Tap Truth EPA drinking water records, in plain English

County drinking water records

Day County, SD drinking water systems

10 community water systems serve Day County, SD, reporting 31,825 people served in all. A system that also serves other counties counts all of its customers here.

1 of them (10%) 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 and 6 on surface water, counting water bought from other systems.

Their lead service line inventories list 1 lead line, 0 galvanized lines that must be replaced and 7,752 lines of unknown material.

1 more system is placed in Day 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
10
People served, sum of each system's own figure
31,825
Systems with a health-based violation, last 10 years
1
Systems with one unresolved
0
Lead service lines in inventories
1

Water systems serving Day County

10 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
Web Water Development Association Aberdeen, Mina and 49 more and land outside them 20,750 Surface water 0 0 0
Brown-Day-Marshall RWS Long Hollow, Agency Village and 11 more and land outside them 5,673 Groundwater 0 0 0
Clark Rural Water System Crocker, Clark and 7 more and land outside them 2,325 Groundwater 0 0 0
Webster Webster 1,728 Purchased surface water 0 0 1
Waubay Waubay 473 Groundwater 0 0 0
Bristol Bristol 288 Purchased surface water 3 0 0
Enemy Swim Water System Enemy Swim 230 Purchased surface water 0 0 0
Roslyn Roslyn 181 Purchased surface water 0 0 0
Pierpont Pierpont 129 Purchased groundwater 0 0 0
Grenville Grenville 48 Purchased surface water 0 0 0

Systems placed by county record in Day 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
Clark Rural Water-Kampeska County on record 602 Groundwater 0 0 0

Cities and towns in Day 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