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REW WATER ASSOCIATION

PWS ID: PA6420013 · REW, Pennsylvania 16744

REW WATER ASSOCIATION serves 325 people in REW, Pennsylvania using Groundwater water sources. It has 155 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: REW WATER ASSOCIATION

REW WATER ASSOCIATION is a private-owned community water system that delivers drinking water to 325 residents in REW, Pennsylvania (McKean County) through 90 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 155 total violations for this system , of which 4 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 137 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Chlorine, recorded in 18 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. REW WATER ASSOCIATION's 155 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.

Population Served
325
Total Violations
155
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
90
County
McKean
School/Daycare
No
MCL Violations
0
Monitoring Violations
137
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 18 2022
Groundwater Rule MR 14 2023
Coliform (TCR) MR 8 2009
Gross Alpha, Excl. Radon and U MR 6 2007
TTHM MR 6 2015
Consumer Confidence Rule Other 5 2025
Total Haloacetic Acids (HAA5) MR 4 2015
Groundwater Rule TT 4 2023
Revised Total Coliform Rule MON 4 2020
p-Dichlorobenzene MR 3 1996
Public Notice Other 3 2023
Nitrate MR 3 1996
Radium-226 MR 2 2007
Radium-228 MR 2 2007
1,2,4-Trichlorobenzene MR 2 1996
cis-1,2-Dichloroethylene MR 2 1996
Xylenes, Total MR 2 1996
1,2-Dichloroethane MR 2 1996
1,2-Dichloropropane MR 2 1996
Benzene MR 2 1996
Styrene MR 2 1996
Barium MR 2 1994
Chromium MR 2 1994
Fluoride MR 2 1994
Lead and Copper Rule MR 2 1997
trans-1,2-Dichloroethylene MR 2 1996
1,1,1-Trichloroethane MR 2 1996
Carbon tetrachloride MR 2 1996
Trichloroethylene MR 2 1996
1,1,2-Trichloroethane MR 2 1996

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 REW WATER ASSOCIATION.

Federal Source of Truth

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 PA6420013 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Pennsylvania Drinking Water Authority

Pennsylvania DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects REW WATER ASSOCIATION under EPA-delegated authority.

Open PA regulator portal

Source: Pennsylvania DEP — Bureau of Safe Drinking Water

Violation 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
2025 Consumer Confidence Rule Other 5 SDWIS / PA6420013 / 7000
2023 Groundwater Rule MR 14 SDWIS / PA6420013 / 0700
2023 Groundwater Rule TT 4 SDWIS / PA6420013 / 0700
2023 Public Notice Other 3 SDWIS / PA6420013 / 7500
2022 Chlorine MR 18 SDWIS / PA6420013 / 0999
2020 Revised Total Coliform Rule MON 4 SDWIS / PA6420013 / 8000
2015 TTHM MR 6 SDWIS / PA6420013 / 2950
2015 Total Haloacetic Acids (HAA5) MR 4 SDWIS / PA6420013 / 2456
2009 Coliform (TCR) MR 8 SDWIS / PA6420013 / 3100
2007 Gross Alpha, Excl. Radon and U MR 6 SDWIS / PA6420013 / 4000
2007 Radium-226 MR 2 SDWIS / PA6420013 / 4020
2007 Radium-228 MR 2 SDWIS / PA6420013 / 4030
2007 Combined Uranium MR 2 SDWIS / PA6420013 / 4006
1997 Lead and Copper Rule MR 2 SDWIS / PA6420013 / 5000
1996 p-Dichlorobenzene MR 3 SDWIS / PA6420013 / 2969

How REW WATER ASSOCIATION Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric REW WATER ASSOCIATION Pennsylvania avg Federal benchmark
Total violations 155 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 325 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

Is REW WATER ASSOCIATION water safe to drink? ▼
REW WATER ASSOCIATION (PWS ID: PA6420013) has 155 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 325 people using Groundwater sources.
How many people does REW WATER ASSOCIATION serve? ▼
REW WATER ASSOCIATION serves 325 people in REW, Pennsylvania. It is a Private-owned system using Groundwater water sources with 90 service connections.
What type of violations does REW WATER ASSOCIATION have? ▼
REW WATER ASSOCIATION has 155 total violations: 4 health-based violations (MCL exceedances or treatment failures), 137 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in REW WATER ASSOCIATION water? ▼
No PFAS testing data is available for REW WATER ASSOCIATION under the EPA's UCMR5 monitoring program.
What water source does REW WATER ASSOCIATION use? ▼
REW WATER ASSOCIATION uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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