Public water system · PA4600012
ActiveMifflinburg Boro Water Dept
At a glance
Mifflinburg Boro Water Dept (PWSID PA4600012) is an active community water system in Union County, Pennsylvania. It reports serving 3,690 people through 1,626 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 February 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,690
Service connections
1,626
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Mifflinburg Boro Water Dept compare with other water systems in Union County?
By EPA's size categories, Mifflinburg Boro Water Dept is a medium system (3,301 to 10,000 people). Union County has 37 active public water systems, and Mifflinburg Boro Water Dept is the largest of them by population served. Its population served is about 16 times the county average of 238 people per system, and accounts for 42% of the 8,788 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 Mifflinburg Boro Water Dept is about 45% 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. 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 Mifflinburg Boro Water Dept?
EPA lists Mifflinburg Boro Water Dept 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. 4 of the 37 active systems in Union County (11%) are also owned by a local government.
Does Mifflinburg Boro Water Dept have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in February 2025. The violations listed here began between January 2021 and February 2025. By type: 12 monitoring and reporting. 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 |
|---|---|---|---|---|
| 2025-02-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2022-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2022-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2022-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2021-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-01-01 | 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.
Mifflinburg Boro Water Dept: frequently asked questions
Who runs Mifflinburg Boro Water Dept?
Mifflinburg Boro Water Dept (PWSID PA4600012) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Mifflinburg Boro Water Dept serve?
Mifflinburg Boro Water Dept reports serving 3,690 people through 1,626 service connections in Union County, Pennsylvania.
Where does Mifflinburg Boro Water Dept 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 Mifflinburg Boro Water Dept 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 February 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 Mifflinburg Boro Water Dept'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 February 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 Mifflinburg Boro Water Dept's water quality report?
As a community water system, Mifflinburg Boro Water Dept 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 Union County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New Berlin Municipal Authority | Union | 990 | Community | Groundwater |
| Hidden Valley Camping Resort | Union | 600 | Transient non-community | Groundwater |
| Pine Valley Mobile Home Court | Union | 425 | Community | Groundwater |
| R B Winter State Park | Union | 400 | Transient non-community | Groundwater |
| Nittany Mountain Koa | Union | 350 | Transient non-community | Groundwater |
| West Buffalo Twp Mun Auth | Union | 333 | 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, “Mifflinburg Boro Water Dept, PWSID PA4600012, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/mifflinburg-boro-water-dept-pa4600012 (data as of October 1, 2026).