Des Peres, Missouri: Is the Tap Water Safe to Drink?
2026 EPA water quality data for 32 community water systems serving 14,282+ residents. See violations, PFAS results, lead test results, and safety grades — free.
EPA data last updated: 2026-06-23
Is Des Peres Tap Water Safe to Drink?
Des Peres has 32 community water systems. 31 of 32 graded systems meet all EPA standards (grade A or B), while 1 has recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.
Des Peres Water Quality Overview
Des Peres, Missouri is served by 32 community water systems providing water to approximately 14,282 residents. These systems draw from groundwater (30), groundwater purchased (1), surface water purchased (1) sources. Des Peres water systems have recorded 192 health-based violations in their history, though none are currently active. Including monitoring and reporting violations, there are 655 total violations on record.
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All 32 water systems in Des Peres
Looking for water quality data across the whole state? See our full Missouri tap water safety report covering Missouri’s EPA-regulated water systems.
Des Peres Drinking Water: Frequently Asked Questions
Is Des Peres, Missouri tap water safe to drink?
Des Peres has 32 community water systems. 31 of 32 graded systems meet all EPA standards (grade A or B), while 1 has recorded violations. No active health-based violations are currently open. Check individual system reports below for specifics.
How many water utilities serve Des Peres, Missouri?
32 community water systems serve Des Peres, Missouri, providing water to approximately 14,282 people. Different neighborhoods may be served by different utilities. Enter your ZIP code at the top to find your specific provider.
Does Des Peres 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 Des Peres drinking water?
EPA violation records for Des Peres 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 Des Peres?
Enter your Des Peres 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).