UNIONVILLE, PA · Chester County

DOE RUN MOBILE HOME PARK Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): PA1150224
System type: Community Water System
Population served: 29
Service connections: 16
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
November 1, 2025 – November 30, 2025
Archived
Monitoring, Regular
—
Radium-226
October 1, 2025 – December 31, 2025
Resolved
Monitoring, Regular
—
Combined Uranium
October 1, 2025 – December 31, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2025 – December 31, 2025
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
August 1, 2025 – August 31, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2025 – August 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2025 – September 30, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2025 – September 30, 2025
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Xylenes, Total
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Styrene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Benzene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2025 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2024 – July 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2023 – November 30, 2023
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
November 18, 2022 – February 8, 2023
Resolved
Failure to Consult with State
—
Groundwater Rule
August 20, 2022 – February 8, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 13, 2022 – November 23, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
July 1, 2022 – July 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2022 – September 30, 2022
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 13, 2022 – December 12, 2022
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
June 1, 2022 – June 30, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2021 – September 30, 2021
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
June 1, 2021 – June 30, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
March 1, 2020 – March 31, 2020
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2019 – March 31, 2019
Resolved
Monitoring, Regular
—
Styrene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Toluene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Benzene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2019 – December 31, 2019
Resolved
Monitoring, Regular
—
Nitrite
October 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Combined Uranium
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2016 – December 31, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2016 – September 30, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2016 – December 14, 2016
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2016 – December 14, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
2,4,5-TP
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Chlordane
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Pentachlorophenol
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
2,4-D
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Heptachlor epoxide
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Heptachlor
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
2,3,7,8-TCDD
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
LASSO
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Carbofuran
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Dinoseb
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Picloram
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
OXAMYL
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Endothall
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Methoxychlor
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
BHC-GAMMA
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Endrin
April 1, 2016 – June 30, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2016 – April 30, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
March 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Endrin
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
LASSO
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Simazine
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Diquat
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Nitrite
April 1, 2015 – June 30, 2015
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
February 1, 2014 – February 28, 2014
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
December 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
Nitrite
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2013 – April 30, 2013
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2013 – June 30, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – December 12, 2012
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Nitrite
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2010 – November 5, 2010
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 10, 2008 – September 22, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved

Unaddressed no corrective action on record yetArchived 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
January 1, 2026	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
November 1, 2025 – November 30, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Radium-226	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2025 – December 31, 2025	Monitoring, Regular	Radium-228	—	Resolved
August 1, 2025 – August 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2025 – August 31, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2025 – September 30, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Xylenes, Total	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Styrene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Benzene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Archived
July 1, 2024 – July 31, 2024	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
November 1, 2023 – November 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 18, 2022 – February 8, 2023	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
August 20, 2022 – February 8, 2023	Failure to Consult with State	Groundwater Rule	—	Resolved
July 13, 2022 – November 23, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2022 – July 31, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
June 13, 2022 – December 12, 2022	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
June 1, 2022 – June 30, 2022	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
September 1, 2021 – September 30, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2021 – August 31, 2021	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
June 1, 2021 – June 30, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
March 1, 2020 – March 31, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Styrene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Toluene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Benzene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2019 – December 31, 2019	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrite	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Combined Uranium	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Radium-228	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Radium-226	—	Resolved
September 1, 2016 – September 30, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 11, 2016 – December 14, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 11, 2016 – December 14, 2016	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	2,4,5-TP	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Chlordane	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Pentachlorophenol	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	2,4-D	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Heptachlor epoxide	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Heptachlor	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	2,3,7,8-TCDD	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	LASSO	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Carbofuran	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Dinoseb	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Picloram	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	OXAMYL	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Endothall	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Dalapon	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Toxaphene	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Methoxychlor	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	BHC-GAMMA	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Endrin	—	Resolved
April 1, 2016 – April 30, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Endrin	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	LASSO	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Simazine	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Diquat	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Methoxychlor	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Nitrite	—	Resolved
February 1, 2014 – February 28, 2014	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
December 1, 2013 – December 31, 2013	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Nitrite	—	Resolved
April 1, 2013 – April 30, 2013	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2012 – December 12, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2010 – November 5, 2010	Monitoring, Regular	Glyphosate	—	Resolved
September 10, 2008 – September 22, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2008 – July 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

February 24, 2026State Public Notification requested20 linked violations
February 18, 2026State Compliance achieved4 linked violations
February 6, 2026State Formal Notice of Violation issued1 linked violation
January 23, 2026State Violation/Reminder Notice24 linked violations
January 15, 2026State Compliance achieved2 linked violations
December 23, 2025State Violation/Reminder Notice1 linked violation
December 23, 2025State Public Notification requested1 linked violation
November 10, 2025State Violation/Reminder Notice2 linked violations
November 10, 2025State Public Notification requested2 linked violations
September 24, 2025State Compliance achieved2 linked violations
September 24, 2025State Violation/Reminder Notice2 linked violations
August 27, 2024State Compliance achieved1 linked violation
August 27, 2024State Public Notification received1 linked violation
January 10, 2024State Public Notification received1 linked violation
January 10, 2024State Compliance achieved1 linked violation
January 9, 2024State Public Notification requested1 linked violation
January 9, 2024State Formal Notice of Violation issued1 linked violation
February 8, 2023State Compliance Meeting conducted2 linked violations
February 8, 2023State Compliance achieved2 linked violations
February 8, 2023State Public Notification received2 linked violations
January 3, 2023State Public Notification requested1 linked violation
January 3, 2023State Formal Notice of Violation issued1 linked violation
December 28, 2022State Formal Notice of Violation issued1 linked violation
December 28, 2022State Public Notification requested1 linked violation
December 12, 2022State Public Notification received2 linked violations
December 12, 2022State Violation/Reminder Notice2 linked violations
December 12, 2022State Compliance achieved2 linked violations
December 12, 2022State Public Notification requested2 linked violations
November 23, 2022State Public Notification received2 linked violations
November 23, 2022State Compliance achieved2 linked violations
November 23, 2022State Public Notification requested2 linked violations
November 23, 2022State Violation/Reminder Notice2 linked violations
November 18, 2022State Public Notification received2 linked violations
November 18, 2022State Compliance achieved2 linked violations
November 14, 2022State Public Notification requested2 linked violations
November 14, 2022State Formal Notice of Violation issued2 linked violations
August 31, 2022State Public Notification received1 linked violation
August 31, 2022State Compliance achieved1 linked violation
October 22, 2021State Violation/Reminder Notice1 linked violation
October 13, 2021State Public Notification received1 linked violation
October 13, 2021State Compliance achieved1 linked violation
October 13, 2021State Formal Notice of Violation issued1 linked violation
October 13, 2021State Public Notification requested1 linked violation
October 13, 2021State Violation/Reminder Notice1 linked violation
August 17, 2021State Compliance achieved1 linked violation
August 3, 2021State Violation/Reminder Notice1 linked violation
December 2, 2020State Compliance achieved21 linked violations
December 2, 2020State Public Notification received20 linked violations
July 15, 2020State Violation/Reminder Notice1 linked violation
February 11, 2020State Violation/Reminder Notice20 linked violations
February 11, 2020State Public Notification requested20 linked violations
November 25, 2019State Compliance achieved1 linked violation
November 25, 2019State Public Notification received1 linked violation
March 7, 2019State Violation/Reminder Notice1 linked violation
March 7, 2019State Public Notification requested1 linked violation
March 7, 2019State Public Notification requested1 linked violation
March 7, 2019State Violation/Reminder Notice1 linked violation
February 14, 2019State Compliance achieved2 linked violations
February 1, 2019State Violation/Reminder Notice2 linked violations
June 28, 2017State Compliance achieved1 linked violation
June 28, 2017State Public Notification received1 linked violation
March 24, 2017State Violation/Reminder Notice3 linked violations
March 24, 2017State Compliance achieved3 linked violations
December 16, 2016State Public Notification requested1 linked violation
December 14, 2016State Public Notification received2 linked violations
December 14, 2016State Compliance achieved2 linked violations
December 14, 2016State Public Notification received2 linked violations
December 14, 2016State Compliance achieved2 linked violations
December 9, 2016State Public Notification requested2 linked violations
December 8, 2016State Violation/Reminder Notice4 linked violations
December 8, 2016State Compliance achieved1 linked violation
September 29, 2016State Compliance achieved1 linked violation
September 29, 2016State Violation/Reminder Notice1 linked violation
August 24, 2016State Compliance achieved23 linked violations
May 25, 2016State Compliance achieved19 linked violations
April 22, 2016State Compliance achieved1 linked violation
October 5, 2015State Public Notification requested2 linked violations
October 5, 2015State Violation/Reminder Notice2 linked violations
October 24, 2014State Compliance achieved1 linked violation
October 24, 2014State Boil Water Order1 linked violation
June 24, 2014State Compliance achieved1 linked violation
January 28, 2014State Violation/Reminder Notice1 linked violation
August 22, 2013State Compliance achieved2 linked violations
August 22, 2013State Violation/Reminder Notice2 linked violations
June 13, 2013State Compliance achieved1 linked violation
June 12, 2013State Violation/Reminder Notice1 linked violation
December 12, 2012State Compliance achieved1 linked violation
November 29, 2012State Violation/Reminder Notice1 linked violation
August 11, 2011State Violation/Reminder Notice2 linked violations
August 11, 2011State Compliance achieved2 linked violations
November 5, 2010State Compliance achieved1 linked violation
September 22, 2008State Compliance achieved2 linked violations
September 15, 2008State Compliance achieved1 linked violation
September 5, 2008State Formal Notice of Violation issued2 linked violations

Contact

DOE RUN MOBILE HOME PARK

570-823-6297

UNIONVILLE, PA 19375