PlainWater

Public Water Systems

5,117 active public water systems in IL, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.

Population Violations Health Violations Name
System Name Location Population Violations PFAS
Freeport Freeport, IL 23,930 3 Detected
South Elgin South Elgin, IL 23,648 38 Detected
Loves Park Loves Park, IL 23,335 237 Clean
Rolling Meadows Rolling Meadows, IL 23,329 36 Clean
Lockport Lockport, IL 23,100 197 Detected
Yorkville Yorkville, IL 23,000 324 Clean
Great Lakes Naval Training Station Great Lakes, IL 23,000 38 Clean
Roselle Roselle, IL 22,897 42 Clean
McHenry McHenry, IL 22,335 101 Detected
East Peoria East Peoria, IL 22,284 40 Detected
Villa Park Villa Park, IL 22,263 41 Clean
Carbondale Carbondale, IL 22,107 42 Clean
Bloomingdale Bloomingdale, IL 22,018 79 Clean
South Holland South Holland, IL 22,000 37 Detected
Park Forest Park Forest, IL 21,975 154 Clean
Darien Darien, IL 21,751 15 Clean
Blue Island Blue Island, IL 21,494 23 Clean
East Moline East Moline, IL 21,374 95 Detected
Grayslake Grayslake, IL 21,248 33 Clean
Geneva Geneva, IL 21,247 192 Clean
Crest Hill Crest Hill, IL 21,169 190 Detected
Dolton Dolton, IL 20,510 83 Clean
Libertyville Libertyville, IL 20,500 27 Detected
Evergreen Park Evergreen Park, IL 19,943 10 Clean
Jacksonville Jacksonville, IL 19,903 33 Detected
Mokena Mokena, IL 19,887 51 Clean
Lake Zurich Lake Zurich, IL 19,759 260 Detected
Lake Forest Lake Forest, IL 19,642 33 Clean
Mattoon Mattoon, IL 19,500 71 Detected
Homewood Homewood, IL 19,463 22 Detected
Deerfield Deerfield, IL 19,196 44 Clean
Bellwood Bellwood, IL 19,156 53 Clean
Alsip Alsip, IL 19,063 22 Clean
IL American-Streator Godfrey, IL 19,000 71 Detected
Brookfield Brookfield, IL 18,776 48 Clean
Shorewood Shorewood, IL 18,645 105 Detected
Bensenville Bensenville, IL 18,537 59 Clean
Palos Hills Palos Hills, IL 18,530 18 Clean
Sycamore Sycamore, IL 18,500 212 Clean
Franklin Park Franklin Park, IL 18,467 41 Clean
Justice-Willow Springs Water Commission Justice, IL 18,457 26 Clean
Round Lake Round Lake, IL 18,430 33 Clean
North Aurora North Aurora, IL 18,350 210 Clean
Matteson Matteson, IL 18,293 39 Clean
Ottawa Ottawa, IL 18,097 365 Clean
Hinsdale Hinsdale, IL 17,900 11 Clean
Cary Cary, IL 17,826 66 Detected
Lemont Lemont, IL 17,500 139 Clean
Charleston Charleston, IL 17,286 35 Detected
Morton Morton, IL 17,111 56 Clean
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