Public water system · IL0950200
ActiveGalesburg
At a glance
Galesburg (PWSID IL0950200) is an active community water system in Knox County, Illinois. It reports serving 31,620 people through 12,648 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2014.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
31,620
Service connections
12,648
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Galesburg compare with other water systems in Knox County?
By EPA's size categories, Galesburg is a large system (10,001 to 100,000 people). Knox County has 34 active public water systems, and Galesburg is the largest of them by population served. Its population served is about 22 times the county average of 1,442 people per system, and accounts for 64% of the 49,041 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 Galesburg is about 4.7 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. 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 Galesburg?
EPA lists Galesburg 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. 14 of the 34 active systems in Knox County (41%) are also owned by a local government.
Does Galesburg have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2014. The violations listed here began between June 1977 and July 2014. By type: 1 public notice, recordkeeping or other, 1 required treatment not met and 1 monitoring and reporting. The contaminants or rules involved are Consumer Confidence Rule, Lead and Copper Rule and Gross alpha (excluding radon and uranium). EPA lists 2 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 |
|---|---|---|---|---|
| 2014-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1992-12-07 | Required treatment not metOCCT/SOWT Study/Recommendation · code 57 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 3 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.
Galesburg: frequently asked questions
Who runs Galesburg?
Galesburg (PWSID IL0950200) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Galesburg serve?
Galesburg reports serving 31,620 people through 12,648 service connections in Knox County, Illinois.
Where does Galesburg 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 Galesburg have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2014. 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 Galesburg'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 3 violations for this system; 1 is health-based, and the most recent began in July 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Galesburg's water quality report?
As a community water system, Galesburg 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 Knox County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Abingdon | Knox | 3,275 | Community | Purchased groundwater |
| Knoxville | Knox | 3,120 | Community | Purchased groundwater |
| I74 Spoon River Rest Area | Knox | 2,356 | Transient non-community | Groundwater |
| Aqua Illinois-Oak Run | Knox | 1,885 | Community | Groundwater |
| Wataga | Knox | 965 | Community | Groundwater |
| East Galesburg | Knox | 860 | Community | Purchased 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, “Galesburg, PWSID IL0950200, Illinois”, https://aquacensus.com/water-systems/illinois/galesburg-il0950200 (data as of October 1, 2026).