Public water system · PA4340007
ActiveThompsontown Muni Auth
At a glance
Thompsontown Muni Auth (PWSID PA4340007) is an active community water system in Juniata County, Pennsylvania. It reports serving 1,000 people through 358 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,000
Service connections
358
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Thompsontown Muni Auth compare with other water systems in Juniata County?
By EPA's size categories, Thompsontown Muni Auth is a small system (501 to 3,300 people). Juniata County has 38 active public water systems, and Thompsontown Muni Auth is the 2nd-largest of them by population served. Its population served is about 172% above the county average of 368 people per system, and accounts for 7.1% of the 13,989 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 Thompsontown Muni Auth is well 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,632 Pennsylvania systems (92%) list groundwater as their primary source.
Who owns and regulates Thompsontown Muni Auth?
EPA lists Thompsontown Muni 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. 6 of the 38 active systems in Juniata County (16%) are also owned by a local government.
Does Thompsontown Muni Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2024. The violations listed here began between January 2020 and January 2024. By type: 11 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Arsenic (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 |
|---|---|---|---|---|
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cyanidecode 1024 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Pentachlorophenolcode 2326 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2021-12-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2021-12-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2021-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | 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.
Thompsontown Muni Auth: frequently asked questions
Who runs Thompsontown Muni Auth?
Thompsontown Muni Auth (PWSID PA4340007) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Thompsontown Muni Auth serve?
Thompsontown Muni Auth reports serving 1,000 people through 358 service connections in Juniata County, Pennsylvania.
Where does Thompsontown Muni Auth get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Thompsontown Muni Auth have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2024. 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 Thompsontown Muni 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, none is health-based, and the most recent began in January 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Thompsontown Muni Auth's water quality report?
As a community water system, Thompsontown Muni 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 Juniata County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mifflintown Muni Auth | Juniata | 4,450 | Community | Surface water |
| Richfield Area Joint Auth | Juniata | 1,000 | Community | Groundwater |
| Port Royal Muni Auth | Juniata | 950 | Community | Groundwater |
| Mcalisterville Area Joint Auth | Juniata | 850 | Community | Groundwater under influence of surface water |
| W E Schlegel Inc. | Juniata | 750 | Transient non-community | Groundwater |
| East Juniata High Sch | Juniata | 680 | Non-transient non-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, “Thompsontown Muni Auth, PWSID PA4340007, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/thompsontown-muni-auth-pa4340007 (data as of October 1, 2026).