Public water system · IL0315770
ActiveHillside Berkeley Water Commission
At a glance
Hillside Berkeley Water Commission (PWSID IL0315770) is an active community water system in Cook County, Illinois. It reports serving 1 people through 2 service connections. Its primary water source is purchased surface water, 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
1
Service connections
2
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Hillside Berkeley Water Commission compare with other water systems in Cook County?
By EPA's size categories, Hillside Berkeley Water Commission is a very small system (500 people or fewer). Cook County has 251 active public water systems. Its population served is well below the county average of 20,993 people per system, and accounts for less than 0.1% 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 Hillside Berkeley Water Commission 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 619 Illinois systems (16%) list purchased surface water as their primary source.
Who owns and regulates Hillside Berkeley Water Commission?
EPA lists Hillside Berkeley Water Commission 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 Hillside Berkeley Water Commission 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 Hillside Berkeley Water Commission. For the latest compliance status, check EPA ECHO for current compliance history.
Hillside Berkeley Water Commission: frequently asked questions
Who runs Hillside Berkeley Water Commission?
Hillside Berkeley Water Commission (PWSID IL0315770) is a community water system owned by a local government. It is regulated by the IL state drinking water program.
How many people does Hillside Berkeley Water Commission serve?
Hillside Berkeley Water Commission reports serving 1 people through 2 service connections in Cook County, Illinois.
Where does Hillside Berkeley Water Commission get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Hillside Berkeley Water Commission have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Hillside Berkeley Water Commission'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 Hillside Berkeley Water Commission's water quality report?
As a community water system, Hillside Berkeley Water Commission 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 |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Hillside Berkeley Water Commission, PWSID IL0315770, Illinois”, https://aquacensus.com/water-systems/illinois/hillside-berkeley-water-commission-il0315770 (data as of October 1, 2026).