NORTH WALES, PA · Montgomery County

NORTH WALES WATER 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 Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.

System facts

System ID (PWSID): PA1460048
System type: Community Water System
Population served: 72,496
Service connections: 25,877
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2025 – June 30, 2025
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
March 1, 2025 – March 31, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2022 – July 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2022 – April 30, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2021 – September 30, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2021 – February 28, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2019 – September 30, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2018 – September 30, 2018
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2017 – August 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – November 22, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
June 1, 2016 – June 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2013 – July 31, 2013
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
July 1, 2013 – July 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2006 – June 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2005 – March 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2005 – March 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2005 – December 31, 2005
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2003 – December 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2003 – December 31, 2003
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 1996 – June 30, 1996
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 1996 – June 30, 1996
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1996 – December 31, 1996
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 1995 – June 30, 1995
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Benzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Toluene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Styrene
January 1, 1994 – March 31, 1994
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Benzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 1991 – September 30, 1991
Resolved
Monitoring, Regular
—
Fluoride
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Selenium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Nitrate
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4-D
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4,5-TP
June 24, 1982 – June 23, 1985
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
March 1, 2025 – March 31, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2022 – July 31, 2022	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2022 – April 30, 2022	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2021 – September 30, 2021	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
February 1, 2021 – February 28, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2019 – September 30, 2019	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
March 1, 2019 – March 31, 2019	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2016 – November 22, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2016 – June 30, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2005 – March 31, 2005	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2005 – December 31, 2005	Monitoring, Regular	Nitrate	—	Resolved
December 1, 2003 – December 31, 2003	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2003 – December 31, 2003	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2003 – December 31, 2003	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 1996 – June 30, 1996	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
April 1, 1996 – June 30, 1996	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1996 – December 31, 1996	Monitoring, Regular	Nitrate	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 1995 – March 31, 1995	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Benzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Toluene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1994 – March 31, 1994	Monitoring, Regular	Styrene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Benzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1991 – September 30, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Fluoride	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Selenium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Nitrate	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4-D	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4,5-TP	—	Archived

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

Enforcement actions

July 28, 2025State Public Notification requested1 linked violation
July 24, 2025State Violation/Reminder Notice1 linked violation
May 21, 2025State Compliance achieved1 linked violation
April 29, 2025State Violation/Reminder Notice1 linked violation
August 29, 2022State Violation/Reminder Notice1 linked violation
August 29, 2022State Compliance achieved1 linked violation
May 24, 2022State Compliance achieved1 linked violation
May 23, 2022State Violation/Reminder Notice1 linked violation
December 9, 2021State Compliance achieved1 linked violation
November 9, 2021State Compliance achieved2 linked violations
November 9, 2021State Violation/Reminder Notice2 linked violations
November 4, 2021State Compliance achieved1 linked violation
November 4, 2021State Violation/Reminder Notice1 linked violation
September 27, 2021State Compliance achieved1 linked violation
September 23, 2021State Violation/Reminder Notice1 linked violation
August 25, 2021State Violation/Reminder Notice1 linked violation
August 25, 2021State Violation/Reminder Notice1 linked violation
July 20, 2021State Compliance achieved1 linked violation
July 1, 2021State Violation/Reminder Notice1 linked violation
June 30, 2021State Compliance achieved1 linked violation
March 22, 2021State Violation/Reminder Notice1 linked violation
November 14, 2019State Compliance achieved1 linked violation
November 12, 2019State Violation/Reminder Notice1 linked violation
May 13, 2019State Compliance achieved1 linked violation
May 1, 2019State Violation/Reminder Notice1 linked violation
November 20, 2018State Compliance achieved1 linked violation
November 7, 2018State Violation/Reminder Notice1 linked violation
August 14, 2018State Compliance achieved1 linked violation
October 13, 2017State Violation/Reminder Notice1 linked violation
June 16, 2017State Compliance achieved1 linked violation
November 22, 2016State Compliance achieved1 linked violation
September 19, 2016State Violation/Reminder Notice1 linked violation
September 19, 2016State Violation/Reminder Notice1 linked violation
August 2, 2016State Violation/Reminder Notice1 linked violation
August 2, 2016State Violation/Reminder Notice1 linked violation
November 4, 2013State Compliance achieved2 linked violations
November 4, 2013State Violation/Reminder Notice2 linked violations
September 6, 2006State Compliance achieved1 linked violation
April 28, 2006State Compliance achieved1 linked violation
August 10, 2005State Violation/Reminder Notice3 linked violations
August 10, 2005State Compliance achieved3 linked violations
January 26, 2005State Compliance achieved6 linked violations
January 20, 2005State Violation/Reminder Notice6 linked violations
November 7, 1991State Compliance achieved48 linked violations
November 4, 1991State Formal Notice of Violation issued47 linked violations
October 29, 1991State Public Notification requested51 linked violations
October 28, 1991State Violation/Reminder Notice49 linked violations
October 3, 1985State Violation/Reminder Notice1 linked violation

Contact

NORTH WALES WATER AUTHORITY

215-699-4836

NORTH WALES, PA 19454