Public water system · PA4110077
ActiveBlacklick Valley Muni Auth
At a glance
Blacklick Valley Muni Auth (PWSID PA4110077) is an active community water system in Cambria County, Pennsylvania. It reports serving 1,650 people through 763 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,650
Service connections
763
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Blacklick Valley Muni Auth compare with other water systems in Cambria County?
By EPA's size categories, Blacklick Valley Muni Auth is a small system (501 to 3,300 people). Cambria County has 65 active public water systems. Its population served is about 24% below the county average of 2,176 people per system, and accounts for 1.2% of the 141,432 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 Blacklick Valley 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 244 Pennsylvania systems (3.4%) list purchased surface water as their primary source.
Who owns and regulates Blacklick Valley Muni Auth?
EPA lists Blacklick Valley 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. 31 of the 65 active systems in Cambria County (48%) are also owned by a local government.
Does Blacklick Valley Muni Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 2025. The violations listed here began between January 2020 and November 2025. By type: 5 public notice, recordkeeping or other, 4 contaminant level above the legal limit, 2 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Public Notice (5 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-11-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-10-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Resolved |
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-02-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2020-10-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-08-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2020-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2020-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2020-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
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.
Blacklick Valley Muni Auth: frequently asked questions
Who runs Blacklick Valley Muni Auth?
Blacklick Valley Muni Auth (PWSID PA4110077) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Blacklick Valley Muni Auth serve?
Blacklick Valley Muni Auth reports serving 1,650 people through 763 service connections in Cambria County, Pennsylvania.
Where does Blacklick Valley Muni Auth get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Blacklick Valley Muni Auth have any drinking water violations?
Of the 12 most recent violations in EPA's records, 5 are health-based, and the most recent began in November 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 Blacklick Valley 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, 5 are health-based, and the most recent began in November 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 Blacklick Valley Muni Auth's water quality report?
As a community water system, Blacklick Valley 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 Cambria County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Greater Johnstown Wa Riverside | Cambria | 49,500 | Community | Surface water |
| Highland S & W Auth Beaverdam | Cambria | 22,617 | Community | Surface water |
| Ebensburg Boro Muni Auth | Cambria | 8,500 | Community | Surface water |
| Portage Boro Muni Auth | Cambria | 6,500 | Community | Surface water |
| Northern Cambria Muni Water | Cambria | 4,500 | Community | Groundwater under influence of surface water |
| Southwestern Cambria Cnty Auth | Cambria | 4,400 | 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, “Blacklick Valley Muni Auth, PWSID PA4110077, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/blacklick-valley-muni-auth-pa4110077 (data as of October 1, 2026).