Tap Truth EPA drinking water records, in plain English

County drinking water records

St. Clair County, MI drinking water systems

20 community water systems serve St. Clair County, MI, reporting 125,268 people served in all. A system that also serves other counties counts all of its customers here.

3 of them (15%) had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.

5 rely mainly on groundwater and 15 on surface water, counting water bought from other systems.

Their lead service line inventories list 386 lead lines, 468 galvanized lines that must be replaced and 13,915 lines of unknown material.

1 more system is placed in St. Clair County, MI by the county its records name because it has no service area map that lines up with its own records, so it is listed apart and not counted here.

Community water systems
20
People served, sum of each system's own figure
125,268
Systems with a health-based violation, last 10 years
3
Systems with one unresolved
2
Lead service lines in inventories
386

Water systems serving St. Clair County

20 systems

People served is each system's own figure for its whole service area. Violation counts cover the last 10 years of EPA records.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
City of Port Huron Port Huron 33,800 Surface water 0 0 339
Fort Gratiot Township Outside cities and towns 11,616 Purchased surface water 0 0 0
Port Huron Township Outside cities and towns 10,654 Purchased surface water 0 1 1
City of Marysville Marysville 9,959 Surface water 0 0 6
Clay Township Pearl Beach 9,866 Purchased surface water 0 0 0
Ira Township Outside cities and towns 6,510 Surface water 0 0 2
St. Clair Water and Sewer Authority Outside cities and towns 5,847 Surface water 0 0 0
City of St. Clair St. Clair and land outside it 5,485 Surface water 1 0 0
Kimball Township Outside cities and towns 5,170 Purchased surface water 0 0 0
Marine City Marine City 4,652 Surface water 1 0 38
City of Algonac Algonac and land outside it 4,110 Surface water 0 0 0
St. Clair Township Outside cities and towns 3,270 Purchased surface water 0 0 0
Cottrellville Township Outside cities and towns 3,200 Purchased surface water 0 0 0
Burtchville Township Lakeport and land outside it 2,900 Purchased surface water 0 0 0
Clyde Township Outside cities and towns 2,400 Purchased surface water 0 0 0
City of Yale Yale 1,900 Groundwater 1 1 0
Village of Capac Capac 1,775 Groundwater 0 0 0
City of Memphis Memphis 1,084 Groundwater 0 0 0
Pinewood on the Lake MHP Outside cities and towns 950 Groundwater 0 0 0
Sunrise MHP Outside cities and towns 120 Groundwater 0 0 0

Systems placed by county record in St. Clair County

1 system

EPA has no service area map for this system. It is placed by the county its records name (the counties EPA lists it serving, or the county coded in its ID where EPA lists none), and without a map it is not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Dunrentin Heights Subdivision County on record 81 Groundwater 0 0 0

Cities and towns in St. Clair County

9 places

Back to Michigan

Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations