States ›New Jersey ›Gloucester County ›Grenloch

Grenloch, NJ Tap Water Quality 2026

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

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

Main Utility: Washington Township Mua PWSID: NJ0818004 Updated: 2026 Q2
⚠️

PFAS above the federal limit at 2 of 11 sampling points

Lead was not detected and no violations are open. However, PFAS exceeds the federal limit at 2 of 11 sampling points, running as high as 1.94 times the limit.

B

Grenloch earns a B for water quality

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

Lead: not detected
PFAS above the federal limit at 2 of 11 sampling points
256 violations since 2015, 0 health-based
No violations currently open
Grenloch's lead level vs. all New Jersey community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of New Jersey utilities
Population Served
458
~15927 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
256 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2026 Archived
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2026 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2024 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Archived
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
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2024 Archived
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2024 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2023 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2023 Resolved
Radium-228 MONITORING AND REPORTING — — 2022 Resolved
Radium-228 MONITORING AND REPORTING — — 2022 Resolved
Radium-228 MONITORING AND REPORTING — — 2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2022 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2022 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
1,2-DIBROMO-3-CHLOROPROPANE MONITORING AND REPORTING — 0.0002 mg/L 2021 Resolved
ETHYLENE DIBROMIDE MONITORING AND REPORTING — 0.00005 mg/L 2021 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2021 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Radium-226 MONITORING AND REPORTING — — 2021 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2021 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Radium-226 MONITORING AND REPORTING — — 2021 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2021 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2021 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2021 Resolved
Radium-226 MONITORING AND REPORTING — — 2021 Resolved
Radium-228 MONITORING AND REPORTING — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2020 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2020 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2020 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2020 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2020 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2020 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2020 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2020 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2020 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2020 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2020 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2020–2022 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2020–2022 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2020–2022 Resolved
Radium-226 MONITORING AND REPORTING — — 2020–2022 Resolved
Radium-228 MONITORING AND REPORTING — — 2020–2022 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2019 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2019 Resolved
Radium-226 MONITORING AND REPORTING — — 2019 Resolved
Radium-228 MONITORING AND REPORTING — — 2019 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2019 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2019 Resolved
Radium-226 MONITORING AND REPORTING — — 2019 Resolved
Radium-228 MONITORING AND REPORTING — — 2019 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2019 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2019 Resolved
Radium-226 MONITORING AND REPORTING — — 2019 Resolved
Radium-228 MONITORING AND REPORTING — — 2019 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2018 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2018 Resolved
Radium-226 MONITORING AND REPORTING — — 2018 Resolved
Radium-228 MONITORING AND REPORTING — — 2018 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Radium-226 MONITORING AND REPORTING — — 2017 Resolved
Radium-228 MONITORING AND REPORTING — — 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Radium-226 MONITORING AND REPORTING — — 2017 Resolved
Radium-228 MONITORING AND REPORTING — — 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Radium-226 MONITORING AND REPORTING — — 2017 Resolved
Radium-228 MONITORING AND REPORTING — — 2017 Resolved
Nitrate MONITORING AND REPORTING — 10 mg/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2017 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2017–2019 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2017–2019 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2017–2019 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2017–2019 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2017–2019 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2017–2019 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2017–2019 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2017–2019 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2017–2019 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2017–2019 Resolved
Arsenic MONITORING AND REPORTING — 0.010 mg/L 2017–2019 Resolved
Barium MONITORING AND REPORTING — 2 mg/L 2017–2019 Resolved
Cadmium MONITORING AND REPORTING — 0.005 mg/L 2017–2019 Resolved
Chromium MONITORING AND REPORTING — 0.1 mg/L 2017–2019 Resolved
CYANIDE MONITORING AND REPORTING — 0.2 mg/L 2017–2019 Resolved
Fluoride MONITORING AND REPORTING — 4.0 mg/L 2017–2019 Resolved
Mercury MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
Nickel MONITORING AND REPORTING — — 2017–2019 Resolved
Antimony, Total MONITORING AND REPORTING — 0.006 mg/L 2017–2019 Resolved
Beryllium, Total MONITORING AND REPORTING — 0.004 mg/L 2017–2019 Resolved
Thallium, Total MONITORING AND REPORTING — 0.002 mg/L 2017–2019 Resolved
Selenium MONITORING AND REPORTING — 0.05 mg/L 2017–2019 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2016 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2016 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2016 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2016 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2016 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2016 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2016 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2016 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2016 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2015 Resolved
Combined Radium (-226 and -228) MONITORING AND REPORTING — 5 pCi/L 2015 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2015 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2015 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2015 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2015 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2015 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2015 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2015 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2015 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2015 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2015 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2015 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2015 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2015 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2015 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2015 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2015 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2015 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2015 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2015 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2015 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 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

256 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 Washington Township Mua
PWSID NJ0818004
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 458
Service connections 15,927
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Grenloch tap water safe to drink? ▼
It meets most federal standards, but PFAS exceeds the federal limit at 2 of 11 sampling points. No violations are currently open.
Does Grenloch water have PFAS? ▼
Yes. PFAS exceeds the federal limit at 2 of 11 sampling points, running as high as 1.94 times the limit. Limits are enforced on a running annual average at each sampling point, not on a single sample.
Who supplies water to Grenloch? ▼
Washington Township Mua (PWSID NJ0818004), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-03-11. No significant deficiencies were recorded.

What Should Grenloch 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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