Public water system · PA5300017
ActiveSouthwestern Pa Water Auth
At a glance
Southwestern Pa Water Auth (PWSID PA5300017) is an active community water system in Greene County, Pennsylvania. It reports serving 40,200 people through 29,194 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, none is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
40,200
Service connections
29,194
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Southwestern Pa Water Auth compare with other water systems in Greene County?
By EPA's size categories, Southwestern Pa Water Auth is a large system (10,001 to 100,000 people). Greene County has 7 active public water systems, and Southwestern Pa Water Auth is the largest of them by population served. Its population served is about 6.1 times the county average of 6,639 people per system, and accounts for 86% of the 46,475 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 Southwestern Pa Water Auth is about 6 times 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 Southwestern Pa Water Auth?
EPA lists Southwestern Pa Water 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. 3 of the 7 active systems in Greene County (43%) are also owned by a local government.
Does Southwestern Pa Water 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 October 2024. The violations listed here began between November 2016 and October 2024. By type: 9 monitoring and reporting, 2 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (3 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 |
|---|---|---|---|---|
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2022-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2022-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Asbestoscode 1094 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2019-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2016-11-10 | 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.
Southwestern Pa Water Auth: frequently asked questions
Who runs Southwestern Pa Water Auth?
Southwestern Pa Water Auth (PWSID PA5300017) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Southwestern Pa Water Auth serve?
Southwestern Pa Water Auth reports serving 40,200 people through 29,194 service connections in Greene County, Pennsylvania.
Where does Southwestern Pa Water 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 Southwestern Pa Water 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 October 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 Southwestern Pa Water 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 October 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 Southwestern Pa Water Auth's water quality report?
As a community water system, Southwestern Pa Water 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 Greene County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pa American Dilliner System | Greene | 4,200 | Community | Surface water |
| Mt Morris Water & Sewage Auth | Greene | 1,500 | Community | Purchased surface water |
| Harvey Patterson Creek Portal | Greene | 500 | Non-transient non-community | Groundwater |
| Benamati Water Services LLC | Greene | 25 | Transient non-community | Purchased surface water |
| L&M Water Services LLC | Greene | 25 | Transient non-community | Purchased surface water |
| Higgins Hauling Company | Greene | 25 | Transient non-community | Purchased surface water |
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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, “Southwestern Pa Water Auth, PWSID PA5300017, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/southwestern-pa-water-auth-pa5300017 (data as of October 1, 2026).