WILLIAMSTOWN, NJ · Gloucester County

MONROE MUNICIPAL UTILITIES AUTHORITY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace New Jersey’s official records. Always confirm current status with New Jersey before making decisions based on this information.

System facts

System ID (PWSID): NJ0811002
System type: Community Water System
Population served: 26,179
Service connections: 9,696
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2025 – June 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2025 – June 30, 2025
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2022 – February 10, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – April 23, 2021
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 2020 – November 16, 2020
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2020 – November 16, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
June 1, 2020 – August 17, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
June 1, 2020 – August 17, 2020
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2019 – August 15, 2019
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2018 – October 24, 2018
Resolved
Monitoring, Regular
—
Mercury
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Mercury
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Mercury
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Mercury
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Mercury
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Mercury
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Mercury
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Mercury
July 1, 2015 – August 12, 2015
Resolved
Monitoring, Regular
—
Mercury
July 1, 2015 – September 9, 2015
Resolved
Monitoring, Regular
—
Mercury
July 1, 2015 – August 12, 2015
Resolved
Monitoring, Regular
—
Mercury
July 1, 2015 – July 8, 2015
Resolved
Monitoring, Regular
—
Benzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Toluene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2009 – March 31, 2009
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 1997 – December 31, 1997
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 1997 – June 30, 1997
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1996 – September 30, 1996
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
June 1, 2025 – June 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2025 – June 30, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2022 – February 10, 2022	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
December 30, 2020 – April 23, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2020 – November 16, 2020	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
October 1, 2020 – November 16, 2020	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
June 1, 2020 – August 17, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2020 – August 17, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 1, 2019 – August 15, 2019	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2018 – October 24, 2018	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Mercury	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Mercury	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Mercury	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Mercury	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Mercury	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Mercury	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Mercury	—	Resolved
July 1, 2015 – August 12, 2015	Monitoring, Regular	Mercury	—	Resolved
July 1, 2015 – September 9, 2015	Monitoring, Regular	Mercury	—	Resolved
July 1, 2015 – August 12, 2015	Monitoring, Regular	Mercury	—	Resolved
July 1, 2015 – July 8, 2015	Monitoring, Regular	Mercury	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Benzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Toluene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 1998 – December 31, 1998	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 1997 – December 31, 1997	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 1997 – June 30, 1997	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 1997 – June 30, 1997	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 1996 – September 30, 1996	Monitoring, Regular	Vinyl chloride	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

June 25, 2021State Public Notification received9 linked violations
January 23, 2019State Formal Notice of Violation issued2 linked violations
July 14, 2016State Public Notification requested6 linked violations
July 6, 2016State Compliance achieved7 linked violations
October 20, 2015State Formal Notice of Violation issued4 linked violations
May 20, 2015State Compliance achievedgeneral compliance action — not tied to a specific violation on record
April 23, 2015State Formal Notice of Violation issued3 linked violations
June 30, 2011State Public Notification received10 linked violations
November 17, 2010State Public Notification requested89 linked violations
September 7, 2006State Compliance achieved27 linked violations
June 8, 2006State Compliance achieved29 linked violations
April 19, 2005State Compliance achieved26 linked violations
November 19, 1996State Compliance achieved475 linked violations

Contact

COSSABONE, FRANK

856-226-3628

WILLIAMSTOWN, NJ 08094