2025 Urban Water Management Plan

Section 2 2025 Urban Water Management Plan Plan Preparation City of Pleasanton Public Draft | May 2026 2-1 EKI Environment & Water, Inc. 2 PLAN PREPARATION This section describes the basis for preparing the City’s 2025 UWMP and WSCP, the basis for reporting throughout the Plan, and related coordination and outreach conducted during the Plan’s development. 2.1 Basis for UWMP Preparation Public Water Systems (PWS) provide potable (drinking) water for human consumption. The SWRCB’s Division of Drinking Water (DDW) regulates PWSs and requires that suppliers report water use and other relevant PWS information via the electronic Annual Reports to the Drinking Water Program. Among other purposes, the State uses this information to determine whether a water supplier meets the definition of an “urban water supplier” and is subject to the requirements of the UWMP Act. In 2025, Pleasanton distributed 12,663 AFY of potable water to 22,370 accounts through its PWS (Table 2-1) and is, therefore, required to prepare a UWMP.  CWC §10617 “Urban water supplier” means a supplier, either publicly or privately owned, providing water for municipal purposes either directly or indirectly to more than 3,000 customers or supplying more than 3,000 acre-feet of water annually. An urban water supplier includes a supplier or contractor for water, regardless of the basis of right, which distributes or sells for ultimate resale to customers. This part applies only to water supplied from public water systems subject to Chapter 4 (commencing with Section 116275) of Part 12 of Division 104 of the Health and Safety Code.  CWC §10608.12 (t) “Urban retail water supplier” means a water supplier, either publicly or privately owned, that directly provides potable municipal water to more than 3,000 end users or that supplies more than 3,000 acre-feet of potable water annually at retail for municipal purposes. (w) “Urban wholesale water supplier” means a water supplier, either publicly or privately owned, that provides more than 3,000 acre-feet of water annually at wholesale for potable municipal purposes.  CWC §10620 (b) Every person that becomes an urban water supplier shall adopt an urban water management plan within one year after it has become an urban water supplier.  CWC §10621 (a) Each urban water supplier shall update its plan at least once every five years on or before July 1, in years ending in six and one, incorporating updated and new information from the five years preceding each update.  California Health and Safety Code §116275 (h) “Public Water System” means a system for the provision of water for human consumption through pipes or other constructed conveyances that has 15 or more service connections or regularly serves at least 25 individuals daily at least 60 days out of the year.