Public water system · PA4550005
ActiveSelinsgrove Muni Auth
At a glance
Selinsgrove Muni Auth (PWSID PA4550005) is an active community water system in Snyder County, Pennsylvania. It reports serving 5,584 people through 1,971 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 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,584
Service connections
1,971
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Selinsgrove Muni Auth compare with other water systems in Snyder County?
By EPA's size categories, Selinsgrove Muni Auth is a medium system (3,301 to 10,000 people). Snyder County has 45 active public water systems, and Selinsgrove Muni Auth is the largest of them by population served. Its population served is about 11 times the county average of 519 people per system, and accounts for 24% of the 23,360 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 Selinsgrove Muni Auth is about 17% 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 Selinsgrove Muni Auth?
EPA lists Selinsgrove 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. 13 of the 45 active systems in Snyder County (29%) are also owned by a local government.
Does Selinsgrove 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 2026. The violations listed here began between January 2017 and January 2026. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 2 monitoring. The contaminant or rule involved most often is Groundwater Rule (4 of them). EPA lists 11 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-03-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2023-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-08-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2023-08-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-05-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Archived |
| 2017-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | 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.
Selinsgrove Muni Auth: frequently asked questions
Who runs Selinsgrove Muni Auth?
Selinsgrove Muni Auth (PWSID PA4550005) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Selinsgrove Muni Auth serve?
Selinsgrove Muni Auth reports serving 5,584 people through 1,971 service connections in Snyder County, Pennsylvania.
Where does Selinsgrove 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 Selinsgrove 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 2026. 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 Selinsgrove 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 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Selinsgrove Muni Auth's water quality report?
As a community water system, Selinsgrove 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 Snyder County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aqua Pa Monroe Twp | Snyder | 2,400 | Community | Groundwater |
| Shamokin Dam Borough | Snyder | 1,700 | Community | Surface water |
| Middleburg Municipal Authority | Snyder | 1,600 | Community | Surface water |
| Selinsgrove Center | Snyder | 1,000 | Community | Groundwater under influence of surface water |
| Kreamer Mun Auth | Snyder | 980 | Community | Groundwater |
| Beavertown Municipal Authority | Snyder | 935 | 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, “Selinsgrove Muni Auth, PWSID PA4550005, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/selinsgrove-muni-auth-pa4550005 (data as of October 1, 2026).