Public water system · IN5279013

Active

Lafayette Water Works

At a glance

Lafayette Water Works (PWSID IN5279013) is an active community water system in Tippecanoe County, Indiana. It reports serving 70,835 people through 27,667 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, one is health-based, and the most recent began in January 2026.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

70,835

Service connections

27,667

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIN5279013

System typeCommunity water system

Activity statusActive

Population served70,835

Service connections27,667

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIN state drinking water program

City servedLafayette

StateIndiana

ZIP—

CountyTippecanoe County

How does Lafayette Water Works compare with other water systems in Tippecanoe County?

By EPA's size categories, Lafayette Water Works is a large system (10,001 to 100,000 people). Tippecanoe County has 89 active public water systems, and Lafayette Water Works is the largest of them by population served. Its population served is about 36 times the county average of 1,976 people per system, and accounts for 40% 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 Lafayette Water Works is about 11 times 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 Lafayette Water Works?

EPA lists Lafayette Water Works 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 Lafayette Water Works have drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. The violations listed here began between October 1996 and January 2026. By type: 8 monitoring and reporting, 2 reporting, 1 monitoring and 1 required treatment not met. The contaminant or rule involved most often is Revised Total Coliform Rule (3 of them). EPA lists 11 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
2026-01-01	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2025-07-13	Monitoring and reportingMonitoring, Source Water (GWR) · code 34	E. colicode 3014	No	Resolved
2025-07-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2021-05-01	ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B	Revised Total Coliform Rulecode 8000	No	Resolved
2019-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2019-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2011-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2008-07-01	Required treatment not metWQP Entry Point/Tap Treatment Technique Non-Compliance · code 59	Lead and Copper Rulecode 5000	Yes	Resolved
2001-10-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dibromo-3-chloropropane (DBCP)code 2931	No	Resolved
2001-09-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-07-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dibromo-3-chloropropane (DBCP)code 2931	No	Resolved
1996-10-01	Monitoring and reportingMonitoring, Regular · code 03	2,4,5-TP (Silvex)code 2110	No	Archived

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.

Lafayette Water Works: frequently asked questions

Who runs Lafayette Water Works?

Lafayette Water Works (PWSID IN5279013) is a community water system owned by a local government. It is regulated by the IN state drinking water program.

How many people does Lafayette Water Works serve?

Lafayette Water Works reports serving 70,835 people through 27,667 service connections in Tippecanoe County, Indiana.

Where does Lafayette Water Works 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 Lafayette Water Works have any drinking water violations?

Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in January 2026. 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 Lafayette Water Works' 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, one is health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.

Where can I find Lafayette Water Works' water quality report?

As a community water system, Lafayette Water Works 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
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
Dayton Water Utility	Tippecanoe	1,420	Community	Purchased 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, “Lafayette Water Works, PWSID IN5279013, Indiana”, https://aquacensus.com/water-systems/indiana/lafayette-water-works-in5279013 (data as of October 1, 2026).