Public water system · PA4070030
ActiveMartinsburg Muni Auth
At a glance
Martinsburg Muni Auth (PWSID PA4070030) is an active community water system in Blair County, Pennsylvania. It reports serving 3,160 people through 1,278 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, 2 are health-based, and the most recent began in June 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,160
Service connections
1,278
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Martinsburg Muni Auth compare with other water systems in Blair County?
By EPA's size categories, Martinsburg Muni Auth is a small system (501 to 3,300 people). Blair County has 50 active public water systems, and Martinsburg Muni Auth is the 6th-largest of them by population served. Its population served is about 56% above the county average of 2,032 people per system, and accounts for 3.1% of the 101,604 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 Martinsburg Muni Auth is about half of 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 Martinsburg Muni Auth?
EPA lists Martinsburg 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. 14 of the 50 active systems in Blair County (28%) are also owned by a local government.
Does Martinsburg Muni Auth have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in June 2025. The violations listed here began between July 2007 and June 2025. By type: 10 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (4 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 |
|---|---|---|---|---|
| 2025-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Atrazinecode 2050 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2018-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Resolved |
| 2017-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2011-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitratecode 1040 | Yes | Resolved |
| 2011-01-01 | Monitoring and reportingMonitoring, Check/Repeat/Confirmation · code 04 | Nitratecode 1040 | No | Resolved |
| 2009-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Nitratecode 1040 | Yes | Resolved |
| 2007-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | 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.
Martinsburg Muni Auth: frequently asked questions
Who runs Martinsburg Muni Auth?
Martinsburg Muni Auth (PWSID PA4070030) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Martinsburg Muni Auth serve?
Martinsburg Muni Auth reports serving 3,160 people through 1,278 service connections in Blair County, Pennsylvania.
Where does Martinsburg 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 Martinsburg Muni Auth have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in June 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 Martinsburg 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, 2 are health-based, and the most recent began in June 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 Martinsburg Muni Auth's water quality report?
As a community water system, Martinsburg 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 Blair County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Altoona Water Authority | Blair | 62,500 | Community | Surface water |
| Hollidaysburg Muni Auth | Blair | 8,523 | Community | Purchased surface water |
| Tyrone Boro Water Auth | Blair | 6,500 | Community | Surface water |
| Roaring Spring Muni Water Auth | Blair | 3,182 | Community | Groundwater |
| Bellwood Boro Auth | Blair | 3,162 | Community | Purchased surface water |
| Blair Twp Water & Sewer Auth | Blair | 2,550 | 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, “Martinsburg Muni Auth, PWSID PA4070030, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/martinsburg-muni-auth-pa4070030 (data as of October 1, 2026).