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Jamesburg, NJ Tap Water Quality 2026

Water quality report for Jamesburg, NJ — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Jamesburg's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Monroe Twp Utility Department PWSID: NJ1213002 Updated: 2026 Q2
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PFAS above the federal limit at 1 of 4 sampling points

Lead is 1.69 ppb, 11% of the action level and no violations are open. However, PFAS exceeds the federal limit at 1 of 4 sampling points, running as high as 2.61 times the limit.

C

Jamesburg earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.69 ppb — 11% of the federal action level
PFAS above the federal limit at 1 of 4 sampling points
21 violations since 2015, 0 health-based
No violations currently open
Jamesburg's lead level vs. all New Jersey community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.69 ppb — 11% of the federal action level
✓ Lower lead than 69% of New Jersey utilities
Population Served
71
~22379 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
21 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
11% of EPA action level
1.69 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.69 ppb, 11% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2024 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2024 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2024 Resolved
Radium-226 MONITORING AND REPORTING — — 2024 Resolved
Radium-228 MONITORING AND REPORTING — — 2024 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2024 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2024 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2024 Resolved
Radium-226 MONITORING AND REPORTING — — 2024 Resolved
Radium-228 MONITORING AND REPORTING — — 2024 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2024 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2024 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2024 Resolved
Radium-226 MONITORING AND REPORTING — — 2024 Resolved
Radium-228 MONITORING AND REPORTING — — 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2024 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2024 Archived
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
E. COLI MONITORING AND REPORTING — 0 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

21 violations are on record since 2015, of which 0 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Monroe Twp Utility Department
PWSID NJ1213002
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 71
Service connections 22,379
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Jamesburg tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 1 of 4 sampling points. No violations are currently open. Lead is 1.69 ppb, 11% of the action level.
Does Jamesburg water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 1 of 4 sampling points, running as high as 2.61 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Jamesburg? ▼
Monroe Twp Utility Department (PWSID NJ1213002). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2024-03-14. No significant deficiencies were recorded.

What Should Jamesburg Residents Do?

1
Consider a reverse-osmosis filter
Reverse osmosis removes more than 95% of PFAS. Standard carbon pitchers do not.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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