Water Quality

Water Standards

Individual water companies do not decide what constitutes "safe" water. All public water supplies in California must meet stringent quality standards established by both federal and state regulators. In California, standards are enforced by the State Water Resources Control Board Division of Drinking Water (DDW).

On the federal level, the Safe Drinking Water Act of 1974 and its amendments regulate the quality of our water supply. The United States Environmental Protection Agency (USEPA) has set standards and monitoring requirements for water utilities.

To view our current and past Water Quality Reports, please click the links below:

*Please note that the current Water Quality Report is for the year prior to the current calendar year, and is completed and posted by July 1 of each year. To complete the Water Quality Report, the calendar year must be over, and tests and results must be compiled, typically a six month process.


CVWD tests for chemicals that could be present in our drinking water supply. CVWD completes bacteriological samples from sampling stations within our district boundaries. We also run miscellaneous tests throughout the year to monitor water quality conditions within our own distribution system to ensure that we provide the highest quality water to all of our customers.


Most of our customers are not aware of how much regulatory compliance costs. However, it is worth the investment to ensure that you receive good quality water at all times.