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WATER QUALITY REPORT

Cincinnati, OH Tap Water Quality

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

⚠️
MONITOR
Based on EPA violations and contaminant profile
KNOWN WATER ISSUES -- CINCINNATI, OH
Ohio River contamination
PFAS
Disinfection byproducts
WHAT YOU SHOULD KNOW
1

Cincinnati draws from the Ohio River -- receiving industrial, pharmaceutical, and agricultural runoff.

2

PFAS from upstream industrial sources has been detected in Cincinnati's water supply.

3

GCWW is known for treating water well but source water quality remains a concern.

4

Ohio's industrial legacy means PFAS is a statewide issue -- certified RO is recommended.

WATER SYSTEM -- EPA SDWIS
System Name
Greater Cincinnati Water Works
EPA PWSID
OH1530045
Population Served
310K
State
OH
COMMON QUESTIONS
Is Cincinnati tap water safe to drink?

Cincinnati 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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