Public water system · PA4310016
ActiveMt Union Municipal Auth
At a glance
Mt Union Municipal Auth (PWSID PA4310016) is an active community water system in Huntingdon County, Pennsylvania. It reports serving 5,801 people through 2,043 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,801
Service connections
2,043
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Mt Union Municipal Auth compare with other water systems in Huntingdon County?
By EPA's size categories, Mt Union Municipal Auth is a medium system (3,301 to 10,000 people). Huntingdon County has 86 active public water systems, and Mt Union Municipal Auth is the 2nd-largest of them by population served. Its population served is about 12 times the county average of 470 people per system, and accounts for 14% of the 40,410 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active community water system reports serving 6,703 people, so Mt Union Municipal Auth is about 13% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Pennsylvania has 1,762 active community water systems, 24% of the state's 7,217 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 246 Pennsylvania systems (3.4%) list surface water as their primary source.
Who owns and regulates Mt Union Municipal Auth?
EPA lists Mt Union Municipal Auth as owned by a local government. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 19 of the 86 active systems in Huntingdon County (22%) are also owned by a local government.
Does Mt Union Municipal Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2025. The violations listed here began between January 2022 and April 2025. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Groundwater Rule (2 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-08-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2024-03-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-10-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2023-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Mt Union Municipal Auth: frequently asked questions
Who runs Mt Union Municipal Auth?
Mt Union Municipal Auth (PWSID PA4310016) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Mt Union Municipal Auth serve?
Mt Union Municipal Auth reports serving 5,801 people through 2,043 service connections in Huntingdon County, Pennsylvania.
Where does Mt Union Municipal Auth get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Mt Union Municipal Auth have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Mt Union Municipal Auth's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in April 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Mt Union Municipal Auth's water quality report?
As a community water system, Mt Union Municipal Auth must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Huntingdon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Huntingdon Boro Water Dept | Huntingdon | 13,776 | Community | Surface water |
| St Correct Inst Huntingdon | Huntingdon | 2,200 | Community | Purchased surface water |
| Martins Gen Store | Huntingdon | 1,500 | Transient non-community | Groundwater |
| Walker Twp Muni Auth | Huntingdon | 1,450 | Community | Groundwater |
| Orbisonia Rockhill Jt Mun Auth | Huntingdon | 1,200 | Community | Groundwater |
| Mill Creek Area Mun Auth | Huntingdon | 1,108 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Mt Union Municipal Auth, PWSID PA4310016, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/mt-union-municipal-auth-pa4310016 (data as of October 1, 2026).