Tapcensus

Water quality in Oconee, Illinois

Oconee is in Shelby County. 13 active public water systems serve the county; 6 had an EPA violation in the past three years.

Most likely your provider

Herrick IL1730150 · Community water system · Ground water · Herrick
Serves 358 people Rules violated, past 3 years 4 Unresolved 1 Last sanitary survey Jan 20, 2026 Distance 8.1 mi

Other community water systems in Shelby County

8 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Tower Hill
Tower Hill
500 0 10.5 mi
Cowden
Tower Hill
534 1 13.9 mi
Shelbyville
Shelbyville
5,600 2 18.0 mi
Moweaqua
Moweaqua
1,785 0 23.9 mi
Findlay
Findlay
750 3 24.9 mi
Stewardson
Stewardson
734 3 25.5 mi
Windsor
Windsor
1,200 2 29.3 mi
Sigel
Sigel
400 0 33.0 mi
Non-community systems in Shelby County (4: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Knobs Baptist Church
70 0 0
Walmart #4259
25 0 0
Prairie Pure Vending
25 0 0
Twice the Ice Shelbyville
25 0 0
About this data

Water systems are matched to Shelby County, nearest to Oconee 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.

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.