Public water system · PA6620031
ActiveSheffield Twp Municipal Auth
At a glance
Sheffield Twp Municipal Auth (PWSID PA6620031) is an active community water system in Warren County, Pennsylvania. It reports serving 1,075 people through 684 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,075
Service connections
684
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Sheffield Twp Municipal Auth compare with other water systems in Warren County?
By EPA's size categories, Sheffield Twp Municipal Auth is a small system (501 to 3,300 people). Warren County has 61 active public water systems, and Sheffield Twp Municipal Auth is the 4th-largest of them by population served. Its population served is about twice the county average of 501 people per system, and accounts for 3.5% of the 30,533 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active community water system reports serving 6,703 people, so Sheffield Twp Municipal Auth is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Pennsylvania has 1,762 active community water systems, 24% of the state's 7,217 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,632 Pennsylvania systems (92%) list groundwater as their primary source.
Who owns and regulates Sheffield Twp Municipal Auth?
EPA lists Sheffield Twp Municipal Auth as owned by a local government. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 61 active systems in Warren County (8.2%) are also owned by a local government.
Does Sheffield Twp Municipal Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2025. The violations listed here began between July 2014 and February 2025. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Groundwater Rule (6 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2019-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2019-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2018-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2018-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2014-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Sheffield Twp Municipal Auth: frequently asked questions
Who runs Sheffield Twp Municipal Auth?
Sheffield Twp Municipal Auth (PWSID PA6620031) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Sheffield Twp Municipal Auth serve?
Sheffield Twp Municipal Auth reports serving 1,075 people through 684 service connections in Warren County, Pennsylvania.
Where does Sheffield Twp Municipal Auth get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Sheffield Twp Municipal Auth have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Sheffield Twp Municipal Auth's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Sheffield Twp Municipal Auth's water quality report?
As a community water system, Sheffield Twp Municipal Auth must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Warren County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pa American Water Co Warren | Warren | 14,650 | Community | Groundwater |
| Youngsville Mun Waterworks | Warren | 1,957 | Community | Groundwater |
| North Warren Muni Authority | Warren | 1,749 | Community | Groundwater |
| Southwest Warren Co Mun Auth | Warren | 1,040 | Community | Surface water |
| Aqua Pa Clarendon | Warren | 840 | Community | Groundwater |
| Eisenhower Elemen Middle Hs | Warren | 835 | Non-transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Sheffield Twp Municipal Auth, PWSID PA6620031, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/sheffield-twp-municipal-auth-pa6620031 (data as of October 1, 2026).