DALLASTOWN, PA · York County

DALLASTOWN YOE WATER AUTH Water System

Current status

2 items on record are 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): PA7670085
System type: Community Water System
Population served: 12,300
Service connections: 4,508
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2024 – November 30, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
November 1, 2024 – November 30, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2024 – August 31, 2024
Archived
Monitoring and Reporting (DBP)
—
Chlorine
August 1, 2024 – August 31, 2024
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2024
Unaddressed
Public Notification Violation for NPDWR Violation
—
Public Notice
July 11, 2024
Unaddressed
Monitoring and Reporting (DBP)
—
TTHM
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2022 – September 30, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
June 1, 2021 – June 30, 2021
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2021 – June 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2019 – June 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2018 – March 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2018 – March 31, 2018
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2017 – December 31, 2017
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
November 1, 2017 – January 25, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2017 – December 31, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
June 1, 2017 – June 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2017 – June 30, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2016 – December 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2015 – September 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2015 – September 30, 2015
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2014 – October 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2014 – December 18, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2014 – September 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2014 – September 30, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2014 – March 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2014 – March 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2014 – March 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2014 – January 31, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2011 – September 30, 2011
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2011 – August 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2011 – September 30, 2011
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2008 – November 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2008 – December 26, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
August 1, 2007 – August 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2006 – December 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2006 – October 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2006 – April 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2006 – June 6, 2006
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2006 – January 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2006 – March 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2006 – March 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2006 – January 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2006 – March 7, 2006
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1998 – December 3, 1998
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
November 1, 2024 – November 30, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2024 – November 30, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2024 – August 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Archived
August 1, 2024 – August 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Archived
July 11, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
July 11, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2022 – September 30, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
June 1, 2021 – June 30, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2021 – June 30, 2021	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2019 – June 30, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 1, 2017 – December 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2017 – January 25, 2018	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2017 – June 30, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2015 – September 30, 2015	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2015 – September 30, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2014 – October 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2014 – December 18, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2014 – March 31, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2014 – January 31, 2014	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2011 – September 30, 2011	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2011 – August 31, 2011	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
November 1, 2008 – November 30, 2008	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2008 – December 26, 2008	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2008 – July 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2007 – August 31, 2007	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2006 – October 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2006 – April 30, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2006 – June 6, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2006 – January 31, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2006 – January 31, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2006 – March 7, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 1998 – December 3, 1998	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

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

Enforcement actions

December 20, 2024State Compliance achieved2 linked violations
December 20, 2024State Violation/Reminder Notice2 linked violations
September 25, 2024State Violation/Reminder Notice4 linked violations
July 26, 2023State Formal Notice of Violation issued2 linked violations
July 26, 2023State Compliance achieved2 linked violations
July 26, 2023State Public Notification requested2 linked violations
May 31, 2023State Public Notification received2 linked violations
October 26, 2022State Public Notification requested2 linked violations
October 26, 2022State Formal Notice of Violation issued2 linked violations
October 26, 2022State Compliance achieved2 linked violations
November 17, 2021State Compliance achieved2 linked violations
November 17, 2021State Violation/Reminder Notice2 linked violations
August 23, 2021State Compliance achieved2 linked violations
August 4, 2021State Violation/Reminder Notice2 linked violations
September 4, 2019State Public Notification received2 linked violations
September 4, 2019State Compliance achieved2 linked violations
August 7, 2019State Formal Notice of Violation issued2 linked violations
August 7, 2019State Public Notification requested2 linked violations
August 7, 2019State Violation/Reminder Notice2 linked violations
May 7, 2018State Violation/Reminder Notice2 linked violations
May 7, 2018State Compliance achieved2 linked violations
May 7, 2018State Public Notification received2 linked violations
May 7, 2018State Public Notification requested2 linked violations
February 26, 2018State Compliance achieved2 linked violations
January 25, 2018State Violation/Reminder Notice2 linked violations
January 25, 2018State Compliance achieved1 linked violation
December 27, 2017State Violation/Reminder Notice1 linked violation
September 18, 2017State Compliance achieved2 linked violations
July 21, 2017State Violation/Reminder Notice2 linked violations
February 3, 2017State Compliance achieved2 linked violations
November 10, 2015State Compliance achieved2 linked violations
December 18, 2014State Violation/Reminder Notice2 linked violations
December 18, 2014State Compliance achieved2 linked violations
November 19, 2014State Violation/Reminder Notice2 linked violations
November 19, 2014State Compliance achieved6 linked violations
May 16, 2014State Violation/Reminder Notice4 linked violations
December 14, 2011State Compliance achieved3 linked violations
November 18, 2011State Violation/Reminder Notice3 linked violations
December 26, 2008State Compliance achieved2 linked violations
September 16, 2008State Compliance achieved1 linked violation
August 21, 2008State Formal Notice of Violation issued1 linked violation
October 25, 2007State Formal Notice of Violation issued1 linked violation
October 25, 2007State Compliance achieved1 linked violation
September 26, 2007State Violation/Reminder Notice1 linked violation
September 26, 2007State Violation/Reminder Notice1 linked violation
May 16, 2007State Compliance achieved2 linked violations
January 31, 2007State Violation/Reminder Notice2 linked violations
December 7, 2006State Violation/Reminder Notice1 linked violation
December 7, 2006State Compliance achieved1 linked violation
December 7, 2006State Public Notification requested1 linked violation
July 13, 2006State Compliance achieved3 linked violations
July 13, 2006State Public Notification requested2 linked violations
July 13, 2006State Public Notification received3 linked violations
June 6, 2006State Compliance achieved2 linked violations
May 18, 2006State Violation/Reminder Notice2 linked violations
March 7, 2006State Violation/Reminder Notice1 linked violation
March 7, 2006State Compliance achieved2 linked violations
March 7, 2006State Public Notification requested1 linked violation
August 8, 1984State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Contact

DALLASTOWN YOE WATER AUTH

717-244-6626

DALLASTOWN, PA 17313