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Monte Vista Water District provides retail and wholesale water service to 130,000 residents in the communities of Montclair, Chino Hills, and portions of Chino.

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Testing water pHEmployee testing the pH levels of your drinking water

Public Documents

State Drought Self‑Certification

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Individual and Aggregate Self-Certification Documentation

The following documents were submitted to the State Water Resources Control Board on June 22, 2016 as part of the District's self-certification of supply reliability under California Code of Regulations, title 23, section 864.5.

The District and the cities of Chino, Chino Hills, Ontario, and Upland 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.

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 District's individual and aggregate self-certification: