Public water system · IN5215009
ActiveTri-Township Water Corporation
At a glance
Tri-Township Water Corporation (PWSID IN5215009) is an active community water system in Dearborn County, Indiana. It reports serving 10,435 people through 4,174 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2000.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
10,435
Service connections
4,174
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Tri-Township Water Corporation compare with other water systems in Dearborn County?
By EPA's size categories, Tri-Township Water Corporation is a large system (10,001 to 100,000 people). Dearborn County has 10 active public water systems, and Tri-Township Water Corporation is the largest of them by population served. Its population served is about 122% above the county average of 4,691 people per system, and accounts for 22% of the 46,909 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 Tri-Township Water Corporation is about 56% above 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 Tri-Township Water Corporation?
EPA lists Tri-Township Water Corporation 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. 8 of the 10 active systems in Dearborn County (80%) are also owned by a local government.
Does Tri-Township Water Corporation have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2000. The violations listed here began between June 1980 and October 2000. By type: 1 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminants or rules involved are Consumer Confidence Rule and Gross alpha (excluding radon and uranium). EPA lists 1 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2000-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1980-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 2 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.
Tri-Township Water Corporation: frequently asked questions
Who runs Tri-Township Water Corporation?
Tri-Township Water Corporation (PWSID IN5215009) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Tri-Township Water Corporation serve?
Tri-Township Water Corporation reports serving 10,435 people through 4,174 service connections in Dearborn County, Indiana.
Where does Tri-Township Water Corporation 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 Tri-Township Water Corporation have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2000. 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 Tri-Township Water Corporation'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 2 violations for this system; none is health-based, and the most recent began in October 2000. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Tri-Township Water Corporation's water quality report?
As a community water system, Tri-Township Water Corporation 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 Dearborn County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aurora Utilities | Dearborn | 6,415 | Community | Groundwater |
| North Dearborn Water Authority | Dearborn | 5,775 | Community | Groundwater |
| Valley Rural Utility Company | Dearborn | 5,529 | Community | Purchased groundwater |
| L-M-S Conservancy District | Dearborn | 5,375 | Community | Groundwater |
| City of Greendale Utilities | Dearborn | 5,092 | Community | Groundwater |
| Lawrenceburg Municipal Utilities | Dearborn | 5,000 | 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, “Tri-Township Water Corporation, PWSID IN5215009, Indiana”, https://aquacensus.com/water-systems/indiana/tri-township-water-corporation-in5215009 (data as of October 1, 2026).