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BCWSA ST STEPHENS GREENE

PWS ID: PA1150210 · WARRINGTON, Pennsylvania 18976

BCWSA ST STEPHENS GREENE serves 130 people in WARRINGTON, Pennsylvania using Groundwater water sources. It has 260 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: BCWSA ST STEPHENS GREENE

BCWSA ST STEPHENS GREENE is a local-owned community water system that delivers drinking water to 130 residents in WARRINGTON, Pennsylvania (Chester County) through 34 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 260 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 242 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 17 violations (Other). 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. BCWSA ST STEPHENS GREENE's 260 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
130
Total Violations
260
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
34
County
Chester
School/Daycare
No
MCL Violations
0
Monitoring Violations
242
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 17 2011
Coliform (TCR) MR 12 2006
1,2,4-Trichlorobenzene MR 9 2013
cis-1,2-Dichloroethylene MR 9 2013
p-Dichlorobenzene MR 9 2013
1,1-Dichloroethylene MR 9 2013
trans-1,2-Dichloroethylene MR 9 2013
1,2-Dichloroethane MR 9 2013
Carbon tetrachloride MR 9 2013
Toluene MR 9 2013
Styrene MR 9 2013
Xylenes, Total MR 9 2013
DICHLOROMETHANE MR 9 2013
1,1,1-Trichloroethane MR 9 2013
1,2-Dichloropropane MR 9 2013
Trichloroethylene MR 9 2013
Benzene MR 9 2013
Ethylbenzene MR 9 2013
o-Dichlorobenzene MR 9 2013
1,1,2-Trichloroethane MR 9 2013
CHLOROBENZENE MR 9 2013
Tetrachloroethylene MR 9 2013
Chlorine MR 4 2006
Groundwater Rule MR 4 2015
Nitrate MR 2 2000
Methoxychlor MR 2 1998
Di(2-ethylhexyl) adipate MR 2 1998
Simazine MR 2 1998
Di(2-ethylhexyl) phthalate MR 2 1998
Picloram MR 2 1998

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 BCWSA ST STEPHENS GREENE.

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 PA1150210 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 BCWSA ST STEPHENS GREENE 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
2021 2,3,7,8-TCDD MR 2 SDWIS / PA1150210 / 2063
2016 Revised Total Coliform Rule RPT 1 SDWIS / PA1150210 / 8000
2015 Groundwater Rule MR 4 SDWIS / PA1150210 / 0700
2013 1,2,4-Trichlorobenzene MR 9 SDWIS / PA1150210 / 2378
2013 cis-1,2-Dichloroethylene MR 9 SDWIS / PA1150210 / 2380
2013 p-Dichlorobenzene MR 9 SDWIS / PA1150210 / 2969
2013 1,1-Dichloroethylene MR 9 SDWIS / PA1150210 / 2977
2013 trans-1,2-Dichloroethylene MR 9 SDWIS / PA1150210 / 2979
2013 1,2-Dichloroethane MR 9 SDWIS / PA1150210 / 2980
2013 Carbon tetrachloride MR 9 SDWIS / PA1150210 / 2982
2013 Toluene MR 9 SDWIS / PA1150210 / 2991
2013 Styrene MR 9 SDWIS / PA1150210 / 2996
2013 Xylenes, Total MR 9 SDWIS / PA1150210 / 2955
2013 DICHLOROMETHANE MR 9 SDWIS / PA1150210 / 2964
2013 1,1,1-Trichloroethane MR 9 SDWIS / PA1150210 / 2981

How BCWSA ST STEPHENS GREENE Compares

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

Metric BCWSA ST STEPHENS GREENE Pennsylvania avg Federal benchmark
Total violations 260 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 130 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 BCWSA ST STEPHENS GREENE water safe to drink? ▼
BCWSA ST STEPHENS GREENE (PWS ID: PA1150210) has 260 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 130 people using Groundwater sources.
How many people does BCWSA ST STEPHENS GREENE serve? ▼
BCWSA ST STEPHENS GREENE serves 130 people in WARRINGTON, Pennsylvania. It is a Local-owned system using Groundwater water sources with 34 service connections.
What type of violations does BCWSA ST STEPHENS GREENE have? ▼
BCWSA ST STEPHENS GREENE has 260 total violations: 0 health-based violations (MCL exceedances or treatment failures), 242 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in BCWSA ST STEPHENS GREENE water? ▼
No PFAS testing data is available for BCWSA ST STEPHENS GREENE under the EPA's UCMR5 monitoring program.
What water source does BCWSA ST STEPHENS GREENE use? ▼
BCWSA ST STEPHENS GREENE 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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