Public water system · IL1635040
ActiveIl American-East St Louis
At a glance
Il American-East St Louis (PWSID IL1635040) is an active community water system in St. Clair County, Illinois. It reports serving 131,368 people through 52,547 service connections. Its primary water source is surface water, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
131,368
Service connections
52,547
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Il American-East St Louis compare with other water systems in St. Clair County?
By EPA's size categories, Il American-East St Louis is a very large system (more than 100,000 people). St. Clair County has 42 active public water systems, and Il American-East St Louis is the largest of them by population served. Its population served is about 22 times the county average of 6,082 people per system, and accounts for 51% of the 255,459 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 Il American-East St Louis is about 20 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. 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 Il American-East St Louis?
EPA lists Il American-East St Louis as privately owned. 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. 16 of the 42 active systems in St. Clair County (38%) are also privately owned.
Does Il American-East St Louis have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in July 2016. The violations listed here began between June 1977 and July 2016. 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 |
|---|---|---|---|---|
| 2016-07-01 | 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.
Il American-East St Louis: frequently asked questions
Who runs Il American-East St Louis?
Il American-East St Louis (PWSID IL1635040) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Il American-East St Louis serve?
Il American-East St Louis reports serving 131,368 people through 52,547 service connections in St. Clair County, Illinois.
Where does Il American-East St Louis 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 Il American-East St Louis 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 2016. 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 Il American-East St Louis' 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 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the IL state drinking water program.
Where can I find Il American-East St Louis' water quality report?
As a community water system, Il American-East St Louis 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 St. Clair County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| O Fallon | St. Clair | 46,603 | Community | Purchased surface water |
| Caseyville | St. Clair | 13,798 | Community | Purchased surface water |
| Cahokia Heights | St. Clair | 12,528 | Community | Purchased surface water |
| Mascoutah | St. Clair | 8,759 | Community | Purchased surface water |
| American Water Oper and Maintenance, LLC | St. Clair | 6,779 | Community | Purchased surface water |
| Lebanon | St. Clair | 4,714 | 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, “Il American-East St Louis, PWSID IL1635040, Illinois”, https://aquacensus.com/water-systems/illinois/il-american-east-st-louis-il1635040 (data as of October 1, 2026).