Tap Truth EPA drinking water records, in plain English

County drinking water records

Sauk County, WI drinking water systems

23 community water systems serve Sauk County, WI, reporting 43,496 people served in all. A system that also serves other counties counts all of its customers here.

10 of them (43%) had at least one health-based violation in the last 10 years. 7 systems still have one unresolved.

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

Their lead service line inventories list 624 lead lines, 409 galvanized lines that must be replaced and 3,143 lines of unknown material.

4 more systems are placed in Sauk County, WI by the county their records name because they have no service area map that lines up with their own records, so they are listed apart and not counted here.

Community water systems
23
People served, sum of each system's own figure
43,496
Systems with a health-based violation, last 10 years
10
Systems with one unresolved
7
Lead service lines in inventories
624

Water systems serving Sauk County

23 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
Baraboo Waterworks Baraboo and West Baraboo 12,703 Groundwater 0 0 591
Reedsburg Waterworks Reedsburg 9,984 Groundwater 0 0 0
Prairie Du Sac Waterworks Prairie du Sac 4,006 Groundwater 1 1 0
Sauk City Waterworks Sauk City 3,518 Groundwater 0 0 33
Wisconsin Dells Waterworks Wisconsin Dells 3,232 Groundwater 1 0 0
Lake Delton Waterworks Lake Delton and land outside it 2,914 Groundwater 0 0 0
Spring Green Waterworks Spring Green 1,626 Groundwater 0 0 0
West Baraboo Waterworks West Baraboo and Baraboo 1,414 Groundwater 0 0 0
Plain Waterworks Plain 792 Groundwater 1 1 0
North Freedom Waterworks North Freedom 589 Groundwater 0 0 0
Bluffview Sanitary District Bluffview and Prairie du Sac 450 Groundwater 1 1 0
Merrimac Waterworks Merrimac 440 Groundwater 2 2 0
La Valle Waterworks La Valle 365 Groundwater 6 0 0
Loganville Waterworks Loganville 300 Groundwater 0 0 0
Rock Springs Waterworks Rock Springs 292 Groundwater 2 0 0
Ironton Waterworks Ironton and La Valle 253 Groundwater 2 2 0
Ho Chunk Village Outside cities and towns 196 Groundwater 0 0 0
Maple Park Condominiums Bluffview and Prairie du Sac 150 Groundwater 1 2 0
Lower Dells MHC Lake Delton and land outside it 75 Groundwater 0 0 0
Equinox Rei LLC Dellwood Estates Reedsburg and land outside it 70 Groundwater 0 0 0
Dell Creek Estates Reedsburg and land outside it 50 Groundwater 0 0 0
Spring Green Estates South Spring Green and land outside it 40 Groundwater 1 1 0
Merrimac Estates MHP Merrimac and land outside it 37 Groundwater 0 0 0

Systems placed by county record in Sauk County

4 systems

EPA has no service area map for some of these systems, and the maps it has for the others do not line up with their own records. They are placed by the county their records name (the counties EPA lists them serving, or the county coded in their IDs where EPA lists none), and without a map they are not counted in the figures above.

System Serves People served Main source Health-based violations, 10 years Unresolved Lead lines
Spring Green Estates County on record 300 Groundwater 0 0 0
Glacier View Subdivision County on record 75 Groundwater 0 1 0
Summer Oaks Condo Assoc County on record 70 Groundwater 0 0 0
Spring Green Estates North County on record 32 Groundwater 0 0 0

Cities and towns in Sauk County

15 places

Back to Wisconsin

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