Public water system · MI0003840

Active

Leslie, City of

At a glance

City of Leslie (PWSID MI0003840) is an active community water system in Ingham County, Michigan. It reports serving 1,872 people through 700 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2025.

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

Population served

1,872

Service connections

700

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDMI0003840

System typeCommunity water system

Activity statusActive

Population served1,872

Service connections700

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyMI state drinking water program

City servedLeslie

StateMichigan

ZIP—

CountyIngham County

How does City of Leslie compare with other water systems in Ingham County?

By EPA's size categories, City of Leslie is a small system (501 to 3,300 people). Ingham County has 108 active public water systems. Its population served is about 27% below the county average of 2,577 people per system, and accounts for 0.7% of the 278,352 people reported by systems filed under the county. Across Michigan, the 10,599 active systems average 847 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Leslie 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. Michigan has 1,332 active community water systems, 13% of the state's 10,599 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 10,214 Michigan systems (96%) list groundwater as their primary source.

Who owns and regulates City of Leslie?

EPA lists City of Leslie as owned by a local government. The MI state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 12 of the 108 active systems in Ingham County (11%) are also owned by a local government.

Does City of Leslie have drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 2025. The violations listed here began between January 2014 and January 2025. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (4 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
2025-01-01	Monitoring and reportingMonitoring, Regular · code 03	Combined Uraniumcode 4006	No	Resolved
2023-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2022-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72	Consumer Confidence Rulecode 7000	No	Resolved
2021-03-12	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2020-07-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved
2020-01-01	Monitoring and reportingWater Quality Parameter M/R · code 53	Lead and Copper Rulecode 5000	No	Resolved
2015-12-30	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2015-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2015-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2014-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2014-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	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.

City of Leslie: frequently asked questions

Who runs City of Leslie?

City of Leslie (PWSID MI0003840) is a community water system owned by a local government. It is regulated by the MI state drinking water program.

How many people does City of Leslie serve?

City of Leslie reports serving 1,872 people through 700 service connections in Ingham County, Michigan.

Where does City of Leslie 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 City of Leslie have any drinking water violations?

EPA's records list 11 violations for this system; 1 is health-based, and the most recent began in January 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 City of Leslie'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; 1 is health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the MI state drinking water program.

Where can I find City of Leslie's water quality report?

As a community water system, City of Leslie 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 Ingham County

Water system	County	Population served	Type	Source
Lansing Board of Water & Light	Ingham	166,000	Community	Groundwater
East Lansing, City of	Ingham	33,000	Community	Purchased groundwater
Meridian Township	Ingham	25,600	Community	Purchased groundwater
Michigan State University	Ingham	12,793	Community	Groundwater
Mason, City of	Ingham	8,252	Community	Groundwater
Lansing Township	Ingham	5,500	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, “Leslie, City of, PWSID MI0003840, Michigan”, https://aquacensus.com/water-systems/michigan/leslie-city-of-mi0003840 (data as of October 1, 2026).