2025 Urban Water Management Plan

Section 4 2025 Urban Water Management Plan Water Use Characterization City of Pleasanton Public Draft | May 2026 4-12 EKI Environment & Water, Inc. 4.8 Coordinating Water Use Projections Pleasanton purchases wholesale water supply from Zone 7. Compliant with CWC §10631(h), Pleasanton coordinated with Zone 7 throughout the process of preparing the 2025 UWMP and provided water demand projections through 2045 to inform Zone 7’s UWMP. 4.9 Urban Water Use Objective In July 2024, California enacted the MCCWL regulation (implementing SB 606 and AB 1668) to support long-term water conservation and drought resilience. In part, this regulation requires water suppliers to calculate an annual UWUO and to implement Performance Measures for CII water users. The UWUO is a water budget-based approach to water use efficiency that is unique to each urban water supplier and reflects an aggregate of the following components: (1) residential indoor water standard, (2) residential outdoor water budget, (3) CII landscape outdoor water use standard (for landscapes with DIMs), (4) water loss standard, (5) variance, and (6) bonus. Per the MCCWL regulation, over the next 25 years, the  CWC § 10631(h) An urban water supplier that relies upon a wholesale agency for a source of water shall provide the wholesale agency with water use projections from that agency for that source of water in five-year increments to 20 years or as far as data is available.  CWC § 10609.20 (a) Each urban retail water supplier shall calculate its urban water use objective no later than January 1, 2024, and by January 1 every year thereafter. (b) The calculation shall be based on the urban retail water supplier’s water use conditions for the previous calendar or fiscal year.  CWC § 10609.22 (a) An urban retail water supplier shall calculate its actual urban water use no later than January 1, 2024, and by January 1 every year thereafter. (b) The calculation shall be based on the urban retail water supplier’s water use for the previous calendar or fiscal year.  CWC § 10609.24 (a) An urban retail water supplier shall submit a report to the department no later than January 1, 2024, and by January 1 every year thereafter. The report shall include all of the following: (1) The urban water use objective calculated pursuant to Section 10609.20 along with relevant supporting data. (2) The actual urban water use calculated pursuant to Section 10609.22 along with relevant supporting data. (3) Documentation of the implementation of the performance measures for CII water use. (4) A description of the progress made towards meeting the urban water use objective. (5) The validated water loss audit report conducted pursuant to Section 10608.34. (b) The department shall post the reports and information on its internet website. (c) The board may issue an information order or conservation order to, or impose civil liability on, an entity or individual for failure to submit a report required by this section.