DALMATIA, PA · Northumberland County

LOWER MAHANOY TWP MUN AUTH 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): PA4490018
System type: Community Water System
Population served: 450
Service connections: 186
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Failure To Address Deficiency
Health-based
Groundwater Rule
May 16, 2025 – November 18, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 11, 2024 – January 13, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2023 – September 30, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2022 – January 15, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – January 15, 2025
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2019 – December 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
June 1, 2018 – June 30, 2018
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Monitoring, Regular
—
Simazine
October 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2007 – September 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1996 – July 31, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1996 – February 29, 1996
Resolved
Monitoring, Regular
—
Atrazine
July 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Atrazine
April 1, 1995 – June 30, 1995
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
November 1, 1992 – November 30, 1992
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1992 – November 30, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1992 – February 29, 1992
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Benzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Toluene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Styrene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Benzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Toluene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Styrene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1990 – March 31, 1990
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1988 – June 30, 1992
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1984 – June 30, 1988
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Mercury
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Fluoride
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Selenium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Cadmium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Chromium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Arsenic
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4,5-TP
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Barium
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4-D
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

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
May 16, 2025 – November 18, 2025	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
October 11, 2024 – January 13, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2022 – January 15, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2022 – January 15, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Nitrite	—	Resolved
June 1, 2018 – June 30, 2018	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
June 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Simazine	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Atrazine	—	Resolved
July 1, 1996 – July 31, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1996 – February 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – September 30, 1995	Monitoring, Regular	Atrazine	—	Resolved
April 1, 1995 – June 30, 1995	Monitoring, Regular	Atrazine	—	Resolved
November 1, 1992 – November 30, 1992	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1992 – November 30, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 1992 – February 29, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1990 – March 31, 1990	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Benzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Toluene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Styrene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Benzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Toluene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Styrene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1990 – March 31, 1990	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 1988 – June 30, 1992	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 1984 – June 30, 1988	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Mercury	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Fluoride	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Selenium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Cadmium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Chromium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Arsenic	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4,5-TP	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Barium	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4-D	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Nitrate	—	Archived

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

Enforcement actions

November 18, 2025State Public Notification received1 linked violation
November 18, 2025State Compliance achieved1 linked violation
June 26, 2025State Formal Notice of Violation issued1 linked violation
June 26, 2025State Public Notification requested1 linked violation
January 15, 2025State Public Notification received1 linked violation
January 15, 2025State Compliance achieved2 linked violations
January 15, 2025State Compliance achieved1 linked violation
January 13, 2025State Compliance achieved1 linked violation
November 8, 2023State Public Notification requested1 linked violation
November 8, 2023State Formal Notice of Violation issued1 linked violation
February 12, 2020State Violation/Reminder Notice2 linked violations
February 12, 2020State Compliance achieved2 linked violations
July 31, 2018State Violation/Reminder Notice1 linked violation
July 31, 2018State Compliance achieved1 linked violation
August 10, 2012State Violation/Reminder Notice1 linked violation
August 10, 2012State Public Notification received1 linked violation
August 10, 2012State Compliance achieved1 linked violation
July 27, 2012State Public Notification requested1 linked violation
July 27, 2012State Public Notification received1 linked violation
July 27, 2012State Violation/Reminder Notice1 linked violation
July 27, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Compliance achieved1 linked violation
February 21, 2012State Violation/Reminder Notice1 linked violation
November 21, 2011State Public Notification requested1 linked violation
November 21, 2011State Violation/Reminder Notice1 linked violation
October 27, 2011State Violation/Reminder Notice1 linked violation
February 12, 2008State Compliance achieved2 linked violations
February 12, 2008State Public Notification received2 linked violations
January 31, 2008State Public Notification requested2 linked violations
December 18, 2007State Violation/Reminder Notice2 linked violations
June 2, 2006State Compliance achieved1 linked violation
July 30, 2003State Compliance achieved1 linked violation
July 30, 2003State Public Notification received1 linked violation
April 14, 2003State Public Notification requested1 linked violation
November 8, 1995State Violation/Reminder Notice1 linked violation
May 8, 1990State Compliance Meeting conducted65 linked violations
June 23, 1989State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 12, 1989State Boil Water Ordergeneral compliance action — not tied to a specific violation on record
September 8, 1988State Violation/Reminder Notice1 linked violation
November 1, 1984State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
March 7, 1983State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Contact

LOWER MAHANOY TWP MUN AUTH

570-758-3615

DALMATIA, PA 17017