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Home My WebLink AboutItem 4.9 Draft EIR for LAVWMA Export Capacity Proj AGENDA STATEMENT CITY COUNCIL MEETING DATE: November 13 , 1984 SUBJECT: Report from Planning Director regarding Draft EIR for LAVWMA Export Capacity Expansion Project EXHIBITS ATTACHED: Summary excerpt from Draft EIR for LAVWMA Export Capacity Expansion Project Complete Draft EIR available for review in Planning Department Office. ) RECOMMENDATION: Accept report from Planning Director P P g FINANCIAL STATEMENT: None DESCRIPTION: The Livermore-Amador Valley Water Management Agency (LAVWMA) has prepared a Draft Environmental Impact Report (EIR) for its Export Capacity Expansion Project. The project would expand the wastewater export system capacity from 16 . 62 million gallons per day (mgd) to 21 mgd an increase of 4 .38 mgd or 26.4%. The project would be operating by 1987 and would provide export capacity to the Tri-Valley area for approximately 6 or 7 years thereafter. The total estimated capital cost of the project. is $6.2 million. The EIR focuses on two environmental issues: 1. Effects on San Lorenzo Creek 2 . Growth including effects The EIR finds that there will be no significant adverse effect on San Lorenzo Creek. The applicable water quality standards will be met, and the fish and shellfish will not be adversely affected. The EIR finds that the project would support currently planned and projected Tri-Valley growth rates. The analyses show that the increases in Tri-Valley area traffic, air pollution, and demand for water supplies induced by the project will not cause standards to be exceeded. The EIR also finds that the environmental effects on the Tri- Valley areas with the project would not be significantly different than those without the project. Staff notes that it is beyond the scope of this EIR to analyze site specific land use and development proposals and the specific effects of those proposals. The EIR appears to be complete and adequate. Comments from the City of Dubin to LAVWMA are not necessary. ----------------------------------------------------------------- ITEM NO. (_9 COPIES TO: LAVWMA Planning Department i5 1�41' LIVERMORE -AMADOR VALLEY WATER MANAGEMENT AGENCY ME= t;A -X E7 ` N "E'� JON 21 MGD DRAFT ENVIRONMENTAL IMPACT REPORT c H 2 Am 333 September 1984 Sch. No. 84042407 ATTACHMEN I ®® SUMMARY I The Livermore-Amador Valley Water Management Agency is re- sponsible for the collection and disposal of treated efflu- ents .from the City of Livermore wastewater treatment plant and from the Dublin San Ramon Services District wastewater I treatment plant which serves the Cities of Pleasanton, Dub- 1 lin, and San Ramon. LAVWMA' s system carries the treated wastewater from these Livermore-Amador Valley communities unitiest west through an 15. 6-mile-long exporine. The EBDA pipeline Bay Dischargers Authority (EBDA) pipeline carries the wastewater to a discharge point in San Francisco Bay. LAVWMA is now exporting a maximum of approximately 14.0 mgd through its system which has a design capacity of 16. 62 mil- '� lion gallons per day (mgd) . Although the overall system has San- sufficient capacity to last 4 to 5 years, the Dublin San Ramon Services District capacity allocation is almost ex hausted, and Pleasanton could run out of capacity as soon as 1987 . Livermore' s share could last for approximately 6 more years . THE PROPOSED PROJECT .E i The maximum flow that EBDA will now accept from LAVWY is 19 . 72 mgd. The proposed project would expand LAVWMA' s export system capacity from 16 . 62 mgd to 21 mgd--an increase of 4 . 38 mgd over the existing capacity and 1. 28 mgd over the EBDA limit. This increase would serve the area for approxi- mately 6 to 7 more years . According to a decision by the LAVWMA Board of Directors : O None of the proposed capacity increase will be restricted as to its type of origin (i.e. , residen- tial, office, commercial, industrial) . o None of the new capacity can be used for the Las Positas project, a proposed major development north of the City of Livermore ,on more than 4 , 000 acres . o Each member agency will receive 33. 33 percent of the increase . o The costs associated with the expansion will be paid for by the users of the additional capacity. S-1 OPERATION AND IMPROVEMENTS ;: =' yr LAVWMA flows exceeding the EBDA According to the proposal, onl when EBDA `°'? limit would be discharged to the EBDA system {y , has capacity in its pipeline. When EBDA has insufficient capacity, all or part of the 1 . 28 mgd excess flow would be discharged to the San Lorenzo Creek Flood Control Channel *-,- 3 which flows to the Bay. The facilities that would be modified are: (1) the export (3) the export pump station, (2) the regulating reservoireline. A third ' . i '. pipeline, and (4) the emergency bypass pip reservoir will be built and the total reservoir capacity will expand to 19 .79 million gallonmotorsowillgbe installed. added to each pump, and new 600-hp ipeline would be replaced with thicker- Two sections of the p walled pipe, and a dechlorination facility will be built to ass to the San Lorenzo Flood remove chlorine from the bypass stem operation would Control Channel. Various changes stin and transport the be made to efficiently p. { ?. increased flows . - - a CONSTRUCTION PERIOD AND COST • r Construction would start on the proposed project in mid-1986 ' and, would be operating in 1987 . The total es- the project timated capital cost for the project is $6.2 million. _, THE ENVIRONMENTAL ISSUES F'• The key environmental issues that were identified during the Y preparation of the EIR are: 1 , The effects of discharge into the San Lorenzo Creek Flood Control Channel. effects including, capacity alloca- 2. Growth inducing ent growth, traffic , tions , population and employm general. air quality, .water supply, and growth in g 3. Alternatives DISCHARGE TO THE SAN LORENZO CREEK FLOOD CONTROL CHANNEL The analysis of the discharge showed there will be no signif- ' icant adverse effect on the receiviSincetmitigation tooavoid periods when bypass is necessary. adverse effects has been built lnnecessaryof the bypass system, no further mitigation appears GROWTH INDUCING EFFECTS on the foundation of the general plans The project is built up The new wastewater export of the cities served by LAVWMA. S-2 I 1 capacity provided to the valley would support community growth rates as currently planned and projected. While each city within the service area will grow at varying rates for varying lengths of time, each according to its own adopted plan for growth, the aggregate effect will be toaprovide growth capacity in the valley for up to 7 years project is operating. The level of growth that can be reached in each community if the 21 mgd Export Expansion Project is built should not cre- ate significant adverse effects upon the region' s environ- ment. The analyses show that the increase in traffic, the increase in air pollutants, and the increased demand on water supplies are not significantly different in relation to to- day' s levels nor will the increases :cause standards to be exceeded or supplies to be substantially_adiminished. _ ALTERNATIVES :. . _ Two alternatives were considered: 1 . The No-Project Alternative. No new capacity would be provided if an expansion project is not built. The total capacity available to LAVWMA would thus remain at 16 . 62 mgd ADMM. 2. The EBDA Contract Alternative.: The capacity of. the export system would be increased to 19 .72 mgd ADMM, the maximum discharge volume now allowed in LAVWMA' s agreement with the East Bay Dischargers Authority. The various features and impacts of the two alternatives and the proposed project are provided in Table S-1 . Comparison will indicate there is little difference between the impacts of the alternatives and the project and that differences -are not significant. An SFR72/034 S-3 Table S-1 FEATURES AND ENVIRONMENTAL IMPACTS OF THE PROPOSED PROJECT AND THE ALTERNATIVES (with reclamation in Livermore) EBDA No-Project Contract Proposed Feature/Analysis Area Alternative Alternative Project Total Capacity Available (gpd ADM) 3.97 5.01 5.43 Dublin San Ramon Services District 5.63 6.65 7.09 Pleasanton 7.02 8.06 8.48 Livermore 16.62 19.72 21.0 LAVWMA Service Area Year Capacity Depleted 1983 1990 1993 ub Dlin San Ramon Services District 1987 .1991 1993 Pleasanton 1990 1994 After 1995 Livermore - Population Served 27,358 32,216 34,598 Dublin San Ramon Services District 41,397 32,216 " 46,617 Pleasanton 63,327 68,547 69,900 Livermore 132,082 145,571 151,115 LAVWMA Service Area Employment Served 8,901 13,097 15,519 ub Dlin San Ramon Services District 17,682 23,712 27,460 Pleasanton 25,565 28,978 29,900 Livermore 52,148 65,787 72,879. LAVWMA Service Area Hich Volume Water Industry Served (acres) 0. 10 10 4 I Dublin San Ramon Serf ices District 0 10 10 Pleasanton 0 10 10 Livermore 0 30 30 LAVWMA Service Area Environmental Issue I Population, employment, and wastewater Growth alysiseS" by Analysis by Analysis flow Area from 1983 Area from 1990 Area from 1993 to 1990 when to 1994 when to 1995+. i growth becomes growth becomes limited. limited. 4,563,600 VMT 4,786,300 VMT 4,940,000 VYT Traffic per day per day per day Air quality Total emission Total emission Total emission & ozone 7.6% & ozone 3% less & ozone 245 less than than project- reduction from project-related related levels. 1983 levels. levels. of avail- 40% of avail- 44% of avail- 49% supplies Water Supply able supplies able supplies SFR72/034 S-4