Tapcensus

All water systems in Illinois

115 systems

SystemServesStatusRules violated, 3 yrUnresolved
Willa Wood
Winnebago County 		18,000 0 0
Willo Wood Recreational Farm
Winnebago County 		18,000 0 0
Williamsville-Sherman Wtr Cmsn
Unspec Pl In Co · Sangamon County 		3,890 0 0
Willowbrook H S #88
DuPage County 		3,400 0 0
Allstate Willow Campus
Cook County 		1,199 0 0
Willow Creek Community Church
Cook County 		1,000 0 0
William Hamilton Plt Mgr
Will County 		650 0 0
Will County Forest Preserve
Will County 		400 0 0
Willow Springs Woods 5234
Cook County 		400 0 0
Willow Springs Woods 5038
Cook County 		400 0 0
Willow Springs Woods 5038
Cook County 		400 0 0
Willow Springs Woods HP 5243
Cook County 		400 0 0
Williamson
Williamson · Madison County 		340 0 0
Willowway Manor
DuPage County 		200 0 0
Will County Sportsman Club
Will County 		150 0 0
Willow Creek Resort (119727)
Winnebago County 		150 0 0
Willowbrook Liquors (foremost)
DuPage County 		150 0 0
Willow Run Golf Course
Will County 		120 0 0
Old Willow Market
Cook County 		100 0 0
Vicount Hall Williams Park
Lake County 		100 0 0
Willow Creek Resort (1834)
Winnebago County 		100 0 0
Willow Run Country Club
Will County 		100 0 0
Will CO Assn for Retarded INC
Will County 		90 0 0
Will CO Assn for Retarded INC
Will County 		90 0 0
First Free Will Baptist Church
Kane County 		85 0 0
First Free Will Baptist Church
Kane County 		85 0 0
Highland Freewill Baptist Chur
Will County 		75 0 0
Willow Creek Resort (16816)
Winnebago County 		75 0 0
Butterfield Free Will Baptist
Kane County 		70 0 0
William Richey
Williamson County 		70 0 0
William Richey
Williamson County 		70 0 0
Will County Dept of Highways
Will County 		60 0 0
Nadine Zwilling, Principal
Richland County 		56 0 0
Atwood Homestead Will Grove HP
Winnebago County 		50 0 0
Goodwill Missionary Baptist CH
Kankakee County 		50 0 0
Goodwill Missionary Baptist CH
Kankakee County 		50 0 0
Oak Grove Free Will Baptist CH
Jefferson County 		50 0 0
Oak Grove Free Will Baptist CH
Jefferson County 		50 0 0
Will Cook Ace Hardware
Will County 		50 0 0
Willie's Show Case, INC
Jackson County 		50 0 0
Willow Creek Presbyterian CH
Boone County 		50 0 0
Willowbrook Ford
DuPage County 		50 0 0
Immanuel Free Will Babtist CH
Will County 		40 0 0
Will Cook Ace Hardware
Will County 		40 0 0
Will County C and G
Will County · Will County 		40 0 0
Williams Building
Will County 		36 0 0
Williams Building
Will County 		36 0 0
Will County Farm Bureau
Will County 		35 0 0
Will County Senior Services
Will County 		34 0 0
William Hoekstra & Sons
Kankakee County 		31 0 0
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.