Water quality in Old Mill Creek, Illinois
Old Mill Creek 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
Other community water systems in Lake County
102 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Grandwood Park Subdivision Lake CO PW |
5,751 | 0 | 2.7 mi | |
| Wadsworth Oaks Subdivision |
185 | 1 | 2.7 mi | |
| Gurnee Gurnee |
30,193 | 0 | 4.8 mi | |
| Lake Villa Lake Villa |
8,829 | 1 | 5.0 mi | |
| Bluff Lake Lodges, Inc. Antioch |
24 | 8 | 5.3 mi | |
| Round Lake Beach Round Lake Beach |
27,200 | 2 | 6.3 mi | |
| Wildwood Subdivision Lake CO PW |
14,073 | 1 | 6.3 mi | |
| Grayslake Grays Lake |
21,248 | 0 | 6.4 mi | |
| Lcpw Highland Lake Subdivision |
414 | 0 | 6.7 mi | |
| Antioch Antioch |
14,175 | 2 | 6.8 mi | |
| Zion Zion |
24,442 | 3 | 7.0 mi | |
| Waukegan Waukegan |
87,149 | 3 | 7.1 mi | |
| Round Lake Heights Round Lake Heights |
2,622 | 0 | 7.1 mi | |
| IL American-Harbor Ridge |
1,064 | 0 | 7.2 mi | |
| Hainesville Hainesville |
3,528 | 1 | 7.3 mi | |
| Park City Park City |
5,425 | 3 | 7.3 mi | |
| Park City MHP Park City |
2,460 | 1 | 7.4 mi | |
| Beach Park Beach Park |
8,710 | 0 | 7.5 mi | |
| Round Lake Park Round Lake Park |
4,900 | 4 | 7.5 mi | |
| Fox Lake Hills Subdivision Lake CO PW |
2,628 | 1 | 8.0 mi | |
| Cambridge Courts MHP Northbrook |
658 | 2 | 8.0 mi | |
| Beach MHP Zion |
624 | 1 | 8.1 mi | |
| Lake View MHP |
568 | 1 | 8.3 mi | |
| Winthrop Harbor Winthrop Harbor |
6,565 | 4 | 8.7 mi | |
| Round Lake Round Lake |
18,430 | 2 | 9.1 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 Old Mill Creek 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. Retrieved from ECHO on Oct 11, 2026.