Public water system · PA4070058
ActiveGreenfield Twp Muni Auth
At a glance
Greenfield Twp Muni Auth (PWSID PA4070058) is an active community water system in Blair County, Pennsylvania. It reports serving 2,500 people through 790 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, none is health-based, and the most recent began in April 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,500
Service connections
790
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Greenfield Twp Muni Auth compare with other water systems in Blair County?
By EPA's size categories, Greenfield Twp Muni Auth is a small system (501 to 3,300 people). Blair County has 50 active public water systems. Its population served is about 23% above the county average of 2,032 people per system, and accounts for 2.5% 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 Greenfield Twp Muni Auth is about 63% 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. 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 Greenfield Twp Muni Auth?
EPA lists Greenfield 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. 14 of the 50 active systems in Blair County (28%) are also owned by a local government.
Does Greenfield 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 April 2024. The violations listed here began between April 2024 and April 2024. By type: 12 monitoring and reporting. The contaminants or rules involved are Heptachlor, Alachlor (Lasso), Hexachlorocyclopentadiene and Methoxychlor. 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 |
|---|---|---|---|---|
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Heptachlorcode 2065 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Alachlor (Lasso)code 2051 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Hexachlorocyclopentadienecode 2042 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Methoxychlorcode 2015 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endothallcode 2033 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Diquatcode 2032 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Oxamylcode 2036 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) adipatecode 2035 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endrincode 2005 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Lindane (gamma-BHC)code 2010 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 2,4-Dcode 2105 | 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.
Greenfield Twp Muni Auth: frequently asked questions
Who runs Greenfield Twp Muni Auth?
Greenfield Twp Muni Auth (PWSID PA4070058) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Greenfield Twp Muni Auth serve?
Greenfield Twp Muni Auth reports serving 2,500 people through 790 service connections in Blair County, Pennsylvania.
Where does Greenfield Twp 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 Greenfield 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 April 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 Greenfield 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 April 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 Greenfield Twp Muni Auth's water quality report?
As a community water system, Greenfield 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 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 |
| Martinsburg Muni Auth | Blair | 3,160 | Community | Groundwater |
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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, “Greenfield Twp Muni Auth, PWSID PA4070058, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/greenfield-twp-muni-auth-pa4070058 (data as of October 1, 2026).