Public water system · PA6620007
ActiveWest Sheffield Water Assn
At a glance
West Sheffield Water Assn (PWSID PA6620007) is an active community water system in Warren County, Pennsylvania. It reports serving 225 people through 72 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
225
Service connections
72
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does West Sheffield Water Assn compare with other water systems in Warren County?
By EPA's size categories, West Sheffield Water Assn is a very small system (500 people or fewer). Warren County has 61 active public water systems. Its population served is about 55% below the county average of 501 people per system, and accounts for 0.7% 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 West Sheffield Water Assn 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 West Sheffield Water Assn?
EPA lists West Sheffield Water Assn as privately owned. 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. 36 of the 61 active systems in Warren County (59%) are also privately owned.
Does West Sheffield Water Assn have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2023. The violations listed here began between May 2014 and October 2023. By type: 6 monitoring and reporting, 3 contaminant level above the legal limit, 2 monitoring and 1 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (4 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2022-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-01-03 | ReportingReporting, Assessment Forms (RTCR) · code 4A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, E. coli (RTCR) · code 1A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2016-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2015-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Resolved |
| 2014-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2014-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | 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.
West Sheffield Water Assn: frequently asked questions
Who runs West Sheffield Water Assn?
West Sheffield Water Assn (PWSID PA6620007) is a community water system privately owned. It is regulated by the PA state drinking water program.
How many people does West Sheffield Water Assn serve?
West Sheffield Water Assn reports serving 225 people through 72 service connections in Warren County, Pennsylvania.
Where does West Sheffield Water Assn 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 West Sheffield Water Assn have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2023. 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 West Sheffield Water Assn'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, 3 are health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find West Sheffield Water Assn's water quality report?
As a community water system, West Sheffield Water Assn 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 |
| Sheffield Twp Municipal Auth | Warren | 1,075 | Community | Groundwater |
| Southwest Warren Co Mun Auth | Warren | 1,040 | Community | Surface water |
| Aqua Pa Clarendon | Warren | 840 | 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, “West Sheffield Water Assn, PWSID PA6620007, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/west-sheffield-water-assn-pa6620007 (data as of October 1, 2026).