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5.15 WATER RESOURCES However,the Phase 3 Improvements Project 2007 is currently underway and includes the installation of new influent screens,screening washers,and influent pumps,among other treatment process improvements (West Yost and Associates,2001).These improvements will increase the treatment capacity of the WPCF to 8.5 million gallons per day (3,102 million gallons per year) of average dry weather flows, and are scheduled to be completed by March,2009. The WPCF permit,issued by the Central Valley RWQCB in September,2007,will allow for an effluent limit of 8.5 million gallons per day upon completion of the Phase 3 Improvements Project. TABLE 5.15-11 Average Influent Flows to the Lodi WPCF(2002-2005) Annual Flow Flows (million gallons per year) Domestic Wastewater(metered) 2,252 Industrial Wastewater(metered or estimated from water supply data) 131 Stormwater—Onsite (unmetered) 46 Stormwater—offsite (unmetered) 154 Total 2,583 Source: City of Lodi, 2006 TABLE 5.15-12 Current and Projected Wastewater Flow 2001 2020 (million gallons per day) (million gallons per day) Average Daily Flow 7.5 8.5 Peak Monthly Flow 8.5 9.6 Peak Daily Flow 9.7 11.0 Peak Daily Flow(dry weather) 8.9 10.0 Source: West Yost and Associates, 2001 The LEC project will discharge stormwater runoff and a minimal amount of sanitary wastewater to the WPCF. A will-serve letter from the City of Lodi indicating that there is sufficient capacity to receive domestic waste from the LEC is included in Appendix 2D. Therefore,the potential for cumulative impacts of the proposed LEC project combined with other projects would be less than significant. The LEC project will use potable water from a new onsite well for eye-wash stations and sanitary facilities,as needed. The overall volume of potable water to be used by the LEC is less than 0.4 acre-feet per year with a maximum pumping rate of less than 1 gallon per minute. Groundwater is available within the Eastern San Joaquin Subbasin to supply the LEC. In the vicinity of the LEC project site, groundwater recharge and water-use returns exceed the current and expected future pumping,which occurs primarily for agricultural use. Because the LEC project,even in combination with other groundwater water uses in the area,would not substantially deplete groundwater supplies such that there would be a net 5.15-24 SAC/3713221082340005(LEC_5.15_WATER_RESOURCES.DOC)