Public water system · IN5216008
ActiveDecatur Co. Water Corp.
At a glance
Decatur Co. Water Corp. (PWSID IN5216008) is an active community water system in Decatur County, Indiana. It reports serving 3,440 people through 1,458 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,440
Service connections
1,458
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Decatur Co. Water Corp. compare with other water systems in Decatur County?
By EPA's size categories, Decatur Co. Water Corp. is a medium system (3,301 to 10,000 people). Decatur County has 17 active public water systems, and Decatur Co. Water Corp. is the 2nd-largest of them by population served. Its population served is about 157% above the county average of 1,341 people per system, and accounts for 15% 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 Decatur Co. Water Corp. is about half of 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 82 Indiana systems (2.1%) list purchased surface water as their primary source.
Who owns and regulates Decatur Co. Water Corp.?
EPA lists Decatur Co. Water Corp. 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 Decatur Co. Water Corp. have drinking water violations?
EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in December 2021. The violations listed here began between October 2001 and December 2021. By type: 5 monitoring and reporting, 4 contaminant level above the legal limit, 1 monitoring and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (5 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2021-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2021-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2021-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2021-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2004-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2001-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
All 11 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.
Decatur Co. Water Corp.: frequently asked questions
Who runs Decatur Co. Water Corp.?
Decatur Co. Water Corp. (PWSID IN5216008) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Decatur Co. Water Corp. serve?
Decatur Co. Water Corp. reports serving 3,440 people through 1,458 service connections in Decatur County, Indiana.
Where does Decatur Co. Water Corp. get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Decatur Co. Water Corp. have any drinking water violations?
EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in December 2021. 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 Decatur Co. Water Corp.'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. EPA's records list 11 violations for this system; 4 are health-based, and the most recent began in December 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Decatur Co. Water Corp.'s water quality report?
As a community water system, Decatur Co. Water Corp. 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 |
| Westport Water Company | Decatur | 1,725 | Community | Surface water |
| Lake Santee Rwwd | Decatur | 1,500 | Community | Surface water |
| St. Paul Municipal Water | Decatur | 1,096 | Community | Groundwater |
| 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, “Decatur Co. Water Corp., PWSID IN5216008, Indiana”, https://aquacensus.com/water-systems/indiana/decatur-co-water-corp-in5216008 (data as of October 1, 2026).