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Section 6 2025 Urban Water Management Plan
<br />Water Supply Characterization City of Pleasanton
<br /> Public Draft | May 2026
<br /> 6-21 EKI Environment & Water, Inc.
<br />6.5.3 Recycled Water System Description
<br />In March 2014, the City commenced delivery of recycled water from DSRSD, starting with Val Vista Park,
<br />and expanded the service under a contractual agreement in 2015 as part of the City’s recycled water
<br />program expansion. The City constructed its non-potable distribution system to deliver recycled water
<br />landscapes from DSRSD’s RWTF to landscapes previously irrigated with potable water. Construction of the
<br />recycled water distribution system involved installing about 51,500 LF of new recycled water pipeline
<br />(ranging from 6- to 20-inch diameter) and about 22,400 LF of pipeline converted from the City’s potable
<br />distribution and repurposed for the recycled water system. The recycled water system connects to
<br />DSRSD’s RWTF and the City’s existing 8 million gallon (MG) recycled water reservoir (Tassajara Reservoir),
<br />which was converted from a potable water storage facility in 2017. In 2022, the City also added new
<br />recycled water pump station at the Ken Mercer Sports Park.
<br />The City developed the recycled water distribution system on the north-east side of Pleasanton, which is
<br />serviced by Livermore, concurrent with new development projects. Recycled water deliveries from LWRP
<br />to that portion of the City began in 2013-2014, initially under Livermore’s recycled water permit coverage
<br />and now under the City’s own permit coverage that was established in July 2015.
<br />Currently, the City has 98 permitted sites, which include 150 of the 161 metered connections initially
<br />targeted. The City provides recycled water primarily for irrigation customers, including City parks, schools,
<br />commercial property landscaping, streetscapes, and multi-family residential common areas. Additionally,
<br />the City has one customer with one dual plumbing and periodically supplies recycled water to construction
<br />sites during development. This supply offsets the use of potable water purchased from Zone 7 and local
<br />groundwater supplies.
<br />The City’s certified cross-connection specialist continues to work with the future customers along existing
<br />infrastructure in preparation for conversion to the recycled water system, as well as monitoring existing
<br />sites for regulatory compliance oversight.
<br />6.5.4 Potential, Current, and Projected Recycled Water Uses
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<br />Recycled water improves water supply reliability, preserves potable water supplies, and reduces
<br />wastewater discharges. Pleasanton’s recycled water users were originally serviced under the authority of
<br />DSRSD or Livermore’s General Order 96-011. In April 2020, Pleasanton, Livermore, and DSRSD transitioned
<br /> CWC §10633 (c-g)
<br />(c) A description of the recycled water currently being used in the supplier’s service area, including, but not limited
<br />to, the type, place, and quantity of use.
<br />(d) A description and quantification of the potential uses of recycled water, including, but not limited to,
<br />agricultural irrigation, landscape irrigation, wildlife habitat enhancement, wetlands, industrial reuse,
<br />groundwater recharge, indirect potable reuse, and other appropriate uses, and a determination with regard to
<br />the technical and economic feasibility of serving those uses.
<br />(e) The projected use of recycled water within the supplier’s service area at the end of 5, 10, 15, and 20 years and
<br />a description of the actual use of recycled water in comparison to uses previously projected pursuant to this
<br />subdivision.
<br />(f) A description of actions, including financial incentives, which may be taken to encourage the use of recycled
<br />water, and the projected results of these actions in terms of acre-feet of recycled water used per year.
<br />(g) A plan for optimizing the use of recycled water in the supplier’s service area, including actions to facilitate the
<br />installation of dual distribution systems, to promote recirculating uses, to facilitate the increased use of treated
<br />wastewater that meets recycled water standards, and to overcome any obstacles to achieving that increased use.
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