Public water system · PA4070023
ActiveAltoona Water Authority
At a glance
Altoona Water Authority (PWSID PA4070023) is an active community water system in Blair County, Pennsylvania. It reports serving 62,500 people through 23,379 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, 3 are health-based, and the most recent began in May 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
62,500
Service connections
23,379
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Altoona Water Authority compare with other water systems in Blair County?
By EPA's size categories, Altoona Water Authority is a large system (10,001 to 100,000 people). Blair County has 50 active public water systems, and Altoona Water Authority is the largest of them by population served. Its population served is about 31 times the county average of 2,032 people per system, and accounts for 62% 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 Altoona Water Authority is about 9.3 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 Altoona Water Authority?
EPA lists Altoona Water Authority 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 Altoona Water Authority have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 2026. The violations listed here began between January 2025 and May 2026. By type: 5 monitoring and reporting, 3 public notice, recordkeeping or other, 3 required treatment not met and 1 reporting. The contaminant or rule involved most often is Bromate (4 of them). EPA lists 10 as resolved, 1 as unaddressed 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2026-05-04 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2026-03-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Long Term 2 Enhanced Surface Water Treatment Rulecode 0800 | Yes | Archived |
| 2025-09-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-09-23 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-08-13 | Required treatment not metTreatment Technique, Level 2 Assessment (RTCR) · code 2B | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2025-08-13 | Required treatment not metTreatment Technique, Level 1 Assessment (RTCR) · code 2A | Revised Total Coliform Rulecode 8000 | Yes | Resolved |
| 2025-08-13 | ReportingNotify Level 1/Level 2 Treatment Technique Violation, Correct Action (RTCR) · code 4F | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Carbon, totalcode 2920 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Bromatecode 1011 | 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.
Altoona Water Authority: frequently asked questions
Who runs Altoona Water Authority?
Altoona Water Authority (PWSID PA4070023) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Altoona Water Authority serve?
Altoona Water Authority reports serving 62,500 people through 23,379 service connections in Blair County, Pennsylvania.
Where does Altoona Water Authority 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 Altoona Water Authority have any drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in May 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 Altoona Water Authority'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, 3 are health-based, and the most recent began in May 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 Altoona Water Authority's water quality report?
As a community water system, Altoona Water Authority 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 |
|---|---|---|---|---|
| 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 |
| Martinsburg Muni Auth | Blair | 3,160 | Community | Groundwater |
| 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, “Altoona Water Authority, PWSID PA4070023, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/altoona-water-authority-pa4070023 (data as of October 1, 2026).