Public water system · PA4190011
ActiveCatawissa Municipal Water Auth
At a glance
Catawissa Municipal Water Auth (PWSID PA4190011) is an active community water system in Columbia County, Pennsylvania. It reports serving 1,644 people through 608 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 May 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,644
Service connections
608
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Catawissa Municipal Water Auth compare with other water systems in Columbia County?
By EPA's size categories, Catawissa Municipal Water Auth is a small system (501 to 3,300 people). Columbia County has 87 active public water systems, and Catawissa Municipal Water Auth is the 5th-largest of them by population served. Its population served is about 121% above the county average of 744 people per system, and accounts for 2.5% of the 64,697 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 Catawissa Municipal Water 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. 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 Catawissa Municipal Water Auth?
EPA lists Catawissa Municipal Water 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. 8 of the 87 active systems in Columbia County (9.2%) are also owned by a local government.
Does Catawissa Municipal Water 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 May 2023. The violations listed here began between October 2020 and May 2023. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Radium-226 (3 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 |
|---|---|---|---|---|
| 2023-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Unfilt/GWR) · code 31 | Groundwater Rulecode 0700 | No | Resolved |
| 2021-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2021-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2021-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | 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.
Catawissa Municipal Water Auth: frequently asked questions
Who runs Catawissa Municipal Water Auth?
Catawissa Municipal Water Auth (PWSID PA4190011) is a community water system owned by a local government. It is regulated by the PA state drinking water program.
How many people does Catawissa Municipal Water Auth serve?
Catawissa Municipal Water Auth reports serving 1,644 people through 608 service connections in Columbia County, Pennsylvania.
Where does Catawissa Municipal Water 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 Catawissa Municipal Water 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 May 2023. 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 Catawissa Municipal Water 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 May 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the PA state drinking water program.
Where can I find Catawissa Municipal Water Auth's water quality report?
As a community water system, Catawissa Municipal Water 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 Columbia County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Veolia Water Pa Inc. Bloomsburg | Columbia | 29,382 | Community | Surface water |
| Pa American Water Berwick | Columbia | 15,282 | Community | Groundwater |
| Knoebels Grove Park | Columbia | 4,000 | Non-transient non-community | Groundwater |
| Southern Columbia Area School | Columbia | 1,650 | Non-transient non-community | Groundwater |
| Benton Municipal Water Auth | Columbia | 1,333 | Community | Groundwater under influence of surface water |
| Aqua Pa Mifflin Township | Columbia | 1,220 | 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, “Catawissa Municipal Water Auth, PWSID PA4190011, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/catawissa-municipal-water-auth-pa4190011 (data as of October 1, 2026).