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Section 4 2025 Urban Water Management Plan <br />Water Use Characterization City of Pleasanton <br /> Public Draft | May 2026 <br /> 4-1 EKI Environment & Water, Inc. <br />4 WATER USE CHARACTERIZATION <br /> <br />This section describes and quantifies Pleasanton’s historical, current, and projected water uses through <br />2045. <br />4.1 Non-Potable Versus Potable Water Use <br />Potable and non-potable water uses are accounted for separately in this section. Potable uses are served <br />by Pleasanton’s potable water delivery system. Potable water deliveries comply with Title 22 Drinking <br />Water Standards. Non-potable water uses may include recycled and untreated raw water deliveries that <br />do not meet potable drinking water standards. Uses of potable versus non-potable water are clearly <br />distinguished in the tables included in this section of the Plan. <br /> <br /> CWC §10635 <br />(a) Every urban water Supplier shall include, as part of its urban water management plan, an assessment of the <br />reliability of its water service to its customers during normal, dry, and multiple dry water years. This water <br />supply and demand assessment shall compare the total water supply sources available to the water supplier <br />with the long-term total projected water use over the next 20 years, in five-year increments, for a normal water <br />year, a single dry water year, and a drought lasting five consecutive water years. The water service reliability <br />assessment shall be based upon the information compiled pursuant to Section 10631, including available data <br />from state, regional, or local agency population projections within the service area of the urban water supplier. <br /> CWC §10631 <br />(d)(1) For an urban retail water supplier, quantify, to the extent records are available, past and current water use, <br />over the same five-year increments described in subdivision (a), and projected water use, based upon information <br />developed pursuant to subdivision (a), identifying the uses among water use sectors, including, but not necessarily <br />limited to, all of the following… <br />(d)(2) The water use projections shall be in the same five-year increments described in subdivision (a). <br />(d)(4)(A) Water use projections, where available, shall display and account for the water savings estimated to <br />result from adopted codes, standards, ordinances, or transportation and land use plans identified by the urban <br />water supplier, as applicable to the service area. <br />(d)(4)(B) To the extent that an urban water supplier reports the information described in subparagraph (A), an <br />urban water supplier shall do both of the following: (i) Provide citations of the various codes, standards, <br />ordinances, or transportation and land use plans utilized in making the projections. (ii) Indicate the extent that <br />the water use projections consider savings from codes, standards, ordinances, or transportation and land use <br />plans. Water use projections that do not account for these water savings shall be noted of that fact.