Water Quality in Cincinnati, OH (45226)

EPA violation data for public water systems serving ZIP code 45226.

No Health-Based Violations

None of the 5 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There is1 monitoring/reporting violation (missed testing deadlines), all resolved.

Better than 29% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

5,796

Population

5

Water Systems

1

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (5)

Cincinnati Public Water System

Surface water 750,200 people served
0 violations
Lead tested: 2 ppb (limit: 15 ppb)

Cincinnati, City Of-Miller

Surface water 686,400 people served
0 violations

Cincinnati, City Of-Bolton Plt

Groundwater 93,600 people served
0 violations

Four Seasons Marina

All resolved
Groundwater 615 people served
1 violation (5yr) · All resolved

Kellogg Marina

Groundwater 30 people served
0 violations

Contaminants Found

Revised Total Coliform RuleMonitoring

Missed testing deadlines — not a detection of bacteria.

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2 ppb measured Action level: 15 ppb

Sampled: Jul 2025

How Does This Compare?

Cincinnati (45226) has more violations than 29% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 1, most of which are monitoring/reporting issues.

Fewer violations 29th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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