Tap Truth EPA drinking water records, in plain English

County drinking water records

Grant County, SD drinking water systems

4 community water systems serve Grant County, SD, reporting 8,681 people served in all. A system that also serves other counties counts all of its customers here.

1 of them had at least one health-based violation in the last 10 years. None of those systems has one still unresolved.

4 rely mainly on groundwater, counting water bought from other systems.

Their lead service line inventories list 11 lead lines, 0 galvanized lines that must be replaced and 1,517 lines of unknown material.

1 more system is placed in Grant County, SD 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
4
People served, sum of each system's own figure
8,681
Systems with a health-based violation, last 10 years
1
Systems with one unresolved
0
Lead service lines in inventories
11

Water systems serving Grant County

4 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
Grant-Roberts Rural Water System South Shore, Big Stone City and 10 more and land outside them 5,050 Groundwater 0 0 0
Milbank Milbank 3,200 Groundwater 0 0 11
Big Stone City Big Stone City 412 Purchased groundwater 0 0 0
Marvin Marvin 19 Groundwater 1 0 0

Systems placed by county record in Grant 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
Sunrise Colony County on record 94 Groundwater 1 0 0

Cities and towns in Grant County

9 places

Back to South Dakota

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