Public water system · IL0035030
ActiveIl American-Cairo
At a glance
Il American-Cairo (PWSID IL0035030) is an active community water system in Alexander County, Illinois. It reports serving 1,821 people through 1,054 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,821
Service connections
1,054
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Il American-Cairo compare with other water systems in Alexander County?
By EPA's size categories, Il American-Cairo is a small system (501 to 3,300 people). Alexander County has 6 active public water systems, and Il American-Cairo is the 2nd-largest of them by population served. Its population served is about 45% above the county average of 1,258 people per system, and accounts for 24% of the 7,545 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-Cairo 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 Il American-Cairo?
EPA lists Il American-Cairo 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. 1 of the 6 active systems in Alexander County (17%) are also privately owned.
Does Il American-Cairo have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996. The violations listed here began between June 1977 and August 1996. By type: 2 monitoring and reporting. The contaminants or rules involved are Surface Water Treatment Rule and Gross alpha (excluding radon and uranium). EPA lists 2 as archived. 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 |
|---|---|---|---|---|
| 1996-08-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Archived |
| 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.
Il American-Cairo: frequently asked questions
Who runs Il American-Cairo?
Il American-Cairo (PWSID IL0035030) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Il American-Cairo serve?
Il American-Cairo reports serving 1,821 people through 1,054 service connections in Alexander County, Illinois.
Where does Il American-Cairo 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 Il American-Cairo have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in August 1996. 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-Cairo'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 August 1996. 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-Cairo's water quality report?
As a community water system, Il American-Cairo 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 Alexander County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Southwater Inc. | Alexander | 2,185 | Community | Groundwater |
| Central Alexander Cnty PWD | Alexander | 1,763 | Community | Purchased groundwater |
| Mcclure-East Cape PWD | Alexander | 910 | Community | Purchased groundwater |
| Tamms | Alexander | 653 | Community | Purchased groundwater |
| Thebes | Alexander | 213 | 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, “Il American-Cairo, PWSID IL0035030, Illinois”, https://aquacensus.com/water-systems/illinois/il-american-cairo-il0035030 (data as of October 1, 2026).