Public water system · PA5020045
ActiveRobinson Twp Muni Auth
At a glance
Robinson Twp Muni Auth (PWSID PA5020045) is an active community water system in Allegheny County, Pennsylvania. It reports serving 16,354 people through 5,221 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 January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
16,354
Service connections
5,221
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Robinson Twp Muni Auth compare with other water systems in Allegheny County?
By EPA's size categories, Robinson Twp Muni Auth is a large system (10,001 to 100,000 people). Allegheny County has 65 active public water systems. Its population served is about half of the county average of 31,017 people per system, and accounts for 0.8% of the 2,016,109 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 Robinson Twp Muni Auth is about 144% above 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 Robinson Twp Muni Auth?
EPA lists Robinson Twp 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. 35 of the 65 active systems in Allegheny County (54%) are also owned by a local government.
Does Robinson Twp 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 July 2016 and January 2026. By type: 10 monitoring and reporting, 1 public notice, recordkeeping or other and 1 monitoring. The contaminant or rule involved most often is Carbon, total (5 of them). EPA lists 10 as resolved and 2 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 |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Archived |
| 2025-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Archived |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2024-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endothallcode 2033 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2019-12-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | 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.
Robinson Twp Muni Auth: frequently asked questions
Who runs Robinson Twp Muni Auth?
Robinson Twp Muni Auth (PWSID PA5020045) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Robinson Twp Muni Auth serve?
Robinson Twp Muni Auth reports serving 16,354 people through 5,221 service connections in Allegheny County, Pennsylvania.
Where does Robinson Twp Muni 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 Robinson Twp 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 Robinson Twp 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 Robinson Twp Muni Auth's water quality report?
As a community water system, Robinson Twp 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 Allegheny County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pa Amer Water Co-Pittsburgh | Allegheny | 686,000 | Community | Surface water |
| Pittsburgh Water & Sewer Auth | Allegheny | 520,000 | Community | Surface water |
| West View Water Authority | Allegheny | 200,000 | Community | Surface water |
| Wilkinsburg-Penn Jt Water Auth | Allegheny | 125,000 | Community | Surface water |
| Hampton Shaler Water Authority | Allegheny | 61,949 | Community | Purchased surface water |
| Monroeville Municipal Auth | Allegheny | 48,500 | 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, “Robinson Twp Muni Auth, PWSID PA5020045, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/robinson-twp-muni-auth-pa5020045 (data as of October 1, 2026).