Michigan
1,384 Utilities
Serving: 7,374,000
Data available: 2010-2015
Contaminants Found: 83
EWG's drinking water quality report for Michigan shows results of tests conducted by the water utilities in Michigan and provided to EWG by the Michigan Department of Environmental Quality.
Below are utilities in Michigan serving over 10,000 people, listed alphabetically. Click the "more" button below to get the full list of utilities serving over 10,000 people.
Large utilities in Michigan
| Utility | Location | People Served |
|---|---|---|
| Adrian | Adrian, MI | 21,133 |
| Allen Park | Allen Park, MI | 28,210 |
| Allendale Township | Allendale, MI | 17,083 |
| Ann Arbor | Ann Arbor, MI | 114,000 |
| Auburn Hills | Auburn Hills, MI | 21,412 |
| Bangor Township | Bay City, MI | 12,688 |
| Battle Creek - Verona System | Battle Creek, MI | 43,975 |
| Benton Harbor | Benton Harbor, MI | 10,038 |
| Berkley | Berkley, MI | 14,970 |
| Beverly Hills | Beverly Hills, MI | 10,451 |
| Big Rapids | Big Rapids, MI | 10,894 |
| Birmingham | Birmingham, MI | 20,103 |
| Bloomfield Township | Bloomfield Hills, MI | 41,070 |
| Bridgeport Township | Bridgeport, MI | 10,514 |
| Brownstown Township | Brownstown Twp, MI | 30,627 |
| Byron-Gaines Utility Authority | Byron Center, MI | 28,846 |
| Canton Township | Canton, MI | 90,173 |
| Chesterfield Township | Chesterfield, MI | 41,650 |
| City of Alpena | Alpena, MI | 10,483 |
| City of Bay City | Bay City, MI | 34,932 |
| City of Burton | Burton, MI | 20,900 |
| City of Cadillac | Cadillac, MI | 10,300 |
| City of Detroit | Fort Gratiot, MI | 713,777 |
| City of East Lansing | East Lansing, MI | 35,139 |
| City of Eastpointe | Eastpointe, MI | 32,442 |
| City of Farmington | Farmington, MI | 10,500 |
| City of Farmington Hills | Farmington Hills, MI | 72,460 |
| City of Fenton | Fenton, MI | 11,746 |
| City of Flint | Flint, MI | 99,763 |
| City of Fraser | Fraser, MI | 16,500 |
Utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Michigan
The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.
Large utilities that accumulated/accrued the most violation points as of October 2014 to September 2017 in Michigan
The Environmental Protection Agency's Enforcement and Compliance History Online (ECHO) database collects compliance and enforcement-related information for drinking water utilities nationwide. ECHO water quality violation scores take into account federal health-based water quality standards, as well as monitoring, reporting and other drinking water quality requirements. Points are accrued based on specific problems at the utility - violations of health-based drinking water standards receive more points than monitoring and reporting violations - and the length of time until the violations were corrected.
| Utility | Location | People Served | Violation Points |
|---|---|---|---|
| City of St. Clair Shores | St. Clair Shores, MI | 59,715 | 1 |
| Marquette | Marquette, MI | 21,000 | 1 |
Contaminants found in Michigan above health guidelines
| Found above health guidelines | Found | ||||||
|---|---|---|---|---|---|---|---|
| Contaminant | # of Utilities | People Served | # of Utilities | People Served | |||
Total trihalomethanes (TTHMs) | 513 | 6,493,784 | 527 | 6,509,573 | |||
Chromium (hexavalent) | 232 | 5,820,746 | 239 | 6,087,586 | |||
Radium-228 | 557 | 5,045,612 | 563 | 5,052,899 | |||
Radium-226 | 614 | 5,039,957 | 627 | 5,054,813 | |||
Bromodichloromethane | 442 | 3,692,828 | 453 | 3,719,190 | |||
Chloroform | 373 | 3,506,838 | 441 | 3,675,575 | |||
Dibromochloromethane | 387 | 3,370,604 | 436 | 3,697,769 | |||
Dichloroacetic acid | 283 | 2,795,803 | 289 | 2,881,404 | |||
Trichloroacetic acid | 288 | 2,706,811 | 295 | 2,838,997 | |||
Arsenic | 123 | 540,850 | 123 | 540,850 | |||
Manganese | 3 | 179,763 | 17 | 202,399 | |||
Chlorate | 12 | 177,057 | 110 | 2,002,382 | |||
Perfluorooctane sulfonate (PFOS) | 4 | 164,729 | 4 | 164,729 | |||
Bromoform | 24 | 118,586 | 215 | 1,347,384 | |||
1,4-Dioxane | 3 | 55,017 | 20 | 636,470 | |||
Trichloroethylene | 1 | 6,366 | 1 | 6,366 | |||
Uranium | 5 | 5,844 | 8 | 9,669 | |||
Antimony | 1 | 5,500 | 4 | 6,412 | |||
Nitrate | 10 | 3,818 | 258 | 1,893,333 | |||
Barium | 3 | 630 | 148 | 816,546 | |||
Contaminants found in Michigan above legal limits
| Contaminant | # of Utilities | People Served | |
|---|---|---|---|
Radium, combined (-226 & -228) | 4 | 24,587 | |
Arsenic | 4 | 9,204 | |
Total trihalomethanes (TTHMs) | 3 | 1,467 |