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A A.' "k WOODARD &CURRAN demands within River Islands.$ The City issued a Recycled Water User Permit to Reclamation District 2062 to allow them to irrigate parks, medians, and street side landscaping with recycled water. This recycled water system will be owned and operated by Reclamation District 2062. 2.1.5 Water Conservation Although the City's population has steadily increased over recent years, the increase in total water demand has been buffered by a general decline in per capita water use since 2004,as described in the City of Lathrop 2015 UWMP.The City continues to implement water conservation programs. Water conservation and demand management are an integral part of the City's water management strategy. The City of Lathrop is committed to integrating water conservation into future supply and demand solutions for both the water system and the wastewater treatment/reuse system. The City implements the following demand management measures and best management practices: • Distribution system water loss auditing and water loss controls; • Enforcement of its Water Waste Prevention ordinance; • Metering and monthly billing of all water customers; • Public education and outreach; • Full time water conservation program coordination and staffing; and • Free services to help customers use water wisely in sectors, including large landscape irrigation. The Water Conservation Act of 2009 (SBx7-7) required urban water retailers to set a total gallons per capita per day (GPCD)water use reduction target of 20 percent by year 2020 from a calculated baseline water use. In 2012,the City adopted its 2020 target of 188 GPCD. In 2016, per capita water use dropped to 147 GPCD, which is well below the City's SBx7-7 reduction target; however, this was during a period of mandated reduction in urban water use due to drought.Additional details regarding the City's conservation efforts can be found in the City's 2015 UWMP. 2.2 Future Water Supplies As discussed above,the City is currently reviewing phased upgrades to the Well 21 WTF,which may eventually expand its treatment capacity to 4,500 gpm. This could allow for the treatment of the total maximum capacity of Wells 9, 10, and 21. The City is also reviewing options to bring Well 9 back online. For purposes of supply planning, the City is currently assuming Wells 21 and 9 will remain off-line(a conservative assumption). In addition to groundwater wells,the City's SSJID supply is anticipated to increase from 6,887 AFY to 10,671 AFY with the implementation of Phase II of the SCWSP. The timing of Phase II is unknown, but for water supply planning purposes it is assumed that SSJID Phase II will be available to the City by 2040, consistent with the City of Lathrop 2015 UWMP. Permits for construction of the infrastructure required for Phase II SCWSP are not yet known and will be identified in subsequent CEQA documentation for the project. However, if construction occurs in or near creeks and wetlands,a Streambed Alteration Agreement from the California Department of Fish and Wildlife and Section 401 and 404 permits from the Central Valley Regional Water Quality Control Board and The United States Army Corps of Engineers may be required. Encroachment permits may also be required depending on the alignment chosen for any 9 Recycled water is equal to the wastewater generated.Lake water is equal to the stormwater collection volume and runoff.It is not required that lake water be metered. Califia(0011533.00) 22 Woodard&Curran, Inc. River Islands Phase 2 Development Water Supply Assessment September 2020