Public water system · IN5216004
ActiveSt. Paul Municipal Water
At a glance
St. Paul Municipal Water (PWSID IN5216004) is an active community water system in Decatur County, Indiana. It reports serving 1,096 people through 396 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, 3 are health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,096
Service connections
396
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does St. Paul Municipal Water compare with other water systems in Decatur County?
By EPA's size categories, St. Paul Municipal Water is a small system (501 to 3,300 people). Decatur County has 17 active public water systems, and St. Paul Municipal Water is the 5th-largest of them by population served. Its population served is about 18% below the county average of 1,341 people per system, and accounts for 4.8% of the 22,794 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so St. Paul Municipal Water 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. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates St. Paul Municipal Water?
EPA lists St. Paul Municipal Water as owned by a local government. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 6 of the 17 active systems in Decatur County (35%) are also owned by a local government.
Does St. Paul Municipal Water have drinking water violations?
Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in October 2025. The violations listed here began between January 2024 and October 2025. By type: 4 public notice, recordkeeping or other, 3 required treatment not met, 3 monitoring and 2 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 7 as resolved and 5 as unaddressed. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-07-31 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2025-07-31 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2024-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2024-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-05-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-04-26 | Required treatment not metTreatment Technique No Certif. Operator · code 12 | Stage 1 Disinfectants and Disinfection Byproducts Rulecode 0400 | Yes | Resolved |
| 2024-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | 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.
St. Paul Municipal Water: frequently asked questions
Who runs St. Paul Municipal Water?
St. Paul Municipal Water (PWSID IN5216004) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does St. Paul Municipal Water serve?
St. Paul Municipal Water reports serving 1,096 people through 396 service connections in Decatur County, Indiana.
Where does St. Paul Municipal Water 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 St. Paul Municipal Water 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 October 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 St. Paul Municipal Water'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 October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find St. Paul Municipal Water's water quality report?
As a community water system, St. Paul Municipal Water 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 Decatur County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Greensburg Municipal Water Works | Decatur | 12,650 | Community | Surface water |
| Decatur Co. Water Corp. | Decatur | 3,440 | Community | Purchased surface water |
| Westport Water Company | Decatur | 1,725 | Community | Surface water |
| Lake Santee Rwwd | Decatur | 1,500 | Community | Surface water |
| Westport Water Company - Cougar Road | Decatur | 933 | Non-transient non-community | Purchased surface water |
| Lions Camp Woodsmoke | Decatur | 500 | Transient non-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, “St. Paul Municipal Water, PWSID IN5216004, Indiana”, https://aquacensus.com/water-systems/indiana/st-paul-municipal-water-in5216004 (data as of October 1, 2026).