All water systems in Illinois
5,097 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rookies II Lake County |
150 | 1 | 0 | |
|
Sammies Lake County |
150 | 0 | 0 | |
|
Scoobys Red Hots DuPage County |
150 | 1 | 0 | |
|
Speedway Lincoln Highway Will County |
150 | 3 | 1 | |
|
Spring Valley Reformed Church Whiteside County |
150 | 2 | 0 | |
|
ST George Coptic Orthodox Church Will County |
150 | 1 | 0 | |
|
ST John Baptist McHenry County |
150 | 2 | 1 | |
|
ST Mary Educational Center Lake County |
150 | 0 | 0 | |
|
ST Pauls Luthern Church Mason County |
150 | 0 | 0 | |
|
ST Peter Lutheran Church (131946) Cass County |
150 | 3 | 2 | |
|
The Pier Lawrence County |
150 | 0 | 0 | |
|
Timber Pointe Oc-Sterns Lodge McLean County |
150 | 3 | 1 | |
|
Timber Ridge Mobile Estates Stephenson County |
150 | 1 | 0 | |
|
Trinity Presbyterian Church Mercer County |
150 | 0 | 0 | |
|
VFW Wheaton Post #2164 DuPage County |
150 | 0 | 0 | |
|
Campus Campus · Livingston County |
149 | 3 | 0 | |
|
Prairie Ridge Association McHenry County |
148 | 0 | 0 | |
|
Camp Grove Marshall County |
146 | 0 | 0 | |
|
Ineos Styrolution America LLC Will County |
146 | 5 | 0 | |
|
Longview Long View · Champaign County |
146 | 2 | 2 | |
|
Aqua Illinois-Summerdale Norridge · Cook County |
145 | 2 | 0 | |
|
Rustic Harbor Attn Joe Kijak Lake County |
145 | 0 | 0 | |
|
Wood Dale Estates DuPage County |
145 | 4 | 0 | |
|
Kemper Lakes Golf Hole #14 Lake County |
144 | 0 | 0 | |
|
Manteno MHP Kankakee County |
144 | 0 | 0 | |
|
Jewel Food Store Vending #2 Will County |
143 | 0 | 0 | |
|
Village of North Barrington Lake County |
142 | 2 | 1 | |
|
Duck Lake Well Owners Association Lake County |
141 | 4 | 2 | |
|
Colona United Methodist Church Henry County |
140 | 0 | 0 | |
|
Cross Lutheran School Kendall County |
140 | 1 | 0 | |
|
Handy Spot Liquor Lake County |
140 | 0 | 0 | |
|
Hazelwood 4th Addition Henry County |
140 | 3 | 2 | |
|
LA Chaquita Market Kane County |
140 | 0 | 0 | |
|
Little Prairie Mennonite Church Ogle County |
140 | 1 | 0 | |
|
McKinley Avenue Bus Barn Boone County |
140 | 0 | 0 | |
|
Meadows Mennonite Home McLean County |
140 | 8 | 1 | |
|
Pbc Linear Winnebago County |
140 | 6 | 1 | |
|
Rudys Place la Mina Kane County |
140 | 3 | 1 | |
|
ST Marys School Bored Well Peoria County |
140 | 9 | 1 | |
|
Timber Pointe Pool McLean County |
140 | 3 | 1 | |
|
Media Media · Henderson County |
139 | 2 | 0 | |
|
Metcalf Metcalf · Edgar County |
139 | 0 | 0 | |
|
Indian Bluffs Subdivision Rock Island County |
138 | 1 | 1 | |
|
Oak Grove MHP Madison County Alton · Madison County |
138 | 1 | 0 | |
|
Oak Grove MHP Rock Island County Rock Island County |
138 | 3 | 1 | |
|
Watch E Kee Manufactured Home Community Iroquois County |
138 | 1 | 0 | |
|
Brussels Brussels · Calhoun County |
136 | 1 | 1 | |
|
Illinois City Elementary Schoo Rock Island County |
136 | 2 | 0 | |
|
Hy-Vee INC LaSalle County |
135 | 2 | 1 | |
|
Allin Township Park McLean County |
134 | 3 | 2 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.