How can I learn more about my city’s water?

Look up your water supplier to learn more about contaminants or other information.

Much of the research for this report came from the State Water Board’s Safe Drinking Water Plan for California, published in September 2021.

Many examples also came from Urban Water Management Plans. Under a 1983 law, large urban water suppliers must prepare and adopt a plan every five years to be eligible for state funding. Here are some examples: