State | 2020 | 2019-2020 | 2016-2017 | |||||||
Census Data | Violations Chlorine | TTHM | Chlorine | TTHM | ||||||
Population | Income | Systems | Total | [ppm] | [ppb] | [ppm] | [ppb] | % Change | ||
IL | Indiana | 12,506,244 | $72,205 | 32,614 | 76,309 | 1.1 | 26.2 | 1.0 | 28.6 | 9% |
IN | Indiana | 5,461,969 | $62,743 | 18,784 | 82,993 | 2.1 | 48.0 | 1.6 | 61.0 | 27% |
IA | Iowa | 2,951,224 | $65,600 | 18,258 | 25,659 | 2.4 | 20.0 | 2.4 | 21.5 | 6% |
KS | Kansas | 2,828,391 | $64,124 | 11,349 | 18,304 | 1.1 | 10.8 | 1.1 | 10.7 | 1% |
MI | Michigan | 8,735,388 | $63,498 | 22,083 | 73,588 | 1.7 | 3.4 | 1.8 | 4.6 | 1% |
MN | Minnesota | 5,012,820 | $77,720 | 35,547 | 10,301 | 2.7 | 20.2 | 2.7 | 23.5 | 16% |
MO | Missouri | 5,589,463 | $61,847 | 21,770 | 44,439 | 3.4 | 21.1 | 3.4 | 27.8 | 32% |
NE | Nebraska | 1,705,357 | $66,817 | 9677 | 12,373 | 2.2 | 27.5 | 2.2 | 40.2 | 46% |
ND | N. Dakota | 709,655 | $66,519 | 2943 | 4,013 | 3.3 | 24.3 | 3.4 | 27.3 | 12% |
OH | Ohio | 10,914,524 | $62,262 | 32,098 | 84,957 | 1.1 | 55.0 | 1.1 | 56.5 | 3% |
SD | S. Dakota | 814,159 | $66,143 | 4310 | 23,270 | 1.0 | 6.3 | 1.0 | 7.0 | 11% |
WI | Wisconsin | 5,027,143 | $67,125 | 34,404 | 82,289 | 1.3 | 12.2 | 1.5 | 12.2 | 0% |