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THOMPSONTOWN MUNI AUTH

PWS ID: PA4340007 · THOMPSONTOWN, Pennsylvania 17094

THOMPSONTOWN MUNI AUTH serves 1,000 people in THOMPSONTOWN, Pennsylvania using Groundwater water sources. It has 435 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: THOMPSONTOWN MUNI AUTH

THOMPSONTOWN MUNI AUTH is a local-owned community water system that delivers drinking water to 1,000 residents in THOMPSONTOWN, Pennsylvania (Juniata County) through 358 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 435 total violations for this system , of which 1 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 402 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is cis-1,2-Dichloroethylene, recorded in 16 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. THOMPSONTOWN MUNI AUTH's 435 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
1,000
Total Violations
435
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
358
County
Juniata
School/Daycare
No
MCL Violations
1
Monitoring Violations
402
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
cis-1,2-Dichloroethylene MR 16 2020
Xylenes, Total MR 16 2020
o-Dichlorobenzene MR 16 2020
1,1-Dichloroethylene MR 16 2020
trans-1,2-Dichloroethylene MR 16 2020
1,1,1-Trichloroethane MR 16 2020
Carbon tetrachloride MR 16 2020
1,2-Dichloropropane MR 16 2020
Trichloroethylene MR 16 2020
1,1,2-Trichloroethane MR 16 2020
Tetrachloroethylene MR 16 2020
CHLOROBENZENE MR 16 2020
Benzene MR 16 2020
Styrene MR 16 2020
1,2,4-Trichlorobenzene MR 16 2020
DICHLOROMETHANE MR 16 2020
Toluene MR 16 2020
Ethylbenzene MR 16 2020
p-Dichlorobenzene MR 16 2020
1,2-Dichloroethane MR 16 2020
Nitrate MR 12 2019
Nitrite MR 8 2019
CYANIDE MR 8 2024
Consumer Confidence Rule Other 7 2021
Toxaphene MR 5 2011
Chlordane MR 4 2011
Gross Alpha, Excl. Radon and U MR 4 2015
Radium-226 MR 4 2015
Radium-228 MR 4 2015
2,3,7,8-TCDD MR 4 2020

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 THOMPSONTOWN MUNI AUTH.

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 PA4340007 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 THOMPSONTOWN MUNI AUTH 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
2024 CYANIDE MR 8 SDWIS / PA4340007 / 1024
2024 Arsenic MR 4 SDWIS / PA4340007 / 1005
2023 Pentachlorophenol MR 2 SDWIS / PA4340007 / 2326
2022 Groundwater Rule MR 4 SDWIS / PA4340007 / 0700
2021 Consumer Confidence Rule Other 7 SDWIS / PA4340007 / 7000
2020 cis-1,2-Dichloroethylene MR 16 SDWIS / PA4340007 / 2380
2020 Xylenes, Total MR 16 SDWIS / PA4340007 / 2955
2020 o-Dichlorobenzene MR 16 SDWIS / PA4340007 / 2968
2020 1,1-Dichloroethylene MR 16 SDWIS / PA4340007 / 2977
2020 trans-1,2-Dichloroethylene MR 16 SDWIS / PA4340007 / 2979
2020 1,1,1-Trichloroethane MR 16 SDWIS / PA4340007 / 2981
2020 Carbon tetrachloride MR 16 SDWIS / PA4340007 / 2982
2020 1,2-Dichloropropane MR 16 SDWIS / PA4340007 / 2983
2020 Trichloroethylene MR 16 SDWIS / PA4340007 / 2984
2020 1,1,2-Trichloroethane MR 16 SDWIS / PA4340007 / 2985

How THOMPSONTOWN MUNI AUTH Compares

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

Metric THOMPSONTOWN MUNI AUTH Pennsylvania avg Federal benchmark
Total violations 435 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 1 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 1,000 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 THOMPSONTOWN MUNI AUTH water safe to drink? ▼
THOMPSONTOWN MUNI AUTH (PWS ID: PA4340007) has 435 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,000 people using Groundwater sources.
How many people does THOMPSONTOWN MUNI AUTH serve? ▼
THOMPSONTOWN MUNI AUTH serves 1,000 people in THOMPSONTOWN, Pennsylvania. It is a Local-owned system using Groundwater water sources with 358 service connections.
What type of violations does THOMPSONTOWN MUNI AUTH have? ▼
THOMPSONTOWN MUNI AUTH has 435 total violations: 1 health-based violations (MCL exceedances or treatment failures), 402 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in THOMPSONTOWN MUNI AUTH water? ▼
No PFAS testing data is available for THOMPSONTOWN MUNI AUTH under the EPA's UCMR5 monitoring program.
What water source does THOMPSONTOWN MUNI AUTH use? ▼
THOMPSONTOWN MUNI AUTH 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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