Reducing lead from distribution systems
Lead in Drinking Water Policy – Michigan
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| Program Component | Status | Details |
|---|---|---|
| Action level exceedances must be reported to consumers |  | Under the federal Lead and Copper Rule, the results of lead testing must be reported to the people who receive water from the sampling location within 30 days of receiving the results, and public notification and education is required if lead concentrations exceed the action level in more than 10 percent of taps sampled. |
| Lead in drinking water test results must be reported to local public health agencies |  | Michigan does not require lead in drinking water tests to be reported to public health agencies. |
| Schools and childcare facilities are required to test for lead in drinking water* | | Michigan requires lead in drinking water testing to be conducted annually in schools and at least once every two years in childcare facilities. |
| Action level is at or below 12 ppb*^ | | Michigan established an action level for lead of 12 ppb, which goes into effect on January 1, 2025. |
| Action level is at or below 5 ppb for schools and childcare facilities*^ | | Michigan established an action level of 5 ppb for both schools and childcare facilities. |
| Service line material inventory is required under state law | | Preliminary water distribution system material inventories were due by January 1, 2020 in Michigan, although suppliers are not required to submit their full inventories until January 1, 2025. |
| Partial lead service line replacement is prohibited* | | Michigan prohibits partial lead service line reporting and replacement, barring exceptions for emergency situations. |
Program components are marked with an asterisk ( * ) if the GLLC model policy goes beyond what is required by the LCRR, and marked with a caret (^) to denote LCRI-derived components.
Legend
| Jurisdiction implements this program component |
| Jurisdiction does not implement this program component |
 | Jurisdiction partially implements this program component |
Date Accessed: June 15, 2025