Draft Environmental Impact Report - East Bay Municipal Utility District

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Estates Reservoir Replacement Draft Environmental Impact ReportAnalysis of AlternativesTABLE 4.2Estates Reservoir ReplacementAlternatives of the ProjectComplete Alteration Category Option 4Proposed Project (1,4)(Similar Impacts for Option 5)Schedule and Cost Two new buried tanks at EstatesPreservation Category Option 1 (2, 4) Adaptive Reuse Category Option 2 (3,4)Preserve Estates roof andfountains with new tanks underneath(Similar Impacts for Option 3)Remove Estates roof structure and preserve oneor more fountains with two new tanks underneathConstruction Schedule 2 years, demolition and replacement 3 years, associated with retrofit construction 3 years, associated with retrofit constructionProject Cost $15 Million $21 Million $16 MillionPotential Environmental ImpactsVisual Quality Less Than Significant - With Mitigation Less Than Significant - With Mitigation Less Than Significant - With MitigationGeology, Soils, Seismicity Less Than Significant - With Mitigation Less Than Significant - With Mitigation Less Than Significant - With MitigationBiological Resources Less Than Significant - With Mitigation Less Than Significant - With Mitigation Less Than Significant - With MitigationCultural Resources Significant/Unavoidable -With Mitigation Less Than Significant Significant/Unavoidable -With MitigationTraffic and Circulation Significant/Unavoidable -With Mitigation Significant/Unavoidable -With Mitigation Significant/Unavoidable -With MitigationAir Quality Less Than Significant - With Mitigation Less Than Significant - With Mitigation Less Than Significant - With MitigationGreenhouse Gases andClimate ChangeLess Than Significant - With Mitigation Less Than Significant - With Mitigation Less Than Significant - With MitigationNoise and Vibration Significant/Unavoidable -With Mitigation Less Than Significant - With Mitigation Significant/Unavoidable -With MitigationNotes: 1. Option 4 (Complete Alteration) described in the 2008 RHAA Concept Design Report (updated 2009)t; also the preferred landscape plan and alternative.2. Option 1 (Preservation) described in the 2008 RHAA Concept Design Report (updated 2009).3. Option 2 (Adaptive Re-Use) described in the 2008 RHAA Concept Design Report (updated 2009).4. Dingee Reservoir will be removed from service once the replacement Estates Reservoirs are constructed and in service.sb09_001.doc 4-10 7/23/2009
Estates Reservoir Replacement Draft Environmental Impact ReportAnalyses of AlternativesCriteria for selection of the preferred alternative included: project cost and logistics,potential for recycle/reuse on-site, seismic stability, reduced truck/traffic and visualenhancement. Option 4 is the preferred alternative in this EIR as it minimizes construction,operating and visual impacts, and is also the most cost efficient with the shortestconstruction duration. Option 4 requires the least amount of imported fill, also minimizingtraffic, air quality, greenhouses gases, and noise impacts. Views of the tanks from EstatesDrive are all but eliminated by incorporating the buried tank design into the overalllandscape plan. The process of lowering the existing embankment to provide on-site fillalso opens up distant views towards the San Francisco Bay and removes Estates Dam fromDSOD jurisdiction. Walking paths along Estates Drives will also be improved.4.4 No Project AlternativeDescriptionUnder the No Project Alternative, the proposed Project would not be implemented. None ofthe proposed facility improvements described in Chapter 2, Project Description, wouldoccur. The storage and operational improvements needed in the Dingee and PiedmontPressure Zones (noted in Chapter 2 and restated below) would not be constructed, and thedam would continue to violate DSOD requirements. This alternative would therefore notmeet the Project purpose.Environmental AssessmentIf the Estates Reservoir Replacement Project were not implemented, none of the needs forthe Project would be achieved, and none of the benefits associated with the Project wouldoccur. The Estates Reservoir Replacement Project responds to a variety of needs,summarized as follows and detailed in Section 2.2 of Chapter 2:Resolve distribution system issues including poor water quality due to excess volumein the Estates and Dingee Reservoirs.Replace inefficient storage in the pressure zone with optimal sites from a hydraulicand cost perspective.Replace aging distribution facilities (storage and pumping) in the pressure zone.Address seismic deficiencies at the dam foundation, identified as a result of a reviewof Estates Dam, requested by DSOD.Maintain an acceptable aesthetic site environment given the existing roof architecture.EBMUD is obligated to comply with water quality regulations and permit conditions, and tomanage its distribution system facilities for optimal efficiency and cost effectiveness, withthe ultimate goal of providing adequate water service to its customers. Consequently, if theEstates Reservoir Replacement Project were not implemented, EBMUD would have toimplement other strategies to address these issues (where other strategies exist). Suchstrategies could include implementing some of the alternatives listed in this chapter, whichwere considered and rejected.sb09_001.doc 4-11 7/23/2009
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Estates Reservoir ReplacementDraft
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TABLE OF CONTENTSEstates Reservoir
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Estates Reservoir Replacement Draft
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ACRONYMS AND ABBREVIATIONSABABAGAPC
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SUMMARYS.1 IntroductionThis Draft E
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Estates Reservoir Improvements Draf
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Chapter 2Project Description2.1 Ove
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Chapter 3Environmental Setting, Imp
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3.5 Cultural Resources3.5.1 Approac
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3.6 Traffic and Circulation3.6.1 Ap
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Page 164 and 165: Estates Reservoir Replacement Draft
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Page 232 and 233: APPENDIX APublic InvolvementPublic
Page 234: APPENDIX BNotice of PreparationAUGU
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Dingee Pressure Zone Improvement Pr
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FIGURESDingee Pressure Zone Improve
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Draft Environmental Impact Report - East Bay Municipal Utility District

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