Is MAWC SWEENEY PLANT required to publish a Consumer Confidence Report?

Yes. MAWC SWEENEY PLANT 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 MAWC SWEENEY PLANT’s next Consumer Confidence Report due?

MAWC SWEENEY PLANT’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.

GREENSBURG, PA · Westmoreland County

MAWC SWEENEY PLANT Water System

Consumer Confidence Report status

MAWC SWEENEY PLANT 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 MAWC SWEENEY PLANT.

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): PA5650032
System type: Community Water System
Population served: 143,000
Service connections: 60,233
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MAWC SWEENEY PLANT is among the 16 largest community water systems in Pennsylvania, serving 143,000 people from surface water.

As of August 1, 2026, its federal record holds 29 entries between 1979 and 2025, all of which EPA lists as closed.

Of the 29, 25 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 the Stage 1 Disinfectants and Disinfection Byproducts Rule, the Surface Water Treatment Rules, and the Total Coliform Rules.

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2025 – February 28, 2025
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
June 1, 2023 – August 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
November 1, 2022 – January 31, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2022 – November 29, 2022
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
September 1, 2020 – September 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2019 – September 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2019 – March 31, 2019
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
October 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2018 – September 30, 2018
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
June 1, 2018 – September 10, 2018
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2016 – October 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
October 1, 2016 – December 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2016 – July 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2016 – September 30, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2016 – May 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 2016 – March 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2016 – March 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2016 – March 31, 2016
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2016 – January 31, 2016
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2015 – October 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2015 – December 31, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 7, 2013
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
January 1, 2013 – March 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
July 1, 2008 – September 30, 2008
Resolved
Monitoring, Regular
—
Gross Beta Particle Activity
July 1, 1979 – June 30, 1983
Archived
Monitoring, Regular
—
38-STRONTIUM-90
July 1, 1979 – June 30, 1983
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
February 1, 2025 – February 28, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
June 1, 2023 – August 31, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
November 1, 2022 – January 31, 2023	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
October 1, 2022 – November 29, 2022	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
September 1, 2020 – September 30, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2019 – March 31, 2019	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
October 1, 2018 – December 31, 2018	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2018 – September 30, 2018	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
June 1, 2018 – September 10, 2018	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – October 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2016 – July 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
May 1, 2016 – May 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 2016 – March 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2016 – January 31, 2016	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2015 – October 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2015 – December 31, 2015	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2013 – October 7, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 2008 – September 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 1979 – June 30, 1983	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
July 1, 1979 – June 30, 1983	Monitoring, Regular	38-STRONTIUM-90	—	Archived

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

Enforcement actions

April 28, 2025State Compliance achieved1 linked violation
April 14, 2025State Public Notification requested1 linked violation
April 14, 2025State Formal Notice of Violation issued1 linked violation
November 17, 2023State Compliance achieved1 linked violation
August 11, 2023State Public Notification requested1 linked violation
August 11, 2023State Formal Notice of Violation issued1 linked violation
June 6, 2023State Compliance achieved1 linked violation
February 14, 2023State Formal Notice of Violation issued1 linked violation
February 14, 2023State Public Notification requested1 linked violation
November 29, 2022State Compliance achieved1 linked violation
December 9, 2020State Compliance achieved1 linked violation
November 4, 2020State Violation/Reminder Notice1 linked violation
September 23, 2020State Compliance achieved2 linked violations
September 9, 2020State Compliance achieved1 linked violation
July 31, 2019State Public Notification received1 linked violation
July 31, 2019State Compliance achieved2 linked violations
June 17, 2019State Violation/Reminder Notice1 linked violation
June 17, 2019State Public Notification received1 linked violation
February 7, 2019State Formal Notice of Violation issued2 linked violations
February 7, 2019State Compliance achieved1 linked violation
February 7, 2019State Public Notification requested2 linked violations
February 7, 2019State Violation/Reminder Notice2 linked violations
September 10, 2018State Compliance achieved1 linked violation
September 10, 2018State Violation/Reminder Notice1 linked violation
April 17, 2017State Compliance achieved1 linked violation
February 23, 2017State Violation/Reminder Notice1 linked violation
December 28, 2016State Compliance achieved1 linked violation
November 17, 2016State Compliance achieved1 linked violation
November 17, 2016State Violation/Reminder Notice1 linked violation
October 19, 2016State Compliance achieved1 linked violation
October 13, 2016State Compliance achieved2 linked violations
August 23, 2016State Violation/Reminder Notice2 linked violations
August 23, 2016State Violation/Reminder Notice2 linked violations
July 12, 2016State Compliance achieved2 linked violations
June 23, 2016State Violation/Reminder Notice1 linked violation
June 23, 2016State Violation/Reminder Notice1 linked violation
June 23, 2016State Compliance achieved4 linked violations
May 10, 2016State Violation/Reminder Notice4 linked violations
March 21, 2016State Compliance achieved1 linked violation
March 1, 2016State Violation/Reminder Notice1 linked violation
February 17, 2016State Violation/Reminder Notice2 linked violations
October 7, 2013State Compliance achieved1 linked violation
June 3, 2013State Compliance achieved1 linked violation
May 20, 2013State Violation/Reminder Notice1 linked violation
May 10, 2011State Compliance achieved1 linked violation
May 10, 2011State Public Notification received1 linked violation
May 10, 2011State Public Notification requested1 linked violation
May 10, 2011State Violation/Reminder Notice1 linked violation
June 1, 1988State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record

Common questions

Is MAWC SWEENEY PLANT required to publish a Consumer Confidence Report?: Yes. MAWC SWEENEY PLANT 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 MAWC SWEENEY PLANT’s next Consumer Confidence Report due?: MAWC SWEENEY PLANT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAWC SWEENEY PLANT have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MAWC SWEENEY PLANT.
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

MAWC SWEENEY PLANT

724-755-5800

GREENSBURG, PA 15601