Public water system · IN5279021
ActiveDayton Water Utility
At a glance
Dayton Water Utility (PWSID IN5279021) is an active community water system in Tippecanoe County, Indiana. It reports serving 1,420 people through 535 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,420
Service connections
535
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Dayton Water Utility compare with other water systems in Tippecanoe County?
By EPA's size categories, Dayton Water Utility is a small system (501 to 3,300 people). Tippecanoe County has 89 active public water systems, and Dayton Water Utility is the 5th-largest of them by population served. Its population served is about 28% below the county average of 1,976 people per system, and accounts for 0.8% of the 175,886 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 Dayton Water Utility 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 83 Indiana systems (2.1%) list purchased groundwater as their primary source.
Who owns and regulates Dayton Water Utility?
EPA lists Dayton Water Utility 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. 13 of the 89 active systems in Tippecanoe County (15%) are also owned by a local government.
Does Dayton Water Utility have drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2025. The violations listed here began between June 1989 and October 2025. By type: 5 public notice, recordkeeping or other, 3 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 7 as resolved, 1 as unaddressed 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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 |
|---|---|---|---|---|
| 2025-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2025-04-11 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Unaddressed |
| 2024-10-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-04-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2018-02-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2009-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2000-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1989-06-29 | Public notice, recordkeeping or otherSanitary Survey (TCR) · code 28 | Not reported | No | Archived |
All 9 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.
Dayton Water Utility: frequently asked questions
Who runs Dayton Water Utility?
Dayton Water Utility (PWSID IN5279021) is a community water system owned by a local government. It is regulated by the IN state drinking water program.
How many people does Dayton Water Utility serve?
Dayton Water Utility reports serving 1,420 people through 535 service connections in Tippecanoe County, Indiana.
Where does Dayton Water Utility get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Dayton Water Utility have any drinking water violations?
EPA's records list 9 violations for this system; none is 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 Dayton Water Utility'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 9 violations for this system; none is 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 Dayton Water Utility's water quality report?
As a community water system, Dayton Water Utility 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 Tippecanoe County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lafayette Water Works | Tippecanoe | 70,835 | Community | Groundwater |
| Purdue Univ. Water Works | Tippecanoe | 50,000 | Community | Groundwater |
| Indiana American Water - West Lafayette | Tippecanoe | 35,533 | Community | Groundwater |
| Battle Ground Water District | Tippecanoe | 1,940 | Community | Groundwater |
| Family Express #43 Lafayette Sr 25 | Tippecanoe | 1,107 | Transient non-community | Groundwater |
| Family Express #41 Lafayette Us 52 | Tippecanoe | 1,102 | 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, “Dayton Water Utility, PWSID IN5279021, Indiana”, https://aquacensus.com/water-systems/indiana/dayton-water-utility-in5279021 (data as of October 1, 2026).