Public water system · IL0310990
ActiveGlencoe
At a glance
Glencoe (PWSID IL0310990) is an active community water system in Cook County, Illinois. It reports serving 8,849 people through 3,049 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
8,849
Service connections
3,049
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Glencoe compare with other water systems in Cook County?
By EPA's size categories, Glencoe is a medium system (3,301 to 10,000 people). Cook County has 251 active public water systems. Its population served is about 58% below the county average of 20,993 people per system, and accounts for 0.2% of the 5,269,212 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 Glencoe is about 32% above 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 89 Illinois systems (2.3%) list surface water as their primary source.
Who owns and regulates Glencoe?
EPA lists Glencoe 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. 134 of the 251 active systems in Cook County (53%) are also owned by a local government.
Does Glencoe have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2010. The violations listed here began between June 1977 and October 2010. By type: 2 monitoring and reporting. The contaminants or rules involved are Chlorine and Gross alpha (excluding radon and uranium). EPA lists 1 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 |
|---|---|---|---|---|
| 2010-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1977-06-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 2 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.
Glencoe: frequently asked questions
Who runs Glencoe?
Glencoe (PWSID IL0310990) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Glencoe serve?
Glencoe reports serving 8,849 people through 3,049 service connections in Cook County, Illinois.
Where does Glencoe get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Glencoe have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2010. 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 Glencoe'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 2 violations for this system; none is health-based, and the most recent began in October 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Glencoe's water quality report?
As a community water system, Glencoe 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 Cook County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Chicago | Cook | 2,721,308 | Community | Surface water |
| Cicero | Cook | 83,000 | Community | Purchased surface water |
| Schaumburg | Cook | 75,750 | Community | Purchased surface water |
| Evanston | Cook | 74,486 | Community | Surface water |
| Arlington Heights | Cook | 73,320 | Community | Purchased surface water |
| Palatine | Cook | 70,875 | Community | Purchased surface water |
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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, “Glencoe, PWSID IL0310990, Illinois”, https://aquacensus.com/water-systems/illinois/glencoe-il0310990 (data as of October 1, 2026).