DAYTON, PA · Armstrong County

DAYTON MUNI WATER DEPT 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): PA5030002
System type: Community Water System
Population served: 600
Service connections: 286
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Radium-228
October 1, 2025 – December 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2025 – September 30, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2025 – January 31, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
December 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2023 – September 30, 2023
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2023 – January 31, 2023
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2021 – August 31, 2021
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2021 – December 31, 2021
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2020 – July 31, 2020
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2020 – April 30, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2020 – February 29, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2019 – August 31, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – September 16, 2019
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
June 11, 2019 – August 19, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
March 1, 2019 – March 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
February 1, 2019 – February 28, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2019 – March 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
May 1, 2018 – May 31, 2018
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
May 1, 2018 – September 26, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2018 – June 30, 2018
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2017 – September 30, 2017
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2017 – August 31, 2017
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2017 – July 31, 2017
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
April 1, 2017 – August 1, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 11, 2016 – March 8, 2017
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
October 11, 2016 – March 8, 2017
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2016 – August 31, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2015 – December 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2015 – September 30, 2015
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2015 – July 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2015 – September 30, 2015
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
June 1, 2015 – June 30, 2015
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
December 1, 2013 – December 31, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Heptachlor epoxide
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Heptachlor
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Dinoseb
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Endrin
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
2,4,5-TP
April 1, 2011 – June 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2006 – December 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – September 26, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – February 22, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2002 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1996 – June 30, 2000
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 1980 – June 30, 1984
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
October 1, 2025 – December 31, 2025	Monitoring, Regular	Radium-228	—	Archived
September 1, 2025 – September 30, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2025 – January 31, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2023 – January 31, 2023	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
August 1, 2021 – August 31, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2021 – December 31, 2021	Monitoring, Regular	Antimony, Total	—	Resolved
July 1, 2020 – July 31, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2020 – April 30, 2020	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
February 1, 2020 – February 29, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 1, 2019 – August 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2019 – September 16, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 11, 2019 – August 19, 2019	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 1, 2019 – March 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
February 1, 2019 – February 28, 2019	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
May 1, 2018 – May 31, 2018	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
May 1, 2018 – September 26, 2018	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2018 – June 30, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
September 1, 2017 – September 30, 2017	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2017 – August 1, 2017	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 11, 2016 – March 8, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 11, 2016 – March 8, 2017	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
August 1, 2016 – August 31, 2016	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – July 31, 2015	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
June 1, 2015 – June 30, 2015	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
December 1, 2013 – December 31, 2013	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Heptachlor epoxide	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Heptachlor	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Dinoseb	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Dalapon	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Toxaphene	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Endrin	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	2,4,5-TP	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2006 – September 26, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2005 – February 22, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CYANIDE	—	Resolved
August 1, 1996 – August 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 1996 – August 31, 1996	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 1996 – June 30, 2000	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 1980 – June 30, 1984	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

February 11, 2026State Formal Notice of Violation issued1 linked violation
February 11, 2026State Public Notification requested1 linked violation
December 4, 2025State Compliance achieved1 linked violation
November 12, 2025State Formal Notice of Violation issued1 linked violation
November 12, 2025State Public Notification requested1 linked violation
June 26, 2025State Compliance achieved2 linked violations
June 26, 2025State Public Notification requested2 linked violations
March 18, 2025State Compliance achieved1 linked violation
March 14, 2025State Public Notification requested1 linked violation
March 14, 2025State Formal Notice of Violation issued1 linked violation
March 14, 2024State Public Notification received12 linked violations
February 6, 2024State Violation/Reminder Notice1 linked violation
February 6, 2024State Compliance achieved1 linked violation
November 1, 2023State Violation/Reminder Notice2 linked violations
March 27, 2023State Compliance achieved1 linked violation
March 14, 2023State Violation/Reminder Notice1 linked violation
March 29, 2022State Compliance achieved12 linked violations
March 28, 2022State Public Notification requested12 linked violations
March 28, 2022State Violation/Reminder Notice12 linked violations
January 27, 2022State Compliance achieved1 linked violation
October 13, 2021State Violation/Reminder Notice1 linked violation
September 16, 2020State Violation/Reminder Notice1 linked violation
September 16, 2020State Compliance achieved1 linked violation
September 16, 2020State Compliance achieved1 linked violation
September 16, 2020State Violation/Reminder Notice1 linked violation
June 16, 2020State Public Notification received1 linked violation
June 12, 2020State Compliance achieved2 linked violations
June 12, 2020State Violation/Reminder Notice1 linked violation
April 29, 2020State Public Notification received2 linked violations
April 13, 2020State Public Notification requested1 linked violation
April 13, 2020State Violation/Reminder Notice1 linked violation
February 14, 2020State Compliance achieved2 linked violations
February 14, 2020State Violation/Reminder Notice2 linked violations
November 18, 2019State Compliance achieved1 linked violation
September 27, 2019State Violation/Reminder Notice1 linked violation
September 27, 2019State Public Notification requested1 linked violation
September 27, 2019State Public Notification requested1 linked violation
September 27, 2019State Violation/Reminder Notice1 linked violation
September 16, 2019State Compliance achieved1 linked violation
September 16, 2019State Violation/Reminder Notice1 linked violation
August 19, 2019State Compliance achieved1 linked violation
August 19, 2019State Violation/Reminder Notice1 linked violation
June 14, 2019State Compliance achieved2 linked violations
June 14, 2019State Compliance achieved1 linked violation
June 14, 2019State Violation/Reminder Notice1 linked violation
May 15, 2019State Violation/Reminder Notice2 linked violations
May 15, 2019State Compliance achieved1 linked violation
May 15, 2019State Public Notification requested2 linked violations
May 15, 2019State Violation/Reminder Notice2 linked violations
May 15, 2019State Compliance achieved1 linked violation
May 15, 2019State Public Notification requested2 linked violations
March 1, 2019State Compliance achieved1 linked violation
November 20, 2018State Compliance achieved1 linked violation
November 14, 2018State Compliance achieved1 linked violation
October 18, 2018State Compliance achieved2 linked violations
October 18, 2018State Compliance achieved1 linked violation
September 28, 2018State Violation/Reminder Notice1 linked violation
September 26, 2018State Violation/Reminder Notice3 linked violations
September 26, 2018State Violation/Reminder Notice3 linked violations
September 26, 2018State Compliance achieved2 linked violations
June 11, 2018State Violation/Reminder Notice2 linked violations
June 11, 2018State Compliance achieved2 linked violations
August 1, 2017State Compliance achieved1 linked violation
August 1, 2017State Violation/Reminder Notice1 linked violation
March 24, 2017State Compliance achieved1 linked violation
March 8, 2017State Compliance achieved2 linked violations
November 14, 2016State Compliance achieved1 linked violation
March 24, 2016State Violation/Reminder Notice1 linked violation
December 7, 2015State Formal Notice of Violation issued2 linked violations
December 7, 2015State Public Notification requested2 linked violations
December 7, 2015State Violation/Reminder Notice2 linked violations
December 7, 2015State Violation/Reminder Notice2 linked violations
December 7, 2015State Public Notification requested2 linked violations
December 7, 2015State Formal Notice of Violation issued2 linked violations
October 8, 2015State Compliance achieved1 linked violation
October 5, 2015State Compliance achieved1 linked violation
July 30, 2015State Violation/Reminder Notice1 linked violation
July 30, 2015State Violation/Reminder Notice1 linked violation
January 28, 2014State Compliance achieved1 linked violation
August 15, 2011State Compliance achieved8 linked violations
August 20, 2007State Compliance achieved1 linked violation
September 26, 2006State Compliance achieved1 linked violation
February 22, 2006State Compliance achieved1 linked violation
February 22, 2006State Consent Decree/Judgement1 linked violation
October 21, 2005State Formal Notice of Violation issued1 linked violation
September 13, 2005State Compliance achieved1 linked violation
September 13, 2005State Consent Decree/Judgement1 linked violation
March 23, 2005State Consent Decree/Judgement20 linked violations
March 23, 2005State Compliance achieved20 linked violations
March 22, 1991State Public Notification requested1 linked violation
May 27, 1987State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 20, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 22, 1984State Violation/Reminder Notice1 linked violation

Contact

DAYTON MUNI WATER DEPT

814-257-9826

DAYTON, PA 16222