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screening will be evaluated in further detail, based on the criteria developed, are <br /> provided in the table below. <br /> Shortlisted Alternatives <br /> Alternatives Pros Cons <br /> Maintain Groundwater Pumping Allotment <br /> A. Modified PFAS • Cost: Less expensive • Reliability: Lack of well <br /> Treatment & Well than baseline supply redundancy and <br /> Rehab Project (Well 8 reduced peaking ability <br /> Only) vs. baseline <br /> B. New City Wells Outside • Cost: Less expensive • Water Quality: Potential <br /> PFAS Plume (west side than baseline for contaminant <br /> of City) • Operations: No near- mobilization (long-term) <br /> term PFAS treatment • Timing of <br /> Implementation: Longer <br /> implementation due to <br /> well locating and <br /> permitting <br /> C. Zone 7 Pump on City's . Cost: Potential cost Institutional Complexity <br /> Behalf (w/ new sharing / economy of & Timing of <br /> infrastructure) scale if can provide Implementation: <br /> regional benefits Dependent on findings / <br /> • Operations: Zone 7 schedule / approval of <br /> performs O&M Zone 7's groundwater <br /> planning efforts <br /> D. Regional PFAS • Cost: Potential cost Institutional Complexity <br /> Treatment Facility sharing /economy of & Timing of <br /> (located at Pleasanton scale if can provide Implementation: <br /> OSC) regional benefits Dependent on findings / <br /> • Operations: Zone 7 schedule / approval of <br /> performs O&M Zone 7's groundwater <br /> planning efforts <br /> Other Supply Sources <br /> A. 100% Wholesale • Operations: No Well • Institutional Complexity: <br /> Purchases from Zone 7 O&M required Zone 7 commitment to <br /> • Timing of long-term supply <br /> Implementation: • Reliability: Dry year <br /> Potentially quicker uncertainty; limited <br /> dependent on scope of redundancy & peaking <br /> Zone 7 needed ability w/out wells <br /> improvements. Cost: Potential new <br /> Zone 7 infrastructure <br /> required; wholesale <br /> rate escalations <br /> Page 3 of 4 <br />