Water Quality in CINCINNATI, OH (45241)

EPA violation data for public water systems serving ZIP code 45241.

186

Total Violations

8

Health-Based

178

Monitoring / Reporting

181

Resolved

What does this mean?

181 of 186 violations have been resolved. 8 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 178 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 16 Population served: 6,700

Violations Detail (186 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Public NoticeMonitoringN/AN/ASep 13, 2025ActiveN/A
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-BasedN/AN/ASep 3, 2025ResolvedN/A
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-BasedN/AN/ASep 3, 2025ResolvedN/A
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-BasedN/AN/ASep 3, 2025ResolvedN/A
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-BasedN/AN/ASep 3, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AOct 6, 2024ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AOct 6, 2024ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AOct 6, 2024ActiveN/A

Lead & Copper Levels

Violation Timeline

2025(7)

Public Notice

75

Sep 13Active

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 3Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 3Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 3Resolved

Stage 1 Disinfectants and Disinfection Byproducts Rule

12

Sep 3Resolved

Revised Total Coliform Rule

3B

Jun 30Resolved

Revised Total Coliform Rule

3B

Jun 30Resolved

2024(24)

Consumer Confidence Rule

72

Oct 6Resolved

Consumer Confidence Rule

72

Oct 6Resolved

Consumer Confidence Rule

72

Oct 6Active

Consumer Confidence Rule

72

Oct 6Active

Radium-226

03

Sep 30Resolved

Radium-226

03

Sep 30Resolved

Radium-226

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Radium-226

03

Sep 30Resolved

Radium-226

03

Sep 30Resolved

Radium-226

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Radium-228

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Gross Alpha, Excl. Radon and U

03

Sep 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

How Does This Compare?

CINCINNATI (45241) has 186 recorded violations, including 8 health-based. 5 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Nearby ZIP Codes

Check Another ZIP Code