Water Quality in MADISON, NJ (07940)

EPA violation data for public water systems serving ZIP code 07940.

118

Total Violations

0

Health-Based

118

Monitoring / Reporting

112

Resolved

What does this mean?

112 of 118 violations have been resolved. None of these are health-based violations — no contaminant levels exceeded federal safety limits. The remaining 118 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: 9 Population served: 19,626

Violations Detail (118 total)

ContaminantCategoryMCL LimitMeasuredDateStatusHealth Effects
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ActiveN/A
TTHMMonitoringN/AN/AJun 30, 2025ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/AJun 30, 2025ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Consumer Confidence RuleMonitoringN/AN/AJun 30, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJan 10, 2025ResolvedN/A
Revised Total Coliform RuleMonitoringN/AN/AJan 10, 2025ResolvedN/A
TTHMMonitoringN/AN/ADec 31, 2024ResolvedN/A
TTHMMonitoringN/AN/ADec 31, 2024ResolvedN/A
Total Haloacetic Acids (HAA5)MonitoringN/AN/ADec 31, 2024ResolvedN/A

Lead & Copper Levels

Violation Timeline

2025(7)

Consumer Confidence Rule

71

Jun 30Active

TTHM

27

Jun 30Resolved

Total Haloacetic Acids (HAA5)

27

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Consumer Confidence Rule

71

Jun 30Resolved

Revised Total Coliform Rule

4B

Jan 10Resolved

Revised Total Coliform Rule

4B

Jan 10Resolved

2024(9)

TTHM

27

Dec 31Resolved

TTHM

27

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

Total Haloacetic Acids (HAA5)

27

Dec 31Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

Revised Total Coliform Rule

3A

Sep 30Resolved

E. COLI

34

Aug 1Active

E. COLI

34

Aug 1Active

Public Notice

75

Jan 10Active

How Does This Compare?

MADISON (07940) has 118 recorded violations, none of which are health-based. 6 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

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

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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