Is WALNUT GROVE MHC required to publish a Consumer Confidence Report?

Yes. WALNUT GROVE MHC is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is WALNUT GROVE MHC’s next Consumer Confidence Report due?

WALNUT GROVE MHC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

FARMINGTON HILLS, PA · Adams County

WALNUT GROVE MHC Water System

Consumer Confidence Report status

WALNUT GROVE MHC must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for WALNUT GROVE MHC.

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): PA7010053
System type: Community Water System
Population served: 425
Service connections: 167
Ownership: privately owned
Water source: groundwater (wells)

WALNUT GROVE MHC is one of 3,064 community water systems in Pennsylvania in the 500 or fewer people size category, serving 425 people from groundwater.

As of August 1, 2026, its federal record holds 35 entries between 1998 and 2026, all of which EPA lists as closed.

Of the 35, 31 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 inorganic chemicals, volatile organic chemicals, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2026 – January 31, 2026
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
November 1, 2020 – November 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2020 – November 30, 2020
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2015 – May 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2015 – June 30, 2015
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 11, 2009 – November 25, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2009 – December 31, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – September 9, 2008
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2004 – February 11, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – March 14, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2004 – June 30, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Chromium
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Mercury
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Nickel
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Selenium
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2003 – December 31, 2003
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
Benzene
January 1, 1998 – December 31, 1998
Resolved
Monitoring, Regular
—
Toluene
January 1, 1998 – December 31, 1998
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1998 – March 29, 1999
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026 – January 31, 2026	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 1, 2015 – May 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 11, 2009 – November 25, 2009	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2008 – September 9, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 1, 2005 – September 30, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2004 – February 11, 2005	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – March 14, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Barium	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Chromium	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Mercury	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Nickel	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Selenium	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2003 – December 31, 2003	Monitoring, Regular	Thallium, Total	—	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Benzene	—	Resolved
January 1, 1998 – December 31, 1998	Monitoring, Regular	Toluene	—	Resolved
January 1, 1998 – March 29, 1999	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

April 3, 2026State Compliance achieved1 linked violation
April 3, 2026State Public Notification received1 linked violation
March 11, 2026State Public Notification requested1 linked violation
March 11, 2026State Formal Notice of Violation issued1 linked violation
February 13, 2023State Compliance achieved1 linked violation
February 9, 2023State Formal Notice of Violation issued1 linked violation
January 14, 2021State Compliance achieved2 linked violations
January 6, 2021State Violation/Reminder Notice2 linked violations
June 30, 2015State Compliance achieved2 linked violations
June 30, 2015State Violation/Reminder Notice2 linked violations
October 17, 2013State Compliance achieved1 linked violation
February 25, 2010State Compliance achieved1 linked violation
February 2, 2010State Compliance achieved1 linked violation
February 2, 2010State Violation/Reminder Notice1 linked violation
November 25, 2009State Compliance achieved1 linked violation
November 25, 2009State Violation/Reminder Notice1 linked violation
November 18, 2008State Compliance achieved1 linked violation
September 9, 2008State Compliance achieved1 linked violation
August 28, 2008State Violation/Reminder Notice1 linked violation
February 15, 2006State Compliance achieved1 linked violation
February 15, 2006State Consent Decree/Judgement1 linked violation
February 10, 2006State Violation/Reminder Notice1 linked violation
March 14, 2005State Compliance achieved1 linked violation
March 14, 2005State Consent Decree/Judgement1 linked violation
February 11, 2005State Consent Decree/Judgement1 linked violation
February 11, 2005State Compliance achieved1 linked violation
February 11, 2005State Formal Notice of Violation issued1 linked violation
November 4, 2004State Formal Notice of Violation issued1 linked violation
November 4, 2004State Formal Notice of Violation issued1 linked violation
October 29, 2004State Compliance achieved1 linked violation
October 29, 2004State Consent Decree/Judgement1 linked violation
October 21, 2004State Violation/Reminder Notice1 linked violation
May 14, 2004State Compliance achieved12 linked violations
March 11, 2004State Violation/Reminder Notice12 linked violations

Common questions

Is WALNUT GROVE MHC required to publish a Consumer Confidence Report?: Yes. WALNUT GROVE MHC is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is WALNUT GROVE MHC’s next Consumer Confidence Report due?: WALNUT GROVE MHC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WALNUT GROVE MHC have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for WALNUT GROVE MHC.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

WALNUT GROVE MHC

717-337-0413

FARMINGTON HILLS, MI 48334