Rowland Heights, California: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 1 community water system serving 56,100+ residents. See violations, PFAS results, lead test results, and safety grades — free.
Is Rowland Heights Tap Water Safe to Drink?
Based on the latest EPA data, Rowland Heights tap water meets all federal drinking water standards. All 1 tested system has received a safety grade of A or B, with no active health-based violations. 1 system has been tested for PFAS (forever chemicals).
Rowland Heights Water Quality Overview
Rowland Heights, California is served by 1 community water system providing water to approximately 56,100 residents. The system draws from surface water purchased sources. Rowland Heights water systems have no recorded health-based violations.
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All 1 water system in Rowland Heights
Looking for water quality data across the whole state? See our full California tap water safety report covering California’s EPA-regulated water systems.
Rowland Heights Drinking Water: Frequently Asked Questions
Is Rowland Heights, California tap water safe to drink?
Based on the latest EPA data, Rowland Heights tap water meets all federal drinking water standards. All 1 tested system has received a safety grade of A or B, with no active health-based violations. 1 system has been tested for PFAS (forever chemicals).
How many water utilities serve Rowland Heights, California?
1 community water system serves Rowland Heights, California, providing water to approximately 56,100 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Rowland Heights tap water have lead?
Lead in drinking water typically enters from old pipes and fixtures inside homes and buildings, not from the treatment plant. The EPA requires water systems to monitor for lead under the Lead and Copper Rule. Click any water system above to see its most recent 90th-percentile lead test results. Homes built before 1986 are most likely to have lead plumbing components.
What contaminants have been found in Rowland Heights drinking water?
EPA violation records for Rowland Heights water systems are listed on each utility's report page. Common regulated contaminants include disinfection byproducts (TTHMs, HAA5), coliform bacteria, nitrates, and lead. Click any utility above to see its full violation history going back 10 years.
How do I find out which water company serves my address in Rowland Heights?
Enter your Rowland Heights ZIP code in the search box at the top of this page. ClearWater will identify the specific water system serving your area and show you its EPA violation history, lead test results, and an overall safety grade. You can also check your water bill or your utility's annual Consumer Confidence Report (CCR).