Water quality for ZIP code 61734
ZIP 61734 covers Delavan in Tazewell County, Illinois, one of 16 ZIP codes in the county. 99 active public water systems serve the county; 32 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 Tazewell County
29 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Venado Lakes-Argyll Water Association |
215 | 0 | 4.2 mi | |
| Green Valley Green Valley |
638 | 0 | 6.6 mi | |
| Hopedale Hopedale |
830 | 1 | 6.8 mi | |
| Tremont Tremont |
2,114 | 0 | 9.6 mi | |
| South Pekin South Pekin |
996 | 3 | 10.8 mi | |
| Armington Armington |
310 | 0 | 11.4 mi | |
| Lake Windermere Estates Subdivision Tremont |
300 | 0 | 11.8 mi | |
| Minier Minier |
1,180 | 0 | 11.9 mi | |
| IL American-Pekin Pekin |
31,731 | 0 | 13.8 mi | |
| Pekin Fed Correctional Inst and Prsncmp Pekin |
1,635 | 1 | 14.5 mi | |
| Uaw Senior Citizens Center Pekin |
240 | 4 | 14.5 mi | |
| Mackinaw |
3,399 | 0 | 15.0 mi | |
| Groveland Township Water District |
2,185 | 0 | 16.8 mi | |
| North Pekin North Pekin |
1,478 | 1 | 16.9 mi | |
| Morton Morton |
17,117 | 2 | 17.3 mi | |
| Marquette Heights Marquette Heights |
2,974 | 2 | 17.4 mi | |
| Mayfair Subdivision |
98 | 0 | 17.8 mi | |
| Creve Coeur |
4,934 | 0 | 19.0 mi | |
| Oak Lane Acres Subdivision Morton |
120 | 2 | 19.5 mi | |
| SC Edgewood Terrace Property, LLC |
248 | 2 | 19.7 mi | |
| Deer Creek Deer Creek |
647 | 0 | 20.4 mi | |
| East Peoria East Peoria |
22,484 | 2 | 20.4 mi | |
| North Tazewell Pwd East Peoria |
7,625 | 1 | 22.0 mi | |
| IL American-Washington Estates Washington |
1,143 | 0 | 23.4 mi | |
| Washington Washington |
14,793 | 1 | 23.5 mi |
Non-community systems in Tazewell County (69: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Tazewell County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.