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BARR BUILDING

PWS ID: PA1150625 · EXTON, Pennsylvania 19341

BARR BUILDING serves 30 people in EXTON, Pennsylvania using Groundwater water sources. It has 69 recorded EPA violations, including 6 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: BARR BUILDING

BARR BUILDING is a private-owned non-transient non-community water system that delivers drinking water to 30 residents in EXTON, Pennsylvania (Chester County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 69 total violations for this system , of which 6 (9%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 62 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Chlorine, recorded in 7 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. BARR BUILDING's 69 violations sit below 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
30
Total Violations
69
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
1
County
Chester
School/Daycare
No
MCL Violations
6
Monitoring Violations
62
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 7 2018
Coliform (TCR) MCL 6 1999
Coliform (TCR) MR 3 2003
Endrin MR 2 2016
Diquat MR 2 2016
Dalapon MR 2 2016
Endothall MR 2 2016
OXAMYL MR 2 2016
Dinoseb MR 2 2016
LASSO MR 2 2016
2,3,7,8-TCDD MR 2 2016
Heptachlor MR 2 2016
2,4-D MR 2 2016
Pentachlorophenol MR 2 2016
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2016
ETHYLENE DIBROMIDE MR 2 2016
Chlordane MR 2 2016
Toxaphene MR 2 2016
Picloram MR 2 2016
Total Polychlorinated Biphenyls (PCB) MR 2 2016
Carbofuran MR 2 2016
Methoxychlor MR 2 2016
BHC-GAMMA MR 2 2016
2,4,5-TP MR 2 2016
Fluoride MR 2 2003
Lead and Copper Rule MR 2 2013
HEXACHLOROBENZENE MR 2 2016
Heptachlor epoxide MR 2 2016
Hexachlorocyclopentadiene MR 2 2016
Revised Total Coliform Rule RPT 1 2016

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 BARR BUILDING.

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 PA1150625 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 BARR BUILDING 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
2018 Chlorine MR 7 SDWIS / PA1150625 / 0999
2016 Endrin MR 2 SDWIS / PA1150625 / 2005
2016 Diquat MR 2 SDWIS / PA1150625 / 2032
2016 Dalapon MR 2 SDWIS / PA1150625 / 2031
2016 Endothall MR 2 SDWIS / PA1150625 / 2033
2016 OXAMYL MR 2 SDWIS / PA1150625 / 2036
2016 Dinoseb MR 2 SDWIS / PA1150625 / 2041
2016 LASSO MR 2 SDWIS / PA1150625 / 2051
2016 2,3,7,8-TCDD MR 2 SDWIS / PA1150625 / 2063
2016 Heptachlor MR 2 SDWIS / PA1150625 / 2065
2016 2,4-D MR 2 SDWIS / PA1150625 / 2105
2016 Pentachlorophenol MR 2 SDWIS / PA1150625 / 2326
2016 1,2-DIBROMO-3-CHLOROPROPANE MR 2 SDWIS / PA1150625 / 2931
2016 ETHYLENE DIBROMIDE MR 2 SDWIS / PA1150625 / 2946
2016 Chlordane MR 2 SDWIS / PA1150625 / 2959

How BARR BUILDING Compares

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

Metric BARR BUILDING Pennsylvania avg Federal benchmark
Total violations 69 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 6 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 30 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 BARR BUILDING water safe to drink? ▼
BARR BUILDING (PWS ID: PA1150625) has 69 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 30 people using Groundwater sources.
How many people does BARR BUILDING serve? ▼
BARR BUILDING serves 30 people in EXTON, Pennsylvania. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does BARR BUILDING have? ▼
BARR BUILDING has 69 total violations: 6 health-based violations (MCL exceedances or treatment failures), 62 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in BARR BUILDING water? ▼
No PFAS testing data is available for BARR BUILDING under the EPA's UCMR5 monitoring program.
What water source does BARR BUILDING use? ▼
BARR BUILDING uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial