Rancho Cordova Tap Water Quality: Is It Safe to Drink? (2026 Report)

Rancho Cordova, California tap water receives a grade of A (87/100), which is considered excellent. Out of 69 contaminants tested, none exceed EPA maximum contaminant levels (MCLs) and 1 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.

Of the 69 contaminants tested in Rancho Cordova's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.

Yes, Rancho Cordova has 36 EPA violation(s) on record, with the most recent in 2014. Violation types include MCL, MR, Other. 12 of these are health-based violations, which are the most serious category.

Rancho Cordova water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.

Rancho Cordova's drinking water is sourced from purchased surface water and supplied by GOLDEN STATE WATER COMPANY - BAY POINT and 6 other water system(s). The system serves approximately 132,854 people. Surface water sources include rivers, lakes, and reservoirs.

Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Rancho Cordova's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.

Rancho Cordova's water quality score of 87/100 earns a grade of A, which is considered excellent. This places Rancho Cordova among the better-performing water systems in California. Visit our California state page to see how all cities in the state compare.

If you have concerns about Rancho Cordova's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (GOLDEN STATE WATER COMPANY - BAY POINT) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.