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WATER QUALITY REPORT

St. Louis, MO Tap Water Quality

What EPA data, PFAS monitoring, and independent health research reveals about St. Louis's drinking water -- and what you can do about it.

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HIGH CONCERN
Based on EPA violations and contaminant profile
KNOWN WATER ISSUES -- ST. LOUIS, MO
âš Mississippi River contamination
âš Lead pipes
âš Industrial legacy
WHAT YOU SHOULD KNOW
1

St. Louis draws from the Missouri and Mississippi Rivers -- both receive heavy industrial discharge.

2

St. Louis has significant lead service line infrastructure from the 19th and early 20th century.

3

Missouri has a legacy of industrial pollution including Superfund sites near the water supply.

4

Lead and DBP filtration are both priorities for St. Louis residents.

WATER SYSTEM -- EPA SDWIS
System Name
Missouri American Water -- St. Louis
EPA PWSID
MO0690002
Population Served
300K
State
MO
COMMON QUESTIONS
Is St. Louis tap water safe to drink?

St. Louis water meets EPA legal standards but meeting standards is not the same as being free of contaminants. EPA limits are set based on feasibility, not always on what is safest for health. Enter your ZIP above to see the full violation history and PFAS data for your specific water system.

Do I need a water filter?

Even compliant water can contain contaminants at levels above what independent health scientists consider safe -- particularly for PFAS, lead, and chromium-6. An EPA-certified RO system removes 95-99% of all detected contaminants and costs $0.10-$0.25 per gallon, compared to $1-$3 for bottled water.

What's the best filter for this area?

For most US cities, a reverse osmosis system under the sink is the gold standard -- it removes lead, PFAS, arsenic, nitrates, fluoride, and virtually everything else. For renters, a Waterdrop D4 countertop RO requires zero installation. Enter your ZIP above to get personalized recommendations based on your actual water report.

Check your specific address

City-wide data is just the start. Enter your ZIP to see your exact water system's EPA report, PFAS levels, and violation history.

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