Public water system · IL0910450
ActiveHerscher
At a glance
Herscher (PWSID IL0910450) is an active community water system in Kankakee County, Illinois. It reports serving 1,600 people through 622 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,600
Service connections
622
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Herscher compare with other water systems in Kankakee County?
By EPA's size categories, Herscher is a small system (501 to 3,300 people). Kankakee County has 50 active public water systems, and Herscher is the 3rd-largest of them by population served. Its population served is about 15% below the county average of 1,882 people per system, and accounts for 1.7% of the 94,096 people reported by systems filed under the county. Across Illinois, the 3,872 active systems average 3,204 people each. Nationally, the average active community water system reports serving 6,703 people, so Herscher 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. Illinois has 1,773 active community water systems, 46% of the state's 3,872 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,808 Illinois systems (73%) list groundwater as their primary source.
Who owns and regulates Herscher?
EPA lists Herscher as owned by a local government. The IL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 11 of the 50 active systems in Kankakee County (22%) are also owned by a local government.
Does Herscher have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between June 1977 and July 2025. By type: 3 monitoring and reporting and 1 reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (2 of them). EPA lists 3 as archived and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-02 | ReportingNotification, Known or Potential LSL · code 4H | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2002-05-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1995-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 4 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.
Herscher: frequently asked questions
Who runs Herscher?
Herscher (PWSID IL0910450) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Herscher serve?
Herscher reports serving 1,600 people through 622 service connections in Kankakee County, Illinois.
Where does Herscher 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 Herscher have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 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 Herscher'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 4 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Herscher's water quality report?
As a community water system, Herscher 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 Kankakee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Aqua Illinois-Kankakee | Kankakee | 80,000 | Community | Surface water |
| Momence | Kankakee | 3,075 | Community | Groundwater |
| Pembroke Township | Kankakee | 1,410 | Community | Purchased groundwater |
| St Anne | Kankakee | 1,200 | Community | Groundwater |
| Sunny Acres MHP | Kankakee | 750 | Community | Groundwater |
| Hopkins Park | Kankakee | 579 | 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, “Herscher, PWSID IL0910450, Illinois”, https://aquacensus.com/water-systems/illinois/herscher-il0910450 (data as of October 1, 2026).