MERCER, PA · Mercer County

WILLOW BEND MHP Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of July 25, 2024. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Mercer County, PA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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): PA6430047
System type: Community Water System
Population served: 17
Service connections: 15
Ownership: privately owned
Water source: groundwater (wells)

WILLOW BEND MHP is one of 3,064 community water systems in Pennsylvania in the 500 or fewer people size category, formerly serving 17 people from groundwater.

EPA's federal records list this system as inactive in 2024; the record below is historical.

As of August 1, 2026, its federal record holds 34 entries between 1982 and 2024, all of which EPA lists as closed.

Of the 34, 24 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, synthetic organic chemicals, and the Consumer Confidence Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 13, 2024 – July 5, 2024
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
May 1, 2024 – May 31, 2024
Resolved
Monitoring, Regular
—
Combined Uranium
October 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2022 – September 30, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
May 1, 2016 – May 31, 2016
Resolved
Monitoring, Regular
—
Styrene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Toluene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2016 – December 31, 2016
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
October 1, 2014 – October 31, 2014
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 1, 2014 – December 2, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2009 – October 16, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – August 8, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2006 – April 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2006 – June 30, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2006 – February 28, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – August 8, 2007
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2003 – March 9, 2004
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – February 4, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
LASSO
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4-D
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
2,4,5-TP
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 13, 2024 – July 5, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
May 1, 2024 – May 31, 2024	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
October 1, 2022 – December 31, 2022	Monitoring, Regular	Combined Uranium	—	Resolved
September 1, 2022 – September 30, 2022	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
May 1, 2016 – May 31, 2016	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Styrene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Toluene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2016 – December 31, 2016	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2014 – October 31, 2014	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
October 1, 2014 – December 2, 2014	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2009 – October 16, 2009	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2006 – August 8, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2006 – April 30, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2006 – June 30, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
February 1, 2006 – February 28, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – August 8, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2003 – March 9, 2004	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2003 – February 4, 2004	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	LASSO	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4-D	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4,5-TP	—	Archived

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

Enforcement actions

July 29, 2024State Formal Notice of Violation issued1 linked violation
July 29, 2024State Compliance achieved1 linked violation
July 29, 2024State Public Notification received1 linked violation
July 29, 2024State Public Notification requested1 linked violation
July 5, 2024State Violation/Reminder Notice1 linked violation
July 5, 2024State Compliance achieved1 linked violation
April 13, 2023State Compliance achieved1 linked violation
January 31, 2023State Violation/Reminder Notice1 linked violation
November 8, 2022State Compliance achieved1 linked violation
November 8, 2022State Violation/Reminder Notice1 linked violation
February 2, 2017State Compliance achieved20 linked violations
February 2, 2017State Violation/Reminder Notice20 linked violations
July 22, 2016State Compliance achieved1 linked violation
July 22, 2016State Violation/Reminder Notice1 linked violation
February 18, 2015State Public Notification received1 linked violation
December 2, 2014State Formal Notice of Violation issued2 linked violations
December 2, 2014State Public Notification requested1 linked violation
December 2, 2014State Compliance achieved2 linked violations
October 16, 2009State Compliance achieved1 linked violation
October 16, 2009State Violation/Reminder Notice1 linked violation
August 8, 2007State Compliance achieved2 linked violations
September 25, 2006State Violation/Reminder Notice1 linked violation
June 30, 2006State Violation/Reminder Notice2 linked violations
June 30, 2006State Compliance achieved2 linked violations
May 11, 2006State Formal Notice of Violation issued2 linked violations
May 11, 2006State Public Notification requested2 linked violations
May 11, 2006State Public Notification received2 linked violations
May 11, 2006State Compliance achieved2 linked violations
September 29, 2005State Formal Notice of Violation issued1 linked violation
September 29, 2005State Formal Notice of Violation issued1 linked violation
March 9, 2004State Violation/Reminder Notice1 linked violation
March 9, 2004State Consent Decree/Judgement1 linked violation
March 9, 2004State Compliance achieved1 linked violation
February 4, 2004State Compliance achieved1 linked violation
February 4, 2004State Consent Decree/Judgement1 linked violation
February 4, 2004State Violation/Reminder Notice1 linked violation
May 15, 2003State Compliance achieved2 linked violations
May 15, 2003State Public Notification received2 linked violations
March 14, 2003State Public Notification requested2 linked violations
March 14, 2003State Formal Notice of Violation issued2 linked violations
March 7, 2003State Public Notification requested2 linked violations
March 7, 2003State Formal Notice of Violation issued2 linked violations
October 31, 1991State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 31, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 30, 1991State Site Visit for enforcement purposesgeneral compliance action — not tied to a specific violation on record
September 26, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 17, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 17, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 18, 1986State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 17, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 19, 1981State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Last known contact on file (system is inactive)

WILLOW BEND MHP

724-269-9442

MERCER, PA 16137