Public water system · IL1110080
ActiveIl American-Terra Cotta
At a glance
Il American-Terra Cotta (PWSID IL1110080) is an active community water system in McHenry County, Illinois. It reports serving 681 people through 262 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
681
Service connections
262
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Il American-Terra Cotta compare with other water systems in McHenry County?
By EPA's size categories, Il American-Terra Cotta is a small system (501 to 3,300 people). McHenry County has 192 active public water systems. Its population served is about half of the county average of 1,331 people per system, and accounts for 0.3% of the 255,516 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-Terra Cotta 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-Terra Cotta?
EPA lists Il American-Terra Cotta 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. 154 of the 192 active systems in McHenry County (80%) are also privately owned.
Does Il American-Terra Cotta have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Il American-Terra Cotta. For the latest compliance status, check EPA ECHO for current compliance history.
Il American-Terra Cotta: frequently asked questions
Who runs Il American-Terra Cotta?
Il American-Terra Cotta (PWSID IL1110080) is a community water system privately owned. It is regulated by the IL state drinking water program.
How many people does Il American-Terra Cotta serve?
Il American-Terra Cotta reports serving 681 people through 262 service connections in McHenry County, Illinois.
Where does Il American-Terra Cotta 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-Terra Cotta have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Il American-Terra Cotta'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 Safe Drinking Water Act records list no violations for this system. 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-Terra Cotta's water quality report?
As a community water system, Il American-Terra Cotta 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 McHenry County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Crystal Lake | McHenry | 40,661 | Community | Groundwater |
| Algonquin | McHenry | 30,700 | Community | Groundwater |
| Lake in the Hills | McHenry | 28,661 | Community | Groundwater |
| Huntley | McHenry | 28,495 | Community | Groundwater |
| Woodstock | McHenry | 25,630 | Community | Groundwater |
| Mchenry | McHenry | 22,335 | 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-Terra Cotta, PWSID IL1110080, Illinois”, https://aquacensus.com/water-systems/illinois/il-american-terra-cotta-il1110080 (data as of October 1, 2026).