic slope stability has been considered in the • geotechnical reports completed for the site; however, seismically generated slope failures could • occur outside the grading limits within the Jordan Ranch Development. • 2.1.3 Expansive Soils • Near-surface soils, in addition to claystone and siltstone at the site, could exhibit a very high • potential for expansion. These potentially expansive soils could impact the planned site development. Expansive soils shrink and swell as a result of moisture change. This can cause • heaving and cracking of slabs-on-grade, pavements and structures founded on shallow • foundations. The potential for expansive soils has been identified in previous reports for the • property. Shrink and swell of expansive soils on slopes is a portion of the mechanism of creep • movement, which can result in shallow slope instability. • 2.2 SLOPE STABILITY CONSIDERATIONS DURING MASS GRADING • As recommended in the Geotechnical Investigation and Geotechnical Recommendations reports • completed by BGC (Reference 1) and ENGEO dated August 17, 2010 (Reference 2) for the • Jordan Ranch development, existing non-documented artificial fills within the graded area will • be removed prior to engineered fill placement. In addition, unsuitable materials, which could • include colluvium and other unsuitable material will be overexcavated to firm undisturbed -2- • ~GEO • I N C O R P O R A T E D • • 1~~ ~ ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • materials below the unsuitable material as determined by the project Geotechnical Engineer or Engineering Geologist (ENGEO) at the time of grading. Subdrains will be installed to collect subsurface waters. The configuration of the subdrainage system will be tailored to the subsurface conditions at the time of grading. The planned location and elevation of subdrains and outlets are • shown on the Geotechnical Corrective Grading Plan (Figures 2 through 5). Each subexcavation area will be reconstructed to final grade by keying and benching below the landslide plane with compacted, drained engineered fill. • The cuts will be viewed by a geologist during grading to provide mitigation schemes for unsuspected slope conditions, which could decrease the slope stability. Such conditions include unfavorable bedrock attitudes and seepage conditions. Grading reports shall be made available to the GRAD for its use following completion of the project development. • 2.3 GHAD-MAINTAINED IMPROVEMENTS AND OPEN SPACE AREAS The District will have authority and responsibility to manage erosion and other geologic hazards within the boundary shown in Exhibit B subject to the exclusions listed in Section 2.5 -Criteria • for GHAD Responsibility. The GHAD shall be responsible for monitoring and maintenance of the following site improvements located within the GHAD-owned parcels that include Parcels A, K, S, and T, as shown on the Open Space Ownership and Maintenance Responsibilities Plan (Figure 1). • • Slopes • Debris benches • Maintenance roads • Developed trails including footbridge • Fencing • • Concrete-lined drainage ditches • Storm drain system improvements • Retaining walls • Subdrains and subdrain outlets • Water quality basin The central open space slopes within Parcels A and S are bisected by a drainage channel. Improvements planned within the limits of Parcel A include a water quality basin and wetlands. A developed trail is planned around the perimeter of Parcel S. In addition, a connector trail will • bisect Parcel S and include a footbridge across the drainage channel. As shown on Figure 1, the • central open space area will have two activity zones. In general, the Active Zone includes areas around the perimeter of each parcel that will allow maintenance of the trail, water quality basin and vegetation management in the Fire Buffer Zone. The Intermittent Activity Zone includes the core area of Parcels A and S where the GHAD will not have scheduled maintenance activities, • but will mitigate landslides, erosion, or the threat thereof, as they occur. While activity zones are • shown on Figure 1, this does not imply that GHAD Parcels A, S, or other GHAD-owned parcels - 3 - • ~~1GE0 • INCORPORATE O • • • I~~ • Mission Valley Properties 7828.000.000 • Jordan Ranch -Tract 8024 February 11, 2011 • • within the Jordan Ranch are subject to interim or ongoing regulatory monitoring or remediation • activities. The activity zones are provided to show where the GHAD anticipates different levels • of activity within these parcels. As planned, the GHAD-owned parcels within the development • would not be included within a conservation easement. As with the remainder of the • GHAD-maintained areas, the GHAD will be subject to State and Federal permit requirements • within Parcels A and S during mitigation activities. • The GHAD intends to mitigate, prevent, abate or repair landslide or erosion hazards that could • directly affect property within the GHAD boundary, as necessary to implement this Plan of • Control. The GHAD will also assume open-space management responsibilities that are required for the Jordan Ranch project. These responsibilities will include vegetation management, erosion • control, vegetation removal (fire suppression), and selected other maintenance associated with • open space. • 2.3.1 General Landslide Mitigation • • The techniques the District may employ to prevent, mitigate or abate landsliding or adverse • erosion damage might include, but are not necessarily limited to: • • Removal of the unstable earth mass. • • • Stabilization (either partial or total) of the landslide by removal and replacement with • compacted drained fill. • • Construction of structures to retain or divert landslide material or sediment. • • Construction oferosion-control devices such as gabions, rip rap, geotextiles or lined ditches. • • Placement of drained engineered buttress fill. • • Placement of subsurface drainage devices (e.g., underdrains, or horizontal drains). • • Slope correction (e.g., gradient change, biotechnical stabilization, and slope trimming or • contouring). • • Construction of additional surface ditches and/or detention basins, silt fences, sediment traps, • or backfill or erosion channels. • Potential landslide and erosion hazards can often best be mitigated by controlling soil saturation • and water runoff and by maintaining the surface and subsurface drainage system. Maintenance • shall be provided for lined surface drainage ditches and drainage terraces. • • • -4- • INCORPORATE D • • • l~~ ~I ~ • Mission Valley Properties 7828.000.000 • Jordan Ranch -Tract 8024 February 11, 2011 • • 2.4 BIOTECHNICAL RECOMMENDATIONS FOR PREVENTION AND • MITIGATION OF EXISTING OR POTENTIAL EROSION HAZARDS • • Fill slopes within the boundaries of the District are expected to be erodible as will cut slopes in • bedrock; therefore, the maintenance of vegetative cover is especially important. Vegetation provides a protection on soil and exposed rock. It absorbs the impact of raindrops, reduces the • velocity of runoff and retards erosion. • In many instances, adequate erosion protection for slopes can be accomplished with carefully • selected and placed biological elements (plants) without the use of structures (e.g., brush layering • and willow waddling). • • In other areas, biotechnical slope protection may involve the use of mechanical elements or • structures in combination with biological elements to provide erosion control and help prevent small-scale slope failures. Locally, walls, welded-wire walls, gabion walls, rock walls, riprap and • reinforced earth walls used in combination with carefully selected and planted vegetation can provide high-quality slope protection. The vegetation may be planted on the slope above a low • retaining structure or toe wall, or the interstices of the structure can be planted. • 2.5 CRITERIA FOR GRAD RESPONSIBILITY • • To establish an appropriate GHAD assessment level for the Jordan Ranch portion of the Fallon • Village GHAD, it is important to define clearly the limits of the GHAD's responsibilities. The GHAD will accept responsibility for property as described in Exhibit A. However, the intent of • this Plan of Control is not to extend the GHAD's responsibilities to every potential situation of slope instability; as such, the following are exclusions from GHAD responsibility. • 2.5.1 Isolated or Remote Slope Instability • The GHAD shall not have responsibility to monitor, abate, mitigate or control slope instability • that does not involve damage to, or pose a significant threat to damage, site improvements or • flood control capacity. As used herein, the term "site improvements" means buildings, roads, sidewalks, utilities, retaining walls, improved trails, swimming pools, geologic stabilization • features and drainage features or similar improvements. • 2.5.2 Single Property • • The GHAD will not prevent, mitigate, abate or control geologic hazards which are limited in area to a single residential parcel of property unless the geologic hazard has damaged, or poses a • significant threat of damage to site improvements located on other property within the GHAD boundaries. • • • • -5- ~~s~ • r ~~o • INCORPORATE D • • I ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • 2.5.3 Geologic Hazards Resulting From Negligence of Property Owner The GHAD may, in the general manager's sole discretion, decline to prevent, mitigate, abate or control geologic hazards which occur or result from any negligence of the homeowner andlor the • homeowner's contractors, agents or employees in developing, investigating, grading, constructing, maintaining or performing or not performing any post-development work on the subject property. • 2.5.4 Property Not Accepted The GHAD shall not have responsibility to repair damage which is situated on a parcel of real property, which the GHAD has not accepted in accordance with Exhibit E. The GHAD, • however, may monitor, abate, mitigate or control slope instability on a parcel of real property • which the GHAD has not accepted in accordance with Exhibit E, provided that the GHAD responsibility on such parcel shall be limited to the extent necessary to address damage or a significant threat to damage site improvements on aGHAD-accepted parcel. • 2.5.5 Geologic Hazard Which Requires Expenditure in Amount Exceeding the Value of the Threatened or Damaged Improvement The GHAD may elect not to prevent, mitigate, abate or control a geologic hazard where, in the • general manager's sole discretion, the anticipated expenditure required to be funded by the • GHAD to prevent, mitigate, abate or control the geologic hazard will exceed the value of the structure(s) and site improvement(s) threatened with damage or loss. 2.5.6 GHAD Funding or Reimbursement for Damaged or Destroyed Structures or Site • Improvements ~ In the event a residence or any other private structure, site improvement or landscape feature is damaged or destroyed as a result of a geologic hazard, the District may fund or reimburse the • property owner for the expenses necessary to repair or replace the damaged or destroyed • structure, site improvement or landscaping. Unless otherwise authorized by the Board of Directors, the total dollar amount of the District funding or reimbursement paid to all property owners whose property is damaged by a geologic hazard may not exceed ten percent (10%) of the total costs incurred by the District in actually mitigating, abating or controlling the geologic • hazard that causes the damages. In the event the geologic hazard damages or destroys a structure, site improvement or landscaping which violates any provisions of the City Building Code or City Code at the time of its installation or improvement, the District may decline to provide any funding, or reimbursement to the property owner for repair or replacement of the damaged • structure, improvement or landscaping. • 1 For example, if a landslide causes $10,000 in structural damage to each one of four neighboring homes for a total of $40,000 in structural damage and it costs the District $100,000 to design and install a new retaining wall to abate the slide, the District may only reimburse each property owner $2,500 of their $10,000 in structural damage. ~ -s- • ~-,'G~~ • INCORPORATE D 18 • ~ N~ • Mission Valley Properties 7$28.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • 2.5.7 No Reimbursement of Expenses Incurred by Property Owners The GRAD will not be obligated to reimburse a property owner for expenses incurred for the prevention, mitigation, abatement, or control of a geologic hazard absent a written agreement • between the property owner and the GHAD to that effect, which agreement has been executed prior to the property owner incurring said expenses, and following an investigation conducted by the GHAD. • 2.6 PRIORITY FOR DISTRICT-FUNDED REPAIRS Emergency response and scheduled repair expenditures are to be prioritized by the General Manager, utilizing its discretion, based upon available funds, a prudent reserve and the • approved operating budget. Should available funds not be sufficient to undertake all of the identified remedial and preventive stabilization measures, the expenditures shall be prioritized as follows in descending order of • priority: A. The prevention, mitigation, abatement or control of geologic hazards that have either damaged or pose a significant threat of damage to residences, critical underground utilities or paved streets. B. The prevention, mitigation, abatement or control of geologic hazards that have either damaged or pose a significant threat of damage to private recreation facilities (e.g., pools, spas, etc.). • C. The prevention, mitigation, abatement or control of geologic hazards that have either ~ damaged or pose a significant threat of damage limited to loss of landscaping or other similar non-essential amenities. • D. The prevention, mitigation, abatement or control of geologic hazards existing entirely on open-space property and which have neither damaged nor pose a significant threat of damage to any site improvements. • 2.7 MAINTENANCE AND MONITORING SCHEDULE ~ Geologic features and District-maintained facilities should be inspected on a regular basis. Budget permitting, inspections should generally be scheduled to occur two times per year in normal years and three or more times per year in years of heavy rainfall. The inspections should • be scheduled to take place in the fall, prior to the first significant rainfall; mid-winter as necessary during heavy rainfall years; and in spring at the end of the rainy season. It is anticipated that the monitoring events for the Jordan Ranch development and the Fallon Village development within the Fallon Village GHAD would be completed on the same schedule. -7- • INCORPORATE D • • ~9 • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • • A District Engineer and/or Geologist should inspect the lined surface of concrete-lined drainage ditches within the District boundaries on a regular schedule. Repairs and maintenance should be performed as needed. Excess silt or sediment in ditches should be removed and cracked or broken ditches should be patched or repaired as required before the • beginning of the next rainy season. • Several types of debris catchment structures are planned. Repairs and maintenance should be performed on a regular schedule. Excess debris should be removed to allow the structures to • maintain adequate catchment area. • Subsurface drain outlets and horizontal drain outlets, if any, should be inspected on a regular schedule. Water flowing from these outlets should be measured and recorded during each inspection. Any suspicious interruption in flow should signal a need to unplug or clean by • flushing the affected drain. • If installed, piezometers used to measure groundwater levels, or other instruments such as inclinometers and tiltmeters, should be monitored on a regular schedule. • • Settlement-monitoring devices, if any, should be monitored on a regular schedule. In the event of anomalous readings or excessive settlement, the monitoring frequency should be increased. • Inlets, outfalls or trash racks, if used, must be kept free of debris, and spillways must be • maintained. Attention should be given to plantings or other obstructions, which may interfere with access by power equipment. ~ • The water-quality basin facilities should be monitored and maintained in accordance with the • Operations and Maintenance Manual for Water Quality Basin at Jordan Ranch. The District should review its inspection schedule annually and assess the effectiveness of its preventive maintenance program on a regular basis. District staff should prepare an annual report to the Board of Directors with recommendations for maintenance and/or repair projects. • Consultants, as necessary, may be retained to undertake the needed studies. The District Engineer and/or Engineering Geologist retained by the District shall prepare an annual inspection report for presentation to the District Board of Directors. ~ 3.0 GLOSSARY Engineer's Report -The document that establishes the individual property owners' GHAD assessment based on the projected expenses (budget) of the GHAD. • -8- ~~~GEO • I N C O R P O R A T E D • n i ~vl Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • Geological Hazard Abatement District (GHAD) Manager - An entity employing a licensed Geotechnical Engineer who will oversee the operations of the GHAD including preparation of GHAD budgets. The GHAD Manager is hired by and reports to the GHAD Board of Directors. ~ 4.0 RIGHT OF-ENTRY District officers, employees, consultants, contractors, agents, and representatives shall have the right to enter upon all lands within the District boundary, as shown on Exhibit B, for the purpose of performing the activities described in the Jordan Ranch GHAD Plan of Control. Should the • District need to access parcels owned by the Homeowner's Association or private residential lots • to fulfill its duties under the Plan of Control, the District shall provide the affected landowner and/or resident with 72 hours advanced notice unless, in the reasonable judgment of the GHAD Manager, an emergency situation exists which makes immediate access necessary to protect the • public health and safety, in which case no advanced notice is required, but the District shall • inform the landowner and/or resident as soon as reasonably possible. The owner or owners of property within the Jordan Ranch development shall record a Declaration of Restrictive Covenants, Right of Entry and Disclosures Regarding Geologic • Hazard Abatement District ("Declaration") after recordation of the Parcel Map, in the form attached as Appendix F. The Declaration creates covenants that run with the land and will be binding upon all future owners of property within the Jordan Ranch development, their successors and assigns. -9- ~ . INCORPORATE D 1 • a ~ • Mission Valley Properties 7828.000.00 Jordan Ranch -Tract 8024 February 11, 2011 ~ REFERENCES Reference 1: Berlogar Geotechnical Consultants, Geotechnical Investigation, Jordan Ranch, Dublin California, Job Number 3113.000, July 13, 2009. • Reference 2: ENGEO; Geotechnical Recommendations Report, Jordan Ranch, Tract 8024, Dublin, California; Project Number 2978.000.000, August 17, 2010. 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SW-S - PROPOSED SOLB) SUBDRAEN DISCHARGE PIPE a - a'~' a oxewtu 1~B1R • ~ N °OY'~~.,+" ; S[fB 3 COVERSHFET 0 PROPOSEDSUBDRAINRISER e • q t CUT LOT (OVEREXCAVATE 3 FEET BELOW PAD GRADE AND REPLACE WITH T ~,,,,wa. d ~ 4 CORRECTIVE GRADING PLAN ENGIIAEEREDFBL p B ~ • v o g ~ S CORRECTIYEGRADINGPLAN Q"' m T CUTIFR.LTRANSITIONLOT(OVEREXCAVATEANDREWORKUPPER3FEET 6 CORRECTIVE GRADING PLAN BELOW PAD GRADE AS ENGINEERED FEL) mow=- _ ~ 7 CORRECTIVEGRADMGPLAN ses LOTSUBEXCAVATIONWITHEIEVATION i ~Pf° umn~,, APPROXIMATE LOCATION OF POSSIBLE SLOPEREBURDAREATOhBTIGATE • e ADVERSE BEDDINQ CUT SLOPE TO BE MAPPED BY PROJECT GEOLOGIST • i ~ - R.j APPROXIMATE LOCATION OF PROPOSED COLLUVIUM REMOVAL d N YAtIII A v •t w b> 3 ~ ro ~ a..,.. 3 ®APPROXIMATE LOCATION OF PROPOSED SLOPE REBUILD AREA, REBUILD w°° ~;a° ENG OLETTERDATEDpg/ORJGDEOGRIDREINFORCEMENTASDESCRIBEDIN • EASE NAP SWRCf: M$ S1RCClS AND TRIP$ ~ pppgp7pMpTELpCA7TONOFPROPOSEDSETTIEMENT'MARKER • VICINITY MAP NO SCALE APPROXIMATECUTIFILLTRANSIT[ONLINE • M~~ APPROXIMATE LOCATION OF BORING (BGC, 2IX19) • ~ ~ ~ APPROXIMATE LOCATION OF BORING (NORTHGATE, 200SI I ~'''%a'~ ~ ~ ~ ~ \ F~ • ~ f ~ J~'~~I~~ ~ APPROXIMATE LOCATION OFBORAIG(BGC,ZDDq i~1(,'' • ~ ~ ~ ~ 11~ N~a~ APPROXIMATE LOCA770N OF BORING (BGC, 1999c) • SEE SH ET 4 ,SEE SHEET " ~y % Y.,4S7 I i~~. y~/l!/i' 1/ 1~~ ~ APPROXIMATELOCAT]ONOFTESTPIT(BGC,20091 l)I~I~. ~7 lll/ ~,rf i ~ A7PROXIMATE LOCATION OF TEST PIT (BCC, 1998) ~ i I~ • ~ ~ ~ ~ ' ~ APPROXIMATE LOCATION OP TEST PIT (BGC,1999a, b, of • ~ ~ l~ ~,a\ . ~ ~ ~ ~I~ ~~~F,~~ GEOLOGIC CONTACT, DASHED WHERE APPROXIMATE,QUER(EDWHERE • / ~ ~ ~ li ~ P UNCERTAIN (BGC, 2009) ~ l ~~~~i I~~~ ~1~ '111 q~{ nRTrFlcw.~LL(NOTExcmEFnEOI • ~ ~ ~ ~ S~ SHEET 6 ; ~ f, ~ . l,~'~~%'r ~ ~,i~~~< ~ Qii~ ARTIFICULFaL~ENCmEEREO~ • ~ ~ ~ ~ ~ _ ~ QC COLLUVNM, WHERE THICKERTHAN 5.1/L TO 6 FEET ~ ~ ~I 1 ~11~ _ - ~r-F-V / % ~ i~;, ~ QOi OLDERALLUVNM i • i ~ ~ r~. I ~ ~ ~ QTt TASSAlARA FORMATION ~ _ t i ~~'(l • ~ ~ ~ ,II~ la STRIIEEANDDeOFBBDDING ~ SEE SHED T 7 r • ~ ~ ~ ~ STRIKE ANDDtPOPOVERTURNEDBEDDING ~ ~ i • ~ ~ ~ ~ - .~•~i,A~ ~I -~A~./i I~,br ~ STRIKE ANDDtPOF101NTS 1 ~ ~~41~ ~ + ~.i I ~ I I i ~ ~ , ~ ~ _ ~ IlY ~ ~ VER77CAL BEDDING • j BASf NAP SOURCE: RJA 1i DEPTH OF GROUNDWATER IN FEET AT TIME OF SUBSURFACEE}(PIARATION • ~ SITE PLAN ANDSSHEET LAYOUT • ~ ii :URA ~ oLB COVER SHEET SHEET NUMBER • ~ ENGEO m 3 • ` JORDAN RANCH L -E7~ILiF1iDLlINILY- (910lE69fW OF 8 SHEETS 2 µE~y}~ lULY 2010 • ~ L I Io a DUBLIN, CALIFORNIA PROJECT NO. 828.000.000 REV. DATE DESCRIPBON BY ~""R`V0X''""'~ ~'"~"N090 "0°""'m°' as sxowN • I ~s~ ° ~ t / , ~ ~ , ~ Il ~i NDTE ~ ~ ~ ~/l 1/ ~ ~ ~ f ' . ' ~ ( ` - ~ ~ ~ ` ~ GRADING FOR RB-1 SLOPE REBUILD SHOULD PROCEED STARTING AT ~ / ~ I ~ t TOP OF SLOPE, AND EXCAVATION ACTIVITIES SHOULD PAUSE ONCE A ,s. t ~ C.; i ~V I / ~ / ~1~ 41 ~ MAXIMUM 12-FOOT VERTICAL BACKCUT HAS BEEN EXPOSED. THE ~ /~~rr~r ~ I~ r F ~ ~ ~ I ~ i~ ~ `v~~ Q' • GEOLOGIC CONDITIONS OF THIS SLOPE REBUILD BACKCUT WILL BE ~ ^a ? • .6 s ~ ~ ~ lT'~~, ' THEN MAPPED BY AN ENCEO CERTIFIED ENGINEERING GEOLOGIST 1 s~z~~~~ ~ >%r ~ _ ~ ~~1~~~~II,~ i t, ~ ~ / ~ PRIOR TO EITHER ADDITIONAL STAGED EXCAVATION OR COMPLETION OF ~ 6 ? ~ i ~ ~ i THE EXCAVATION. ~ s„s _ ~ ~~~l~r ~l'" ~ `C. ~ ~ lllh , ] -,11 ~ Ir~~ _ 11i sro~ JQ,E~ ~ ~'.~i ~~7 f)~ 1~~ - i~l'.~' I ~ ,i~~ 1 ss=.; `1 1, / ~p~ alK l~ ti ~ ~l 1 ~i ~ ~ ~ ~ I / 1 I l n ~f S ~ ) ~ js lh: ~r 1 0 ~ ~ ~ ~ ~ l ) ~ v~~~~~ ~ ,I °9/~:.~~ o; ~ GHA PAR EC ~ ~ ~ ~ ~:~~~~~~V s:uu~/~~~1~~~ 1 1 (g$pp~Ip~NpG~ 8~ 5 METER Q ~ - ~ d#~~~ ~ 119.ir 1 1 ~ ~ INIV. 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GATE DESCRIPTION BY u"~"1pV'~""`~'~"""~9CO~~q""~~ON nssHOwN O • { a • KEYWAY DIMENSIONS • O KEYWAY ND. nmrmnTM BASE wTrrrF1 ESTIMATED MAXTMUNI GEOGRID REINFORCED SLOPE RECOMIy1ENDATIONS INGINEEREp DILCONSISTING OP SB.TSTONE AND SANDSTONE • (FEED DEPTH (FEET) BEDROCK DERIVED MATERIAL OR USETINSAR 8X1200, 3-FOOT K•IA Ig 6 1. FOR 2:1 SLOPES USE IINSAR BX1200, 3-FOOT YERTICAL SPACING, GRID VERTICAL SPACING, GRID LINGTH l3 FEET MIMMUM, START LENGTH l3 FEET MINRRIM, START FlRSTGRID LAYER I FOOT BELOW TOE FIRST GRID LAYER I FOOT BELOW TOE ELEVATION K-lB IS IS ELEVATION. • K•lC l8 6 2. WHERETHB CEOGRID REINFORCID SLOPE EXTEND UP TO PAD GRADE OR • K-3 THRU K-Il Ig q STREET AREAS, THE UPPERMOST GEOGRB)LAYEA SHOULD BEPIACED AT LEA5T3FEET BEIAW FINISH PADGRADE AND SHOULD BE APPAOMMATELY7 2 MA% K-12 IS 10 FEET LONG AND THE UPPER SECOND LAYER OF GEOORHO SHOULD BE NO PROPOSED GRADE 1 • LONGER THAN I1 FEEf. (Nl MINDMUM WmTI{pE' K-12A 18 30 H BUTTRESS N'R TOTAL HEIGHT MEASURED . NOTE: SUBDRAIN PIPE SHALL BE MANUFACTUREDINACCORDANCE WITH ONE OF THE OF SLOPE HORIZONTALLY BENCHING (TYP) ALL KEYWAYS TO BE BUILT WITH ENGINEERED FILL CONSISTING FotLOwINGREQUmEMEINrs: OF SILTSTONE AND SANDSTONE BEDROCK DERIVED MATERIAL DESIGN DEPTHS LESS THAN 30 FEET . - PERFORATFdI ABS SOLID WAIL SDA 35 (ASTM 0.2151) PROMINENT BINCNPS WITH SUBDRAIN (TYP) ORIGINALGROUND -PERFORATED PVC SOLID WAIL SDR 35 (ASTM 63034) KEYWAY SPACED NO GREATER THAN 30' MEASl1RFD -PERFORATED PVC A-2000 (ASTM F949) VERTICALLY OR AS SHOWN ON PLANS - PERFORATED CORRUGATED HDPE DOUBLE-WALL (AASHTO M•2520R M•294, CALTRANS TYPE S, SDPS[ M[NNH1M SI'IFTNESSI • ENGINEERED F[LL DESIGN DEPTHS LESS THAN SOFEET KEYWAY SUBDRABN / WmTH OF KEYWAY~HI SOIL 2 (SI3 TYPICAL COMPOSITE DRAIN DECAILJ 3 (MAX - - iX •PERFORATED PYC SDR 23.5 SOLm WALL (ASTM D-3034) (IS'MINJ I~ _ V/ V •PERFORATED SCH.40 PVC SOLID WAIL (ASTM-17851 EPTH TO Bg DEI'FRAtm'EDAI THE y/C - PERFORATED ABS SDR 27,5 SOLm WALL (ASTM 0.2751) FIELD BY RFPRESETT'ATIVE OFENGEO. ' rr / -PERFORATED ABS DWYJSCH.40 (ASTM 62561 AND 0.1527) • ~!f/ ' -PERFORATED CORRUGATED HDPEDOUBLE-WALL (MSHTO M•2520R M-291, AT LEAST 4' MINIMUM INTO BEDROCK ~ CALTBANS TYPfi 5, 70 PSIMIN[MUM ST[FFIVFSS) ' ~~c//i\'\/-~EDROCK sTnoeE~TerEaTUN~ v~~L DFSIGNDEPrxsLFSSTww7oFEEr TYP[CALCUT-SNOPE~REBUILDDETAII. . ~ / -PFRFORA7ID ABS SOLID WAIL SDR 15.3 (ASTM 0.21511 / -PERFORATED SCH.80 PYC (ASTM 0.1785) • i • PERFORATED CORRUOATEDALUMANM {ASTM 8.745) 4-24,MIN--I SUBDRAP7 {TYP) t DEPTH AT TOETO BE A DECERMINIDINTHEFIELD BY N 1f1RS7.OPSFf~QRPAAIDALIRBN(/A(SLOPBEBIAD®V7; i THE GEOTECFINICALFNGDVEFlI Rl~ TCI~SLOPS4SBCRYONQP71lB78ST ® TYPICAL KEYWAY DETAIL ~•----2o MINIMUM • NO SCA[E TYPICALDEPTH VARIES FROM3 T04FEEf • S SCALE SUBDRAIN I• ~ TYPICAL OVEREXCAVATION FOR SWALE SUBDRAIN A PAD t ~ NO SCAIS DRAMAGE COeaosnEwmisoz c'~ s, • OHMAGE FABRICON BOIN9mE5, ~ - ~ V.~S'~ ` ~ HLlP NGCHA$SRAP311UNSNHfrnsmIX ' P.QUNALRNT MA7flUALPPEAPPROYPD 'Yi 1bA1PAA BY7FIBGCOIF.CIEVICALIXGA'EII~ ~i•:,1~:.~~: n,_P.I~7. =~y' PAD • ° ;,,.-y~•4~J 2.0'.7.0' ~1,~ ~rxry 11„ NA71Yf COINPAC7ED90d • I t A1' Y ~ Y \I fi~J..F ~ M .gi~• naR FB.TERA~DIOM` • ~ \ ~ " y ~ A 1 5'•3.0' t e _r~~,~ ~,~s\~j TIT- A \ I ~ - EXTFIVTOF R~AAP- ~ ~ • .--~1 .P ~ <t ~ `siJ '=c~=~' a°eEREONArFneHE ~ ~ 4 'ArxwRAlme~eeHt ~ . Ir M MIN. EN.OPH SPECdICA770NS.PU[FD '>S'~`. v~~~ nIM~ 2.5' 1 HA960PI(EYYWAY 14"~~ pFRPORpnONODOWN /LVY~~PA4~ ~ _.6 TOE DRAIN 'S~~' g KEYWAY SUBDRAIN - OPT70N ] ~ ^ t% ~ '1f7ril•; - • ; ,1' 4J_ t y \~0 6"DIAM1¢TFR SUBDRAIN 4EVaF3i(~D s a 7 ~ ~`?-l8 M1N ~ ^ ~~~pIY ` PiPE (EMSTING) FILTER MEDIUM ~ 11~ ~ ? Y u L~l..,. ~ ~ T y3' 1 ,A ~,~-:5, - it PLAN VIEW e urraNAnveA „,7 tw}'\~v~`I~'~ 04'~ C ~C a y .vt ~ ~ o ~ r N ASS 2 P RY dA F M/TEAIAI f1 ~ ~ tA~1 J~2- .q.- ,~~t~ ~ a4 F~ DTI' • ~ WIEAIIL SHALL CONSIST DF CIFAN, COARSE LNO AND GRAVEL DA Z'J/`~ kl ~ I O9A L~-~ v" ` SUBDRAPT NUMBER 2" FIIGH CHARACIFRSI GU9K0 S10NE, CCNfORYINC ID iXC FOLLOWING GRADING AEWR[NENR: ' ' _ 1'' 0 ~ f 4~ 6 ~v J~ / 4. ~ 8 3"DIAMETER GALVANIZED STEEL PIPE WITH SIEV[ 3RF X PA531NG 3EYF 4 ~ DRAMAGE COAff091EWF¢{fi0L P IGO 1gR MIN. ALDPE ~ v' `'s ~ ~ THREADED CAP PAIN'TEU WHITE WITH ~'F' I DILIMAGEFABRIC ON BOTH SIDES, • 7/A' 9a-too BAHH OP ICHYWAY 6' PERFORAT® PIPE J_ ~ 3' STENCHFD SUBDRAIN NUMBER I G/B• a-taG \ ca(ti'~~n'i"„ SVCHASSNAP3TRmsNerrnt2oDR \ v'>~ e0m'n[PxT MATw,v.PesAeexovm A/ IA is-a , >7 Ci 3 x le-u KEYWAY SUBDRAIN-OPTION2 .;U,~~.~~`° BYTIOSGEDIE(iMICALEVOMEFR / y %so oi8 '-`1~.C.<;',~~~(iC%~ AEFABAICATED 6"PLASTIC GRATE PIPE • ~ IsDO D-I `'i.l i~t.~ `~~,,yr'~ WITH ST3AINLESS STFFLS~ TO PEE e w<aAaXnvc A ' 5,,~„~,1a~ \ "Ike ~ • / a CLAN CRUSHED ROCK OA CReVL WRAPPED IN FILTER fABAIG NOTES: X-';~~€'~~ ~ I I / / ALL RRA fARRIC SHML Y[fl IXE FpIOWIXC NINMUY AY[RACE 1. AL( RlPT :dNiS SNUL BE C1UE0 ~S ` DIX19fEDRADd'D FOGHtlOWgCOFREFmPH S" \ • e ADLL VWIES UNLESS MHEAIASE SPECWIE9 BY EIIGCO. 2 A11 PFAlOR11f? PN( pACm HRNRIROAS GVWM . C,: 2q,,, "`L'~ t [oAfl'090E(ASRd-nSOIS0cHA3CVNIECH CONCAEIE MP7. 0.5' \ 89 SFR7PORM1(CIOOIOR PREIPPW)YED GPAB SfA[NOM IAmI 0-1X74) IRO IE3 S IX TACT (Y4WIW/W~ ON ALL iRFXfOWS AAD ?RAAY UX(S EQUIVALENT BY GEAIFADIICALQIGMEFA MIN. .I/~ uAS4 RFA uxrt AAU (Am O-A4sq_e a~/4d NATIVE NuI7BU.v. FILTER FABRIC lMTRAFI SOOX • A APPARdi OPENING S¢[ (ASIY o-mU ~7a-IM us. sm. 31EV[ 25A RB' RAP 9" THICK OR EQUIVALENT) 9 rlDw RATE (ASru o-AAWI) e° ~I/mm/n (MP7.1 Pu3nuAE smMmx (Arn o-Ae44) _w ~ ALTERNATE REYWAY SUBDRAIN • OPTION 3 SECTION A•A' s lra OEFlNf IEII iWx M ¢FI) ~ TYPICAL SUBDRAIN DETAIIS SUBDRAIN OUTFACE DETAILS • NO SCALE NO SCALE ZBOCRUNCANYONDIACE DESPIImAI:RPS SHEET NUMBER C 9AIE7S0 ORINN BI: DLB 1Y ~ ~ ~GED DETAILS WIPAA80N,CAI801d8A46BJ OtttMO a • ~ tv~~a~oo Ar: JORDAN RANCH aF s sHEETs 2 11.2010 UPDAIBH- &7 3 1M0 -Exp9GKE1cOBlIBnC9 FAXI10094267! IUI-Y2oto • 1 141410 TBPBRB8VI33?D QIa BB DUBLW, CALIFORNIA PROJECT N0. 7828.000.OOp REV. DATE DESCRIPTION BY '~"`~40N~~"J0~-'~"C0~30CM1~'~~ON ASSFpWN • • • • • • • • • • • • • • E • • X • • H • EXHIBIT A • I • Legal Description for Tract 8024 B • I • • T • • • • A • • • • • a _ • • _ _ w;~e - 1 - • _ h ~ • ~ • 98388140 • City of Dublin County of Alameda Exhibit "A" • Legal Description ~ Real property situate in the City of Dublin, County of Alameda, State of California, being a portion of the parcel described in the deed recorded in document 98388140 Official ~ Records of Alameda County, described as follows: Beginning at the northeastern corner of said parcel, said point being the Quarter Corner ~ of Sections 34 and 35, Township 2 South, Range 1 East, Mount Diablo Base and Meridian; thence along the eastern line of said first parcel, South O1 °29'39"West, 224.44 • feet; thence South 00°46'42"West, 2709.61 feet to the southeastern corner of said parcel; • thence leaving said eastern line and along the southern line of said parcel, North $8°30'52"West, 2597.08 feet to the southwestern corner of said parcel, said paint being on anon-tangent curve to the left having a radial which bears North 62°31'08" East, a radius of 399.94 feet, a delta of 10°23'53"; thence leaving said southern line, • northwesterly along the western line of said parcel and said curve an arc length of 72.58 feet; thence North 37°52'45"West, 324.96 feet to anon-tangent curve to the right, having a radial which bears South 71°30'09" West, having a radius of 1288.00 feet, a delta of i 00°06'47"; thence leaving said western line and northwesterly along said curve an arc • length of 2.54 feet; thence North 71 °36'56"East, 1.00 feet to anon-tangent curve to the right, having a radial which bears South 71°36'56" West, a radius of 1287.00 feet, a delta of 00°02'14"; thence northwesterly along said curve an arc length of 0.84 feet to a ~ compound curve having a radius of 87.00 feet, a delta of 14°59'25"; thence along said • curve an arc length of 22.76 feet; thence North 03°21'25"West, 16.40 feet to a curve to • the left having a radius of 238.00 feet, a delta of 11°12'15"; thence along said curve an arc length of 46.54 feet to a reverse curve having a radius of 1275.00 feet, a delta of 06°06'50"; thence along said curve an arc distance of 136A5 feet to a compound curve having a radius of 1317.00 feet, a delta of 03°00'09"; thence along said curve an arc • length of 69.02 feet; thence North OS°55'52"West, 167.36 feet to anon-tangent curve to the right having a radial which bears North 88°12'38" West, a radius of 1329.00 feet, a delta of 04°31'54"; thence northeasterly along said curve an arc length of 105.11 feet; thence North 06°19'16"East, 464.02 feet; thence North 03°35`25"East, 95.16 feet to a • non-tangent curve to the left having a radial which bears South 88°38'03" East, a radius of 1213.00 feet, a delta of 11°24'55' ;thence northwesterly along said curve an arc length ~ of 241.67 feet to anon-tangent curve to the left having a radial which bears North ~ 79°57'02" West having a radius of 1065.00 feet, a delta of 00°52'34"; thence along said • curve an arc length of 16.28 feet to a reverse curve having a radius of 212.00 feet, a delta • of 09°15'24' ;thence along said curve an arc distance of 34.25 feet to a reverse curve having a radius of 238.00 feet, a delta of 03°44'38"; thence along said curve an arc distance of 15.55 feet; thence South 84°35'14"West, 1.00 feet to anon-tangent curve to • the Left having a radial which bears North 84°35'14" East, a radius of 237.00 feet, a delta • of 01°10'03"; thence northwesterly along said curve an arc length of 4.83 feet; thence ~ Created on 10/19/2010 3:21 PM G:\AdminUobs-08\0810011SURVEY\GHAD.doc 98388140 City of Dublin County of Alameda Exhibit "A" Legal Description 3~~ ~q North 06° 19' 16"East, 258.07 feet to a non-tangent curve to the right having a radial which bears South 83°40'20" East, having a radius of 800.55 feet, a delta of 03°30'S7"; thence along said curve an arc length of 49.12 feet to a non-tangent curve to the left having a radial which bears South 38°51'S9" East, a radius of 466.00 feet, a delta of 28°46'15"; thence northeasterly along said curve an arc length of 234.00 feet; thence North 22°21'46"East, 687.66 feet to the northern line of said parcel; thence along said northern line, South 89°51'S2"East, 2470.35 feet to the Point of Beginning. arles Se lman L.S. 5186 /b-zo-2o~v Date %,p,ND gV~ ;~~ ~,~5 SF 9 ~c` zP~' 4'~y O U ~ No. 51a6 ~ ~p. os-sa~i ,Q OF Created on 10/19/2010 3:21 PM G:~AdminUobs-08\081001 \SURVEI'~GHAD.doc • 33 • ~ • p ge 1 Project: 081001 Wed October 20 10:48:01 2010 Parcel Map Check .Parcel name: GRAD PARCEL North: 445756.2541 East 612260.8222 .Line Course: S 01-29-39 W Length: 224.44 North: 44553]..8904 East 612254.9699 Line Course: S 00-46-42 W Length: 2709.61 North: 442822.5304 East 612218.1.624 Line Course: N 88-30-52 W Length: 2597.08 North: 442889.8595 East 609621.9553 .Curve Length: 72.58 Radius: 399.94 Delta: 10-23-53 Tangent: 36.39 Chord: 72.48 Course: N 32-40-49 W • COUrse In: S 62-31-08 W Course Out: N 52-07-15 E RP North: 442705.3047 East 609267.1433 End North: 442950.8672 East 609582.8189 •I,ine Course: N 37-52-45 W Length: 324.96 North: 443207.3605 East 609383.2941 Curve Length: 2.54 Radius: 1288.00 • Delta: 0-06-47 Tangent: 1.27 Chard: 2.54 Course: N 18-26-28 W Course Tn: N 71-30-09 E Course Out: S 71-36-56 W • RP North: 443615.9956 East 610604.7528 End North: 443209.7715 East 609382.4901 Line Course: N 71-36-56 E Length: 1.00 North: 443210.0869 East 609383.4391 .Curve Length: 0.84 Radius: 1287.00 Delta: 0-02-14 Tangent: 0.42 Chord: 0.84 Course: N 18-21-57 W Course In: N 71-36-56 E Course Out: S 71-39-10 W RP North: 443615.9956 East 610604.7528 • End North: 443210.8804 East 609383.1756 .Curve Length: 22.76 Radius: 87.00 Delta: 14-59-25 Tangent: 11.45 Chord: 22.70 Course: N 10-51-07 W • Course In: N 71-39-10 E Course Out: S 86-38-35 W RP North: 443238.2658 East 609465.7531 End North: 443233.1714 East 609378.9024 .Line Course: N 03-21-25 W Length: 16.40 North: 443249.5433 East 609377.9421 Curve Length: 46.54 Radius: 238.00 • Delta: 11-12-15 Tangent: 23.35 Chord: 46.47 Course: N 08-57-32 W Course In: S 86-38-35 W Course Out: N 75-26-20 E • RP North: 443235.6069 East 609140.3505 End North: 443295.4431 East 609370.7059 Curve Length: 136.05 Radius: 1275.00 • Delta: 6-06-50 Tangent: 68.09 Chord: 135.99 Course: N 11-30-15 w Course In: N 75-26-20 E Course Out: S 81-33-10 W RP North: 443615.9940 East : 610604.7530 • ~ • y 1 • page 2 Project: 081001 Wed October 20 10:48:01 2010 Parcel Map Check End North: 443428.6986 East 609343.5847 Curve Length: 69.02 Radius: 1317.00 Delta: 3-00-09 Tangent: 34.51 • Chord: 69.00 Course: N 06-56-46 W Course In: N 81-33-10 E Course Out: S 84-33-19 W RP North: 443622.1637 East 610646.2973 End North: 443497.1997 East 609335.2394 .Line Course: N 05-55-52 W Length: 167.36 North: 443663.6638 East 609317.9456 .Curve Length: 105.11 Radius: 1,329.00 Delta: 4-31-54 Tangent: 52.58 Chord: 105.08 Course: N 04-03-19 E • Course In: S 88-12-38 E Course Out: N 83-40-44 W RP North: 443622.1636 East 610646.2975 End North: 443768.4872 East 609325.3772 .Line Course: N 06-19-16 E Length: 464.02 North: 444229.6862 East 609376.4661 Line Course: N 03-35-25 E Length: 95.16 North: 444324.6594 East 609382.4251 .Curve Length: 241.67 Radius: 1213.00 Delta: 11-24-55 Tangent: 121.24 • Chord: 241.27 Course: N 04-20-30 W Course In: N 88-38-03 W Course Out: N 79-57-02 E RP North: 444353.5725 East 608169.7697 End North: 444565.2385 East 609364.1593 .Curve Length: 16.28 Radius: 1065.00 Delta: 0-52-34 Tangent: 8.14 • Chord: 16.28 Course: N 10-29-15 W Course In: S 79-57-02 W Course Out: N 79-04-28 E RP North: 444379.3982 East 608315.4990 End North: 444581.2513 East 609361.1951 .Curve Length: 34.25 Radius: 212.00 Delta: 9-15-24 Tangent: 17.16 Chord: 34.21 Course: N 06-17-50 W • Course Tn: N 79-04-28 E Course Out: S 88-19-52 W RP North: 444621.4324 East 609569.3525 End North: 444615.2582 East 609357.4424 .Curve Length: 15.55 Radius: 238.00 Delta: 3-44-38 Tangent: 7.78 Chord: 15.55 Course: N 03-32-27 W • Course In: S 88-19-52 W Course Out: N 84-35-14 E RP North: 444608.3268 East 609119.5434 End North: 444630.7774 East 609356.4821 .Line Course: S 84-35-14 W Length: 1.00 North: 444630.6831 East 609355.4866 Curve Length: 4.83 Radius: 237.00 • Delta: 1-ZO-03 Tangent: 2.41 Chard: 4.83 Course: N 05-59-47 W Course In: S 84-35-14 W Course Out: N 83-25-11 E • RP North: 444608.3268 East 6091.19.5434 End North: 444635.4$59 East 609354.9821 Line Course: N 06-19-16 E Length: 258.07 • North: 444891.9869 East 609383.3957 • ~ge 3 .Project: 081003. Wed October 20 10:48:01 2010 Parcel Map Check .Curve Length: 49.12 Radius: 800.55 Delta: 3-30-57 Tangent: 24.57 Chord: 49.12 Course: N 08-05-09 E • Course In: S 83-40-20 E Course Out: N 80-09-23 W RP North: 444803.7533 East 610179.0685 End North: 444940.6150 East 609390.3041 ,Curve Length: 234.00 Radius: 466.00 Delta: 28-46-15 Tangent: 119.52 Chord: 231.55 Course: N 36-44-54 E i Course 3:n: N 38-51-59 W Course Out: S 67-38-14 E RP North: 445303.4479 East 609097.8861 End North: 445126.1490 East 609528.8399 •I.,ine Course: N 22-21-46 E Length: 687.66 North: 445762.0925 East 609790.4736 Line Course: S $9-51-52 E Length: 2470.35 • North: 445756.2479 East 612260.8167 Perimeter: 11068.27 Area: 8,095,476 sq.ft. ].85.85 acres •Mapcheck Closure - {Uses listed courses, radii, and deltas) Error Closure: 0.0083 Course: S 41-38-31 W Error North: -0.00619 East -0.00550 .Precision 1: 1,333,524.10 i • • • • • • • • • • • • • o ~ 0 3 0 0 0 0 0 0 0 0 0 0 0 0 o ~ 0 c~ ~ 0 o IHI a ~ o ~ o ~ O Plat to Accompany Legal Description for Tract 8024, Boundary Exhibit 0 0 ~ Q-,~ ~ , ~ - _ ~ _ _ ~ ~ l ! 6 ~ _ 8 ~ rRACr 7a5s ~ rRACr easy h • SEL7/aN s4 SE'CrIDN 35 J `P~ ~ ~ ~ S893132'E 2470.35 • TRACT 7142 44 h, P.O.B. 4 ~ o ~ ~h ~ N38'5159 R • R=466 00 5' 1 ~ N80tI91 R • ~ C14 R=800.55 • ~ ~ C11 N8340'20'I R L7(R w ' C10 ~ • 57937'0 R N8879'52'E R ~ SEE DETAIL ~ ~ • ~o N ~ N N883803'K('R) U • ~ N ~ 2 GHAD PARCEL 1 ~ " (185.91 ACRES) 'ooh • ~ ~ y ~ 58872'38' R 1*i ' • N8433'19'~' R ~ ~ N8133'f0'~ R ~ • ~ N757620'E R ~ ~ • n o ~ C4 DETAIL ~4' ~-SEE DETAIL 'A' NOT TO SCALE SOUTH UNE • SECADN 35 c~ • S62"31 OB' R ~ N8830'S2`W 2597.08' cHEN • 199E285414 • UNE TABLE CURV£ TABLE ~ R UNE BEARING DISTANCE CURVE' RADIUS DATA LENGTH • ~ 5 •3s~~~ L1 N375245 W 324.98' C1 399.94' 1073'53" 72.58' L2 N7136 56~ 1.00' C2 128800' OOi76 47' 2.54' • ~(R) ~ L3 N037125'W f6 40' C3 12$7.00' 001D2'14' 0.84' N L4 N0555'S2'W 167.38' C4 87.00' 14915' 2276' • R L5 N0679'16'~ 464.02' C5 23800' 1172'15' 46.54' • µ7y3Q'O9 E L6 N0335'25'E 95.16' C6 1275.00' 0617650` 136.05' L7 S8435'14'N' f.00' C7 1317.00' 0317009' 69.02' • L8 N0679'18~ ?5807' CB 1329.00' 043154' 10x11' C9 1213.00' 117455' 241.67' • Cf0 1065.00' 0032'34" 16.28' • .A. C1 f 212.00' 0975'24' 34.25' NOT TO SCALE C72 23800' 03'44:38' 15.55' • ~ C13 237.00' 0170'03' 4.83' ! C14 800.55' 0330 57' 49. f2' C15 466.00' 28'46'15' 234.00' ~ -N- LEGEND o Soo looo • P.O.B. POINT OF BEGINNING ~ ~ c~~~ i inch = 500 R ~ EXHIBIT B G~008`~'°~`"""'~`FLATS\CdfADd•g D)/2D2DI0 10KB19 RM PDT PLAT TO ACCOMPANY LEGAL DESCRIPTION FOR RUGGERI-.IENSEN-AZAR ENGINEERS • PLANNERS • SYR VCY ORS • f590 CNABOT ORiVE, MITE 200 PLEASANTCN, CA 94588 JI Jl PHOnE: (825) 227-91 W FAX: (925) 227-9300 • SCALE: DATE: JOB N0: CITY OF DiIBLiN, ALAH€DA CODNTY, CALIFORNIA 1'=500' 10-20-10 081001 • ~ . . . . . . . . . . . . . . • • • • ~ • • ~ ~ • • • • • • • • • • • 4 . .. .., . .. ... . ^Z~, , .. . EXHIBIT C JORDAN RANCH ANNEXATION Background . . ~ . > . . ~' ' f. ~~~ ~~ E X H I ~ I T C • 3y~ • Mission Valley Properties 7828.000.000 • Jordan Ranch -Tract 8024 February 11, 2011 • AUTHORITY • • The Dublin City Council formed the Fallon Village Geologic Hazard Abatement District • ("GHAD" or "District") on December 4, 2007, under authority of the California Public • Resources Code (Division 17, commencing with Section 26500). Included within the District were 1,043 single-family residences and adjacent open spaces within the Fallon Village • development (Subdivision 7586). The Dublin City Council members act as the Board of • Directors of the Fallon Village GHAD. • Section 26509 of the Public Resources Code requires a Plan of Control, prepared by a • State-Certified Engineering Geologist, as a prerequisite to formation of a GHAD. An • Engineering Geologist, certified pursuant to Section 7822 of the Business and Professions Code, • prepared the original Plan of Control for the Fallon Village GHAD. The Business and • Professions Code requires a Plan of Control to describe in detail geologic hazards, their location, who is affected by them, and most significantly, a plan for the prevention, mitigation, abatement, • or control thereof. In accordance with the requirements of the Public Resources Code, a proposed • amendment to the original Fallon Village GHAD Plan of Control is to accompany the petition to • annex the Jordan Ranch Property into the Fallon Village GHAD. BACKGROUND • • A geotechnical investigation for the site dated July 13, 2009, was published by Berlogar • Geotechnical Consultants (BGC). The BGC report (Reference 1) summarizes a series of geotechnical investigations performed between 1998 and 2005, consisting of solid flight, hollow stem, continuous core and hand auger borings and test pits. The BGC report also contains the • boring logs from an environmental subsurface investigation by Northgate Environmental • Management in 2005. The locations of these explorations are depicted on the attached • Geotechnical Corrective Grading Plans (Figures 2 through 5). • PROPOSED DEVELOPMENT • The approved Vesting Tentative Map for the project was prepared by Ruggeri-Jensen-Azar • (RJA) and is dated June 23, 2010. The overall 185-acre site will consist of two neighborhood • development phases. The initial 66-acre Phase 1 development area will consist of approximately • 252 single-family residential lots, streets, and a neighborhood park. These developments will be • located on the northern half of the site. Grading is expected to involve sheet fills approximately 40 feet thick, and cuts up to 60 feet deep. Cut slopes are shown as high as 70 feet, and fill slopes • up to about 25 feet in vertical high are planned. • Development of Phase II will involve approximately 528 single- and multi-family residential • units, streets, a school site, a community park, a water quality basin, and commercial • development. As planned, there will be a total of 780 residential units. • C-1 . • GEO • I N C O R P O R A T E D • 0 o 0 0 0 0 0 0 0 0 0 0 0 0 o ~ 0 o ~ 0 o ~ 0 Q JORDAN RANCH ANNEXATION Geology 0 0 0 0 ~ -.~-ate' ~ ~ \ tr' + ~ ~ ~ i r . . _ , _ _ ~ ~ ~ ~ mot.,, s, .i .,.v , ' b } ~ r fff ~1 ~ w~. Mission Valley Properties 78?_8.000.000 Jordan Ranch -Tract 8024 February 11, 2011 REGIONAL GEOLOGY AND GEOLOGIC MAPS The site is located within the Coast Ranges geologic province of California, a series of • northwest-trending ridges and valleys. Regional geologic maps were reviewed as part of the • Geotechnical Exploration and Recommendations Reports for the Jordan Ranch site. Along with others, regional geologic maps of the area have been prepared recently by Graymer (1994). The regional mapping prepared by Graymer indicates that the site is underlain Tassajara/Green Valley formation. Regional mapping shows that bedrock units are generally trending in a • northwest-southeast direction, are gently to moderately dipping in the southern portion of the site, and are moderately to steeply dipping in the northeastern portion of the site. The dip of the bedrock is variable on the site with the predominant direction to the south. • SITE GEOLOGY The geologic units mapped on the site include bedrock and surficial deposits consisting of fill, alluvium and colluvium. The geologic units described below are adapted from a geotechnical • investigation report completed by BGC for the site in 2009. In general, alluvial and colluvial deposits are located on the lower-lying areas of the site. Undocumented artificial fill overlies the alluvium and colluvium in some locally disturbed areas. On the higher portions of the site, the colluvium tends to be a thinner mantle on the bedrock • materials. GEOLOGIC UNITS • Existing Fill. Artificial fill was identified on the area of the western ranch buildings and for the • stock pond embankments. It appears that the fill encountered was derived from onsite excavation during the construction of the cut portions of the existing building pad or minor site grading. • Alluvium. Alluvium underlies the wider portions of valley floors on the subject property. • Alluvial soils in the site vicinity typically consist of very stiff silty clay with minor amounts of interbedded gravelly clay. On the southwest portion of the property, alluvium may be as much as 28 feet in depth. • colluvium. The Quaternary colluvial deposits mapped across the site consist of a clay to silty clay with rock fragments derived from the weathering of onsite materials. The colluvial materials range from a few to 12 feet in thickness. This material generally is moderately to highly expansive. Where colluvium is located on sloping ground, it maybe characteristically unstable. Bedrock. Bedrock was encountered from 0 to 28 feet below the existing ground surface. The bedrock encountered included sandstone, siltstone and claystone. The bedrock was weak to moderately strong, moderately to highly weathered and closely fractured. In general, bedding trends to the northwest and dips to the south. D-1 _ , • ~~~f~~o • I N C O R P O R A T E D • • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • GROUNDWATER During the site explorations conducted between 1998 and 2005, groundwater was encountered in several exploratory soil borings and test pits. Groundwater levels ranged between 7'/z and 28 feet • below the existing ground surface. As noted in the Geotechnical Investigation report, BGC suspects that the groundwater levels represent perched groundwater surfaces. Fluctuations in groundwater levels may occur seasonally and over a period of years because of precipitation, changes in drainage patterns, irrigation and other factors, including the planned installation of • subsurface drains in conjunction with the planned remedial grading. Even with the planned • subsurface drainage, future irrigation may cause an overall rise in groundwater levels. SEISMIC SOURCES • No active faults are known to pass through the property, according to published geologic maps (Dibblee, 1980; Crane, 1995; Graymer, et al. 1994). The nearest State-of-California-zoned, active' faults are the Calaveras fault located approximately 5 miles to the southwest and the Greenville fault located about 6 miles northeast of the site. As reported by BGC, no active or • potentially active surface faulting was observed on the site. A "blind" thrust fault has been mapped northeast of the property by Dibblee (1980), Crane, (1995) and Graymer, et al., (1996), at the northern edge of the Livermore Valley. This mapped thrust fault is not considered active by the State of California or by local geotechnical i consultants. As reported by BGC, no active or potentially active surface faulting was observed on the site. While the probability of ground rupture is considered low, as described in the ENGEO Geotechnical Reports, there is a high probability that the site and any improvements i will be subject to strong ground shaking during the lifetime of the project. • ~ An active fault is defined by the State Mining and Geology Board as one that has had surface displacement within Holocene time (about the last 10,000 years) (Hart, 1994). The State of California has prepared maps designating zones for special studies that contain these active earthquake faults. D-2 • l~r~r~~+~~~EO INCORPORATED • ~3 • ~ • • • • • • • • • • • • • E • • X • • H • EXHIBIT E • I • JORDAN RANCH ANNEXATION • Funding and Acceptance • I • • T • • • • E • • • • • - ~ _ - s : _ _ - - - • '~::a`~' ~ - ~ ; ~ ~ ~ ~ ~ 9 y~ • ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • FUNDING AND ACCEPTANCE OF RESPONSIBILITY BY THE DISTRICT An annual assessment is already being levied for properties in the Fallon Village GRAD under the provisions of the existing Plan of Control and Engineer's Report. Ultimately, an annual • assessment shall be levied on all annexed residential and nonresidential parcels with habitable • building areas within the Jordan Ranch development. 1. Activation of Assessment • The assessment shall be levied by the GHAD on each individual parcel beginning the first fiscal year following issuance of a building permit for that parcel. 2. Responsibility for GHAD Activities The party that, on the date each Final Map is recorded within the GHAD annexation boundaries owns the developable parcels shown on that Final Map, shall have the responsibility to perform all the activities of the GHAD on property within that Final Map. Such responsibility shall • automatically transfer to the GRAD at 9:00 a.m. on the day exactly three years after the first residential building permit within the annexation area is issued by the City of Dublin provided that the items listed under item No. 4 in this section have been completed. This turn-over date may be extended at the sole discretion of the project developer provided that the assessments • shall continue to be levied during the extension period and that notice of such extension is • delivered to the GHAD Manager at least 30 days prior to the turn-over date. The petitioners for formation of the GHAD intend that the approximately three-year period between the initial levying of the GRAD assessment and the GRAD becoming responsible to perform activities on property within each Final Map will allow the District to accumulate reserve funds without • incurring significant expenses. 3. Ownership of the Open Space • Ownership of the open space will pass from the owner/developers to the District on, or • approximately on, the date the District commences its activities and becomes responsible for oversight of the actual physical maintenance of the open space as provided in this section. • 4. Process for Transferring Re~onsibility for GHAD Activities After the Transfer Eligibility Date for parcel(s), the process for transferring responsibility for performing GHAD activities on such parcel(s) shall be as follows: • (a) In the calendar year of the Transfer Eligibility Date or in any subsequent year, at its • discretion, the developer may apply to the GRAD ("Transfer Application") to transfer the responsibility for performing GRAD Activities for parcel(s) to the District. E-1 ~---,~1'~~, i INCORPORATE D • • ~ • Mission Valley Properties 7828.000.000 Jordan Ranch -Tract 8024 February 11, 2011 • (b) Within 45 days of receiving such notice, a representative of the GHAD shall verify that all the facilities for which the GRAD will have maintenance responsibility have been constructed and maintained according to the City-approved plans and specifications for the individual improvements, and that such facilities are operational and in good working order. ~ (c) Within 15 days of such inspection, the GHAD will send the developer a list ("Punch list") of all of the items that need to be constructed, repaired or otherwise modified. (d) The developer may notify the GHAD when it has completed the items identified on the Punch list. (e) Within 30 days of receipt of such notice, the GRAD shall verify whether all Punch List items • have been completed. If such items have been completed, the GHAD shall notify the • developer that the District accepts responsibility for performing all future GRAD Activities on the parcel(s). (f) The GHAD shall confirm that the reserve requirement defined in the approved Engineer's • Report has been met. As part of the transfer, the developer of parcel(s) to be transferred will provide the GHAD, for its use, copies of the applicable geotechnical exploration reports, grading plans, corrective grading • plans, improvement plans, field-verified geologic maps, as-built subdrain plans or other pertinent • documents as requested by the GRAD. E-2 • • INCORPORATE D • • • ~ • • • • • • • • • • • • • E • • X • • EXHIBIT F • I • • FALCON VILLAGE GEOLOGIC HAZARD ABATEMENT DISTRICT Jordan Ranch Development B • GHAD Disclosure and Right of Access • I • • T • • • F • • • • • • . . _ _ • _ . _ _ 5. r _ 4 wW_ .r rt - ~ r --~-a"~` ._..dl~' ~~id':~L .E`, ALT^^ ~t~, ~F a ~ ~ • DECLARATION OF RESTRICTIVE COVENANTS, RIGHT OF ENTRY AND DISCLOSURES REGARDING • GEOLOGIC HAZARD ABATEMENT DISTRICT This Declaration of Restrictive Covenants, Right of Entry and Disclosures Regarding Geologic Hazard Abatement District (the "Declaration") is made this day of , 2011 (the "Effective Date"), by BJP-ROF Jordan Ranch, LLC, a California limited liability company • ("Declarant"). RECITALS A. Property. The following "Right of Entry and Disclosures" regarding a Geologic Hazard • Abatement District shall be recorded against all land within Tract 8024 as filed on • in Book of Maps at Pages ,Official Records of Alameda County in the City of Dublin, County of Alameda, State of California ("Property"). B. The City of Dublin has approved a subdivision on the Property. A condition of approval of • the tentative map for Tract 8024 was that the Property be annexed into the Fallon Village Geologic Hazard Abatement District ("GHAD") to ensure proactive and effective maintenance of all subdrain facilities. • C. Under the authority of California Public Resources Code section 26500, et seq., the Dublin • City Council on December 4, 2007 formed and established the Fallon Village Geologic Hazard Abatement District ("Fallon Village GHAD" or "District") to prevent, mitigate, abate or control potential geologic hazards within the boundaries of the GRAD. On • , 2011, the Fallon Village GHAD Board of Directors adopted Resolution , • upon the application of Declarant, annexing the Property into the Fallon Village GHAD. NOW, THEREFORE, Declarant, as the owner of the Property, for itself, its successors and assigns does hereby declare as follows: 1. Notification and Disclosure of Geologic Hazard Abatement District: The Declarant hereby gives notice and discloses that the Property is a part of the Fallon Village GHAD, a Geologic Hazard Abatement District formed pursuant to the laws of the State of California. The Board • of Directors of the Fallon Village GHAD are the members of the Dublin City Council. Pursuant to the Plan of Control for Annexation of Jordan Ranch Development to Fallon Village Geologic Hazard Abatement District as it may be amended from time to time (the "Plan of Control"), the Declarant and the Fallon Village GHAD are afforded certain responsibilities and rights relating to the prevention, mitigation, abatement and control of • potential geologic hazards on the Property. The powers of the Fallon Village GRAD include the power to assess lot owners within the Property for the purposes set out in the Plan of Control. • 2. Property Access; Right of Entry: The Declarant hereby grants the Fallon Village GHAD, its • officials, employees, contractors and agents anon-exclusive, perpetual easement (the "GHAD Easement"), for continuing and perpetual access to and across the Property for the purposes and responsibilities set out in the Plan of Control. The GHAD Easement shall become effective upon the conveyance of the various lots within the subdivision by grant ~ F-1 • INCORPORATE D • • • • deeds including the Deed Statement set out in Section 5 below. Until such conveyance and • the effectiveness of the GHAD Easement, the Declarant by executing and recording this Declaration, hereby contractually affords the Fallon Village GHAD an irrevocable right of • entry over and upon the Property for the purposes of the GHAD Easement as set out above. • 3. Binding on Successors and Assigns: The covenants and provisions of this Declaration shall be binding upon any and all owners of the Property, their successors and assigns. • 4. Deed Statement: Any conveyance of all or a portion of the Property shall include in the deed • conveying such property interest the following statement: • 5. "This conveyance is made subject to the Declaration of Restrictive Covenant, Right of Entry • and Disclosures regarding a Geologic Hazard Abatement District, recorded in the Official Records of Alameda County as Instrument No. on , 2011." • 6. Enforcement: The Fallon Village GHAD shall have the right but not the obligation to enforce • the provisions of this Declaration. 7. Modification or Termination: This Declaration shall not be modified, amended or terminated without the written consent of the Fallon Village GHAD. • • Executed as of the Effective Date. • Declarant: BJP-ROF Jordan Ranch, LLC, a Delaware • limited liability company • By: • Its: • • • • • • • • • • • • • • F-2 • ~~,~'fit - • ~_~c~ INCORPORATE D • . ~9 sic ~ ®N~,A~9N~3CATE®~ ®F TERROT®RY T'O 1"I`9E FALL®N VILLAGE GAOL®GIC P~AZA~® A~AI'EN9~I~T ®ISTRICT You are .hereby notified that on flay 3, 2011, at 7:00 p.m. in the City Council Chambers at 100 Civic Plaza, Dublin, California 94568, the Board of Directors of the Fallon Village Geologic Hazard Abatement District ("Fallon Village GHAD") will consider the annexation of certain territory to the Fallon Village GHAD pursuant to the attached "Petition for Annexation of Territory to the Fallon Village Geologic Hazard Abatement District Pursuant to Division 17 of the Public Resources Code of the State of California" (the "Petition"). The territory proposed for inclusion in the Fallon Village GHAD is located in the area generally known as Jordan Ranch, and is described in detail in the Petition. The annexation of the territory to the Fallon Village GHAD will require the levy of an assessment to .pay for the costs and expenses of the activities described in the plan of control for the Jordan Ranch Development ("Plan of Control"). The Plan of Control can be reviewed at City Hall at the address set forth below. The Plan of Control may be duplicated at cost upon request. The purpose of this Hearing is to receive and consider any and all objections to-the annexation of the territory to the Fallon Village GHAD. Valid objections • can be made in writing, not later than the time set for hearing, by any owner of real property within the boundaries of the territory proposed for annexation. Objections shall contain'a description of the land by lot, tract and map number, and shall be signed by the owner of such property. Objections must be mailed or delivered to the address set forth below and must otherwise comply with the provisions of Public Resources Code Section 26564. For further information, or to lodge an objection, please contact Gary Huisingh, District Manager, at 100 Civic Plaza, Dublin, CA 94568, or at (925) 833-6630. aroline Soto, District Cler I~I~ e To the Resolution