2025 Urban Water Management Plan

Section 6 2025 Urban Water Management Plan Water Supply Characterization City of Pleasanton Public Draft | May 2026 6-22 EKI Environment & Water, Inc. from San Francisco Bay RWQCB General Order 96-011 to SWRCB General Order 2016. The City currently permits the following recycled water uses: • Landscape irrigation to designated irrigation meters • Construction water, dust control, and surface washing • Dual plumbing In 2025, the City had a total of 98 permitted recycled water irrigation sites, including one dual plumbing site, and one permitted temporary hydrant service approved for construction use (dust control and surface washing). No permits have been issued that include impoundments. In 2025, these customers used a combined total of 1,073 AF of recycled water combined, primarily for landscape irrigation (with about 0.8 AF used for dual plumbing, and 0.1 AF for construction dust control). Table 6-5 summarizes the amount of recycled water used in 2025 and projected for future use for various beneficial uses. In accordance with DERWA’s Resolution No. 19-3, the City does not currently have plans to substantially expand its recycled water system. The City expects to connect seven irrigation customers located along the existing recycled water distribution system by 2045. These new customers are projected to increase recycled water demands to 1,340 AFY. Pleasanton projects that 100 AFY of the total demand will continue to be supplied by the City of Livermore and DERWA will supply the remaining 1,240 AFY. Pleasanton’s 2.7 MGD ownership of the treatment capacity at DSRSD’s RWTF is expected to be sufficient to meet projected annual demands. The actual and projected recycled water uses do not include system losses. Table 6-6 compares the City’s 2025 recycled water use as projected in the 2020 UWMP to actual use measured in 2025. The City’s recycled water use in 2025 was less than the level projected in the 2020 UWMP due to DERWA’s currently limited recycled water supply and the moratorium on new connections. As such, beyond the seven irrigation customers along the distribution system, Pleasanton does not have plans to expand its recycled water distribution system at this time, which has reduced the City’s projected future recycled water demands compared to the projections shown in the 2020 UWMP.