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The Utilities Department is committed to protecting the health and welfare of the community by providing safe, efficient and economical production, transmission and distribution of the City's domestic water supply and uninterrupted wastewater collection services with an emphasis on good customer service, sustainability and environmental stewardship.

Utility Billing
Phone: (909) 395-2050


Individual and Aggregate Self-Certification Documentation

The following documents were submitted to State Water Resources Control Board on June 22, 2016 as part of the City’s self-certification of supply reliability under California Code of Regulations, title 23, section 864.5. The Cities of Chino, Chino Hills, Ontario, Upland and Monte Vista Water District submitted an aggregated conservation standard as member agencies of the Water Facilities Authority. The submitted documents linked below demonstrate surplus available supplies to meet projected demands over the next three years under continued drought conditions. (DOWNLOAD BELOW)

  • Worksheet 1: Total Available Water Supply for Individual Water Supplier
  • Worksheet 2: Calculation for Aggregated Self-Certification Conservation Standard
  • Supporting Analysis and Calculations
  • Signed Certification Form
  • Signed Aggregate Certification Letter Agreement


Links to Wholesale Water Supply Information

The following are links to wholesale water supply information posted by regional wholesale agencies which provide support for the City’s individual and aggregate self-certification:


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