Illinois Drinking Water Violations
1,283Water Systems
20,276Total Violations
2,050Health-Based
| County | Water Systems | Total Violations | Health-Based |
|---|---|---|---|
| Mclean | 27 | 548 | 159 |
| Cook | 132 | 2,181 | 114 |
| Bureau | 22 | 483 | 93 |
| Bond | 8 | 250 | 86 |
| Mcdonough | 12 | 117 | 62 |
| Fulton | 15 | 199 | 60 |
| Macoupin | 20 | 320 | 56 |
| Carroll | 8 | 152 | 53 |
| Lee | 12 | 201 | 49 |
| Greene | 9 | 185 | 47 |
| Monroe | 6 | 153 | 45 |
| Lake | 56 | 616 | 44 |
| Lasalle | 21 | 489 | 44 |
| Randolph | 12 | 359 | 42 |
| Sangamon | 37 | 319 | 42 |
| Woodford | 17 | 193 | 39 |
| Iroquois | 21 | 256 | 38 |
| Christian | 11 | 195 | 38 |
| Effingham | 10 | 117 | 37 |
| St. Clair | 23 | 241 | 34 |
| Williamson | 18 | 217 | 32 |
| Perry | 7 | 122 | 32 |
| Will | 44 | 2,646 | 31 |
| Wayne | 10 | 116 | 31 |
| Winnebago | 22 | 201 | 30 |
| Edgar | 7 | 181 | 30 |
| Macon | 13 | 179 | 30 |
| Rock Island | 18 | 478 | 29 |
| Adams | 12 | 194 | 28 |
| Grundy | 12 | 409 | 27 |
| Douglas | 9 | 168 | 26 |
| Jackson | 13 | 158 | 25 |
| Clinton | 15 | 180 | 24 |
| Union | 5 | 51 | 24 |
| Ogle | 12 | 501 | 21 |
| Dekalb | 14 | 183 | 21 |
| Hancock | 10 | 100 | 20 |
| Tazewell | 22 | 196 | 19 |
| Livingston | 15 | 130 | 19 |
| Kankakee | 8 | 164 | 18 |
| Montgomery | 13 | 142 | 18 |
| Piatt | 8 | 82 | 18 |
| Logan | 9 | 56 | 16 |
| Champaign | 27 | 175 | 15 |
| Madison | 31 | 280 | 14 |
| Kane | 22 | 198 | 14 |
| Fayette | 7 | 74 | 14 |
| Knox | 14 | 120 | 13 |
| Shelby | 9 | 191 | 12 |
| Clark | 4 | 91 | 12 |
| Johnson | 4 | 42 | 12 |
| Mchenry | 15 | 278 | 11 |
| Henry | 14 | 76 | 10 |
| Putnam | 5 | 221 | 9 |
| Whiteside | 12 | 199 | 9 |
| Vermilion | 17 | 129 | 9 |
| Menard | 6 | 115 | 9 |
| Marshall | 7 | 63 | 8 |
| Richland | 6 | 349 | 7 |
| Ford | 10 | 129 | 7 |
| Warren | 6 | 61 | 7 |
| De Witt | 7 | 36 | 7 |
| Stephenson | 10 | 291 | 6 |
| Scott | 4 | 22 | 6 |
| Pope | 1 | 11 | 6 |
| Henderson | 7 | 207 | 5 |
| Peoria | 12 | 176 | 5 |
| Saline | 8 | 128 | 5 |
| Morgan | 8 | 96 | 5 |
| Cumberland | 4 | 16 | 5 |
| Mercer | 10 | 115 | 4 |
| Marion | 11 | 111 | 4 |
| Stark | 4 | 46 | 4 |
| Moultrie | 5 | 27 | 4 |
| Calhoun | 4 | 21 | 4 |
| Massac | 4 | 16 | 4 |
| Pike | 9 | 128 | 3 |
| Lawrence | 4 | 72 | 3 |
| Gallatin | 6 | 32 | 3 |
| Washington | 12 | 28 | 3 |
| Schuyler | 2 | 8 | 3 |
| Dupage | 32 | 330 | 2 |
| Mason | 6 | 45 | 2 |
| Kendall | 4 | 31 | 2 |
| Hardin | 3 | 25 | 2 |
| Franklin | 15 | 205 | 1 |
| Pulaski | 6 | 114 | 1 |
| Boone | 6 | 99 | 1 |
| Coles | 6 | 91 | 1 |
| Hamilton | 3 | 66 | 1 |
| White | 9 | 66 | 1 |
| Clay | 5 | 50 | 1 |
| Cass | 5 | 44 | 1 |
| Wabash | 4 | 44 | 1 |
| Jo Daviess | 8 | 43 | 1 |
| Jefferson | 8 | 57 | 0 |
| Alexander | 3 | 42 | 0 |
| Jasper | 2 | 30 | 0 |
| Jersey | 2 | 30 | 0 |
| Edwards | 4 | 29 | 0 |
| Brown | 5 | 18 | 0 |
| Crawford | 4 | 11 | 0 |