Water quality in Round Lake, Illinois
Round Lake is in Lake County. 535 active public water systems serve the county; 213 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Lake County
102 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Chain-O-Lakes MHP |
84 | 0 | 0.3 mi | |
| Round Lake Park Round Lake Park |
4,900 | 4 | 1.6 mi | |
| Cambridge Courts MHP Northbrook |
658 | 2 | 1.7 mi | |
| Hainesville Hainesville |
3,528 | 1 | 2.1 mi | |
| Lcpw Brooks Farm Subdivision |
1,563 | 0 | 2.1 mi | |
| Lcpw Highland Lake Subdivision |
414 | 0 | 2.4 mi | |
| Volo Volo |
6,629 | 2 | 2.7 mi | |
| Tanneron Bay Homeowners Association |
256 | 1 | 2.7 mi | |
| Saddlebrook Farms |
2,558 | 1 | 2.8 mi | |
| Round Lake Beach Round Lake Beach |
27,200 | 2 | 3.0 mi | |
| Round Lake Heights Round Lake Heights |
2,622 | 0 | 3.1 mi | |
| Duck Lake Well Owners Association |
141 | 4 | 3.3 mi | |
| Grayslake Grays Lake |
21,248 | 0 | 3.7 mi | |
| Aqua Illinois-Rockwell |
1,762 | 1 | 3.9 mi | |
| Hilldale Manor Subdivision |
414 | 0 | 4.2 mi | |
| Ports Sullivan Lake Owners Association |
293 | 1 | 4.5 mi | |
| Aqua Illinois-Ivanhoe |
650 | 0 | 4.6 mi | |
| Lakemoor Lakemoor |
2,720 | 3 | 4.7 mi | |
| Wauconda Wauconda |
15,349 | 1 | 5.0 mi | |
| Lake Villa Lake Villa |
8,829 | 1 | 5.3 mi | |
| Fox Lake Hills Subdivision Lake CO PW |
2,628 | 1 | 5.5 mi | |
| Fox Lake Fox Lake |
11,780 | 5 | 5.5 mi | |
| Wildwood Subdivision Lake CO PW |
14,073 | 1 | 6.1 mi | |
| Countryside Lake Subdivision -Lake CO PW |
1,287 | 0 | 6.5 mi | |
| Island Lake Island Lake |
8,066 | 1 | 6.5 mi |
Non-community systems in Lake County (432: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Lake County, nearest to Round Lake first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Illinois records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.