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MT UNION MUNICIPAL AUTH

PWS ID: PA4310016 · MOUNT UNION, Pennsylvania 17066

MT UNION MUNICIPAL AUTH serves 5,801 people in MOUNT UNION, Pennsylvania using Surface Water water sources. It has 1,512 recorded EPA violations, including 127 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MT UNION MUNICIPAL AUTH

MT UNION MUNICIPAL AUTH is a local-owned community water system that delivers drinking water to 5,801 residents in MOUNT UNION, Pennsylvania (Huntingdon County) through 2,043 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 1,512 total violations for this system , of which 127 (8%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1,173 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 Public Notice, recorded in 181 violations (Other). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. MT UNION MUNICIPAL AUTH's 1,512 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
5,801
Total Violations
1,512
Health-Based Violations
127
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,043
County
Huntingdon
School/Daycare
No
MCL Violations
24
Monitoring Violations
1,173
Treatment Tech Violations
103

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Public Notice Other 181 2024
Surface Water Treatment Rule TT 103 2018
Surface Water Treatment Rule MR 92 2024
Total Polychlorinated Biphenyls (PCB) MR 53 2019
2,3,7,8-TCDD MR 50 2019
Groundwater Rule MR 39 2025
Chlorine MR 37 2018
Interim Enhanced Surface Water Treatment Rule MR 35 2024
Carbofuran MR 18 2019
Nitrate MR 18 2022
OXAMYL MR 18 2019
Coliform (TCR) MCL 17 2011
1,2,4-Trichlorobenzene MR 17 2019
Xylenes, Total MR 17 2019
DICHLOROMETHANE MR 17 2019
p-Dichlorobenzene MR 17 2019
1,1-Dichloroethylene MR 17 2019
trans-1,2-Dichloroethylene MR 17 2019
1,1,1-Trichloroethane MR 17 2019
1,2-Dichloropropane MR 17 2019
Trichloroethylene MR 17 2019
Benzene MR 17 2019
Toluene MR 17 2019
Styrene MR 17 2019
o-Dichlorobenzene MR 17 2019
1,2-Dichloroethane MR 17 2019
1,1,2-Trichloroethane MR 17 2019
Tetrachloroethylene MR 17 2019
Ethylbenzene MR 17 2019
Carbon tetrachloride MR 17 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 360 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 8/20/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 8/20/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 8/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
lithium 8/20/2024 <9 µg/L 9 µg/L Not Detected
PFHpS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 8/20/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
ADONA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/20/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/20/2024 <9 µg/L 9 µg/L Not Detected
6:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFBA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 8/20/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 8/20/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 8/20/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 8/20/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 8/20/2024 <0.008 µg/L 0.008 µg/L Not Detected
4:2 FTS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 8/20/2024 <0.003 µg/L 0.003 µg/L Not Detected

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 MT UNION MUNICIPAL 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 PA4310016 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 MT UNION MUNICIPAL 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
2025 Groundwater Rule MR 39 SDWIS / PA4310016 / 0700
2024 Public Notice Other 181 SDWIS / PA4310016 / 7500
2024 Surface Water Treatment Rule MR 92 SDWIS / PA4310016 / 0200
2024 Interim Enhanced Surface Water Treatment Rule MR 35 SDWIS / PA4310016 / 0300
2024 TTHM MCL 7 SDWIS / PA4310016 / 2950
2023 Total Haloacetic Acids (HAA5) MR 14 SDWIS / PA4310016 / 2456
2022 Nitrate MR 18 SDWIS / PA4310016 / 1040
2022 Nitrite MR 5 SDWIS / PA4310016 / 1041
2021 Barium MR 5 SDWIS / PA4310016 / 1010
2021 Cadmium MR 5 SDWIS / PA4310016 / 1015
2021 Chromium MR 5 SDWIS / PA4310016 / 1020
2021 Fluoride MR 5 SDWIS / PA4310016 / 1025
2021 Mercury MR 5 SDWIS / PA4310016 / 1035
2021 Nickel MR 5 SDWIS / PA4310016 / 1036
2021 Selenium MR 5 SDWIS / PA4310016 / 1045

How MT UNION MUNICIPAL AUTH Compares

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

Metric MT UNION MUNICIPAL AUTH Pennsylvania avg Federal benchmark
Total violations 1,512 150.6 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 127 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 5,801 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 MT UNION MUNICIPAL AUTH water safe to drink? ▼
MT UNION MUNICIPAL AUTH (PWS ID: PA4310016) has 1512 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 5,801 people using Surface Water sources.
How many people does MT UNION MUNICIPAL AUTH serve? ▼
MT UNION MUNICIPAL AUTH serves 5,801 people in MOUNT UNION, Pennsylvania. It is a Local-owned system using Surface Water water sources with 2,043 service connections.
What type of violations does MT UNION MUNICIPAL AUTH have? ▼
MT UNION MUNICIPAL AUTH has 1,512 total violations: 127 health-based violations (MCL exceedances or treatment failures), 1,173 monitoring/reporting violations, and 103 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MT UNION MUNICIPAL AUTH water? ▼
No. MT UNION MUNICIPAL AUTH was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does MT UNION MUNICIPAL AUTH use? ▼
MT UNION MUNICIPAL AUTH uses Surface Water 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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 Kiznis Studio Editorial