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ATTACHMENT#1 Water Supply Alternatives Baseline-PFAS Treatment&Well Rehabilitation Project.Rehabilitate City's existing wells and add PFAS treatment. Project currently on hold. Groundwater Supply Options (maintain groundwater pumping quota) 1. Modified PFAS Treatment(Well 8).Similar to the Baseline, but would involve adding PFAS treatment to one well(vs. all three). 2. New City well(s)outside PFAS plume(west part of the City). City-owned well, with or without treatment for other constituents(non-PFAS). Could also consider use of existing SFPUC wells. 3. Zone 7 pump on City's behalf.Zone 7 to pump from existing wells(if there is capacity)or new well(s)outside PFAS plume(with or without treatment). 4. Regional PFAS Treatment Facility. New facility constructed by Pleasanton(or jointly constructed by Pleasanton/Zone 7)and operated and maintained by Zone 7 to produce regional water supply, including Pleasanton's groundwater pumping quota. 5. Blending/dilution.Blend existing well supply with water from Zone 7 to reduce PFAS concentration below future MCLS or lower, if possible. Other Supply Sources 1. 100%purchases from Zone 7.Agnostic of source(could include State Water Project groundwater, and future additions to Zone 7's supply portfolio). 2. Purchases from another agency.Either wheeled through Zone 7's system or direct connection to wholesaler(SFPUC or EBMUD). 3. Local alternative supplies.E.g., desalination, stormwater capture,satellite wastewater treatment. Demand Management 1. Expansion of non-potable system. Expand non-potable supply beyond what's projected in UWMP(-500 AFY), using recycled water and/or non-potable groundwater. 2. Long-term water use efficiency(WUE). Invest in permanent demand reduction measures(e.g., turf replacement), beyond existing/planned WUE. Note:does not include short-term conservation(i.e., behavioral changes).