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File Number: 16-041 <br />Currently, the WPCP produces secondary treated water, which is acceptable for use on golf <br />courses and other lawn areas not associated with picnic uses; secondary treated water is <br />currently in use on the City's two golf courses. It is not regulated or recommended for use in <br />areas encompassing public picnic areas or on private garden fruits/vegetables that are <br />consumed. A tertiary treatment system is necessary and required from a regulatory standpoint <br />for a residential fill station. Disinfected tertiary recycled water is the only type of recycled water <br />that can be used for residential landscaping (see attached Recycled Water Uses Allowed in <br />California). <br />The first residential recycled water fill stations in the Bay area were designed and opened by <br />Dublin San Ramon Services District (DSRSD) in 2014. It proved to be tremendously popular. <br />For water recyclers, these stations were an opportunity to showcase the benefits of recycled <br />water. For homeowners, they provide an opportunity to preserve landscape plants and trees <br />despite serious potable water use restrictions during the drought. One recycled water agency <br />noted the most satisfying benefit of their residential fill station program is educational outreach <br />because customers become educated about recycled water, and even active advocates for <br />increased use of a valuable and available resource. There are currently eight fill stations <br />operating in the Bay Area, including those opened by DSRSD, Central Contra Costa Sanitary <br />District, Delta Diablo Sanitary District, City of Livermore, and City of Brentwood. <br />Analysis <br />Currently, the WPCP produces 4.9 million gallons per day of secondary treated water. During <br />warm weather months, approximately 9 percent of this is sold to American Golf Corporation <br />for use on the City's two municipal golf courses and 6 percent is sold to EBMUD for use by its <br />customers. The remainder of the unused secondary -treated effluent is discharged into San <br />Francisco Bay. Should drought conditions continue this year, the City anticipates that 20,000 <br />gallons per day of tertiary -treated water could be made available for residential use. <br />The WPCP plans to install a 100 -gallon per minute tertiary treatment facility comprised of a <br />dual tank filter system and a 10,000 gallon recycled water storage/disinfection tank. These <br />facilities would be installed at the southern end of the Plant, close to Davis Street (see <br />attached diagram). Appropriate modifications would be made to fencing and sidewalk areas to <br />allow easy access to the facility when gates are open, but still provide security and prevent <br />inadvertent access to the rest of the wastewater treatment plant by the general public. <br />The plans would need to be approved by the Regional Water Resources Control Board, the <br />State Board's Division of Drinking Water, and East Bay Municipal Utility District (EBMUD). <br />WPCP staff has already had discussions with EBMUD. EBMUD would fast track the City's <br />application if or when it is submitted. The August 2015 notification from the Regional Water <br />Board (see attached) indicates its general approval of residential fill stations. <br />Much of the labor for the installation of the system would be done in-house by WPCP staff. <br />Fence, asphalt and sidewalk modifications would be done by contract and all required permits <br />would be obtained. The Engineering and Transportation Department would be consulted with <br />regard to optimizing traffic flow on Davis Street and determining operational hours for the fill <br />station that would minimize potential traffic flow impacts. <br />City of San Leandro Page 2 Printed on 2110/2016 <br />