Public water system · IL0978970
ActiveLcpw - Oak Terrace
At a glance
Lcpw - Oak Terrace (PWSID IL0978970) is an active community water system in Lake County, Illinois. It reports serving 45 people through 15 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
45
Service connections
15
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lcpw - Oak Terrace compare with other water systems in Lake County?
By EPA's size categories, Lcpw - Oak Terrace is a very small system (500 people or fewer). Lake County has 266 active public water systems. Its population served is well below the county average of 2,442 people per system, and accounts for less than 0.1% of the 649,474 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 Lcpw - Oak Terrace 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 Lcpw - Oak Terrace?
EPA lists Lcpw - Oak Terrace 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. 60 of the 266 active systems in Lake County (23%) are also owned by a local government.
Does Lcpw - Oak Terrace 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 Lcpw - Oak Terrace. For the latest compliance status, check EPA ECHO for current compliance history.
Lcpw - Oak Terrace: frequently asked questions
Who runs Lcpw - Oak Terrace?
Lcpw - Oak Terrace (PWSID IL0978970) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Lcpw - Oak Terrace serve?
Lcpw - Oak Terrace reports serving 45 people through 15 service connections in Lake County, Illinois.
Where does Lcpw - Oak Terrace 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 Lcpw - Oak Terrace have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Lcpw - Oak Terrace'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 Lcpw - Oak Terrace's water quality report?
As a community water system, Lcpw - Oak Terrace 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 Lake County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Waukegan | Lake | 87,149 | Community | Surface water |
| Vernon Hills - Lake Co Pw | Lake | 33,207 | Community | Purchased surface water |
| Mundelein | Lake | 31,500 | Community | Purchased surface water |
| Gurnee | Lake | 30,193 | Community | Purchased surface water |
| Highland Park | Lake | 30,176 | Community | Surface water |
| Round Lake Beach | Lake | 27,200 | 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, “Lcpw - Oak Terrace, PWSID IL0978970, Illinois”, https://aquacensus.com/water-systems/illinois/lcpw-oak-terrace-il0978970 (data as of October 1, 2026).