Water Service Outages in Michigan by City
The most common health-based drinking water violation in Michigan since 2015 involves contaminant averages over the limit; 329 of 1,377 systems have had at least one violation.
Michigan drinking water record
Busiest year: 2024 (188 violations). Counted by the year the violation period began. Source: EPA SDWIS.
- Community water systems: 1,377 active systems serve about 7,418,920 people. 1,090 of them (79%) serve 3,300 people or fewer; 1,065 draw mainly on groundwater and 307 on surface water.
- Health-based violations since 2015: 663, at 329 systems (24% of all systems). That share is 15th of 50 states (1 = lowest).
- Most common problems: contaminant averages over the limit (233); water chemistry for corrosion control (46); uncorrected Ground Water Rule deficiencies (41). Source: EPA SDWIS
- Largest system: Detroit City Of, about 633,218 people, with 0 health-based violations since 2015. Source: EPA SDWIS
- Housing age: the median Michigan home was built in 1972 (US 1980). Older housing stock means more lead service lines left to replace. Source: US Census Bureau, ACS 2020–2024 (table B25035)
- Storm damage to water service: NOAA storm narratives mention water mains, boil water notices or lost water service in 5 episodes in Michigan since 2015. Source: NOAA Storm Events Database
- April 4, 2026, Oakland (flood): “The Village of Holly issued a local state of emergency after flooding damaged pumps at its Waste Water Treatment Plant and impacted hundreds of homes.” Source: NOAA Storm Events Database
- December 11, 2024, Charlevoix County (winter storm): “Snowfall totals for Charlevoix county of 12-20 inches, corroborated by cooperative observer reports at East Jordan Wastewater Treatment Plant and Boyne Falls by December 12th of 12.2 and 14.0 inches, respectively.” Source: NOAA Storm Events Database
| System | People served | Main source | Health violations since 2015 |
|---|---|---|---|
| Detroit City Of | 633,218 | Bought surface water | 0 |
| Grand Rapids | 306,901 | Surface water | 0 |
| Kalamazoo | 192,992 | Groundwater | 4 |
| Lansing Board of Water & Light | 166,000 | Groundwater | 0 |
| Warren, City Of | 134,056 | Bought surface water | 0 |
| Sterling Heights, City Of | 127,000 | Bought surface water | 0 |
Source: EPA SDWIS.
Michigan is 1st of 4 (1 = lowest share). Source: EPA SDWIS.
Checked September 2026.
Who to call in Michigan, city by city
10 Michigan cities on this site and the water utility for each. What to do while you wait is in our water service outage guide.
- Detroit Detroit Water and Sewerage Department (DWSD)
- Grand Rapids City of Grand Rapids Water System
- Warren City of Warren Water & Sewerage Department
- Sterling Heights City of Sterling Heights Public Works – Water
- Ann Arbor City of Ann Arbor Water Treatment Services
- Lansing Lansing Board of Water & Light (BWL)
- Dearborn City of Dearborn Water Department
- Livonia City of Livonia Water & Sewer
- Troy City of Troy Public Works – Water
- Flint City of Flint Water Department
Frequently asked questions
Is there a water service outage in Michigan right now?
Not on this site: no reports from Michigan in the last 24 hours.
How many public water systems are in Michigan?
EPA records list 1,377 active community water systems in Michigan, serving about 7,418,920 people. 79% serve 3,300 people or fewer.
How common are drinking water violations in Michigan?
Since 2015, 329 of 1,377 community water systems in Michigan (24%) have had at least one health-based violation, 663 in total.
What is the largest water system in Michigan?
Detroit City Of, which EPA records list as serving about 633,218 people.
Report counts are user-submitted; other figures name their official source. How our data works
Cities in Michigan with Water Service Outages Information
Ann Arbor
no reports in the last 24 hours · pop. 123,851
City of Ann Arbor Water Treatment Services
Dearborn
no reports in the last 24 hours · pop. 94,994
City of Dearborn Water Department
Detroit
no reports in the last 24 hours · pop. 639,111
Detroit Water and Sewerage Department (DWSD)
Flint
no reports in the last 24 hours · pop. 81,005
City of Flint Water Department
Grand Rapids
no reports in the last 24 hours · pop. 198,917
City of Grand Rapids Water System
Lansing
no reports in the last 24 hours · pop. 118,210
Lansing Board of Water & Light (BWL)
Livonia
no reports in the last 24 hours · pop. 93,907
City of Livonia Water & Sewer
Sterling Heights
no reports in the last 24 hours · pop. 134,346
City of Sterling Heights Public Works – Water
Troy
no reports in the last 24 hours · pop. 87,294
City of Troy Public Works – Water
Warren
no reports in the last 24 hours · pop. 139,387
City of Warren Water & Sewerage Department