WEST SHEFFIELD WATER ASSN
PWS ID: PA6620007 · SHEFFIELD, Pennsylvania 16347
WEST SHEFFIELD WATER ASSN serves 225 people in SHEFFIELD, Pennsylvania using Groundwater water sources. It has 400 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.
Water Quality Snapshot: WEST SHEFFIELD WATER ASSN
WEST SHEFFIELD WATER ASSN is a private-owned community water system that delivers drinking water to 225 residents in SHEFFIELD, Pennsylvania (Warren County) through 72 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 400 total violations for this system , of which 10 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 376 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.
The most frequently cited contaminant at this system is Coliform (TCR), recorded in 74 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.
Across Pennsylvania, EPA tracks 7,701 public water systems serving 12,630,061 people, with 1,159,868 cumulative violations and 68,517 health-based violations on record. About 97% of systems in the state carry at least one violation, and state-wide the average per system is 150.6 violations. WEST SHEFFIELD WATER ASSN's 400 violations sit above the Pennsylvania average. Statewide, 224 of 389 UCMR5-tested systems have reported PFAS detections (57.6%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.
System Details
- System Type
- Community
- Owner Type
- Private
- Connections
- 72
- County
- Warren
- School/Daycare
- No
- MCL Violations
- 10
- Monitoring Violations
- 376
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 74 | 2011 |
| Chlorine | MR | 25 | 2022 |
| Nitrate | MR | 16 | 2019 |
| p-Dichlorobenzene | MR | 14 | 1994 |
| 1,1-Dichloroethylene | MR | 14 | 1994 |
| 1,2-Dichloroethane | MR | 14 | 1994 |
| 1,1,1-Trichloroethane | MR | 14 | 1994 |
| Carbon tetrachloride | MR | 14 | 1994 |
| Benzene | MR | 14 | 1994 |
| Trichloroethylene | MR | 14 | 1994 |
| Vinyl chloride | MR | 12 | 1992 |
| Coliform (TCR) | MCL | 8 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 8 | 1992 |
| Selenium | MR | 7 | 1994 |
| Mercury | MR | 7 | 1994 |
| Arsenic | MR | 7 | 1994 |
| Chromium | MR | 7 | 1994 |
| Cadmium | MR | 7 | 1994 |
| Barium | MR | 7 | 1994 |
| Fluoride | MR | 7 | 1994 |
| Radium-226 | MR | 6 | 2007 |
| Radium-228 | MR | 6 | 2007 |
| Revised Total Coliform Rule | MON | 6 | 2018 |
| Nitrite | MR | 6 | 2019 |
| Consumer Confidence Rule | Other | 5 | 2004 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2015 |
| Groundwater Rule | MR | 4 | 2023 |
| 2,4-D | MR | 3 | 1988 |
| Endrin | MR | 3 | 1988 |
| BHC-GAMMA | MR | 3 | 1988 |
Verify This Water System
The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for WEST SHEFFIELD WATER ASSN.
EPA SDWIS — Federal Reports
EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:
View PWS ID PA6620007 on SDWISSource: EPA SDWIS Federal Reports Search
Pennsylvania Drinking Water Authority
Pennsylvania DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects WEST SHEFFIELD WATER ASSN under EPA-delegated authority.
Open PA regulator portalViolation Timeline
Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.
| Year (latest) | Contaminant | Category | Count | EPA Record |
|---|---|---|---|---|
| 2023 | Groundwater Rule | MR | 4 | SDWIS / PA6620007 / 0700 |
| 2022 | Chlorine | MR | 25 | SDWIS / PA6620007 / 0999 |
| 2019 | Nitrate | MR | 16 | SDWIS / PA6620007 / 1040 |
| 2019 | Nitrite | MR | 6 | SDWIS / PA6620007 / 1041 |
| 2018 | Revised Total Coliform Rule | MON | 6 | SDWIS / PA6620007 / 8000 |
| 2018 | Revised Total Coliform Rule | RPT | 2 | SDWIS / PA6620007 / 8000 |
| 2017 | Revised Total Coliform Rule | MCL | 2 | SDWIS / PA6620007 / 8000 |
| 2015 | Di(2-ethylhexyl) phthalate | MR | 4 | SDWIS / PA6620007 / 2039 |
| 2014 | Coliform (TCR) | MCL | 8 | SDWIS / PA6620007 / 3100 |
| 2011 | Coliform (TCR) | MR | 74 | SDWIS / PA6620007 / 3100 |
| 2007 | Radium-226 | MR | 6 | SDWIS / PA6620007 / 4020 |
| 2007 | Radium-228 | MR | 6 | SDWIS / PA6620007 / 4030 |
| 2004 | Consumer Confidence Rule | Other | 5 | SDWIS / PA6620007 / 7000 |
| 1996 | Lead and Copper Rule | MR | 3 | SDWIS / PA6620007 / 5000 |
| 1994 | p-Dichlorobenzene | MR | 14 | SDWIS / PA6620007 / 2969 |
How WEST SHEFFIELD WATER ASSN Compares
Cross-reference this system's record against state averages and the federal MCL framework for context.
| Metric | WEST SHEFFIELD WATER ASSN | Pennsylvania avg | Federal benchmark |
|---|---|---|---|
| Total violations | 400 | 150.6 | SDWA compliance — any non-zero count is a recorded breach |
| Health-based violations | 10 | 8.9 | Indicates a contaminant exceeded a federal MCL |
| PFAS detection | None | 57.6% | EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt |
| Population served | 225 | 1,640 | Sizing context for compliance burden |
Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,701 regulated public water systems in Pennsylvania.
Federal MCL reference — Safe Drinking Water Act thresholds ▼
| Contaminant | Federal MCL / Action Level | Note |
|---|---|---|
| Lead | 0 mg/L (Action Level: 0.015 mg/L) | Lead and Copper Rule treatment technique |
| Arsenic | 0.010 mg/L (10 ppb) | Health-based MCL since 2006 |
| Total Coliform | Treatment technique (RTCR) | Indicator organism, monitoring trigger |
| PFOA / PFOS (PFAS) | 4.0 ppt each (final 2024 rule) | Compliance deadline 2029 |
| Nitrate (as N) | 10 mg/L | Acute health risk for infants |
Frequently Asked Questions
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Read our methodology — how this data is sourced, computed, and verified.