Water Quality in DELPHOS, OH (45833)

EPA violation data for public water systems serving ZIP code 45833.

145

Total Violations

5

Health-Based

140

Monitoring / Reporting

142

Resolved

What does this mean?

142 of 145 violations have been resolved. 5 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 140 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: 20 Population served: 9,518

Violations Detail (145 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
E. COLIMonitoring0N/AJul 22, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AJul 22, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AJul 22, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
E. COLIMonitoring0N/AJul 22, 2025ResolvedSevere gastrointestinal illness; may be fatal in vulnerable populations
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/ADec 19, 2024ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/ADec 19, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ANov 30, 2024ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/ANov 30, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(6)

E. COLI

34

Jul 22Resolved

E. COLI

34

Jul 22Resolved

E. COLI

34

Jul 22Resolved

E. COLI

34

Jul 22Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

2024(8)

Consumer Confidence Rule

72

Dec 19Resolved

Consumer Confidence Rule

72

Dec 19Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Revised Total Coliform Rule

3A

Nov 30Resolved

Public Notice

75

May 14Resolved

Public Notice

75

May 14Resolved

How Does This Compare?

DELPHOS (45833) has 145 recorded violations, including 5 health-based. 3 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.

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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

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