Tap Truth EPA drinking water records, in plain English

County drinking water records

Dane County, WI drinking water systems

42 community water systems serve Dane County, WI, reporting 487,075 people served in all. A system that also serves other counties counts all of its customers here.

13 of them (31%) had at least one health-based violation in the last 10 years. 17 systems still have one unresolved.

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

Their lead service line inventories list 24 lead lines, 22 galvanized lines that must be replaced and 6,397 lines of unknown material.

5 more systems are placed in Dane 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
42
People served, sum of each system's own figure
487,075
Systems with a health-based violation, last 10 years
13
Systems with one unresolved
17
Lead service lines in inventories
24

Water systems serving Dane County

42 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
Madison Water Utility Madison 272,000 Groundwater 1 1 2
Sun Prairie Utilities Sun Prairie 33,966 Groundwater 1 0 0
Fitchburg Utility Dist 1 Fitchburg 24,500 Groundwater 0 0 0
Middleton Waterworks Middleton 23,868 Groundwater 1 2 0
Waunakee Waterworks Waunakee 14,879 Groundwater 0 0 0
Verona Waterworks Verona 14,030 Groundwater 1 1 0
Stoughton Waterworks Stoughton 13,078 Groundwater 0 0 0
Oregon Waterworks Oregon 11,200 Groundwater 0 0 0
Deforest Waterworks DeForest 10,500 Groundwater 1 1 13
McFarland Waterworks McFarland 9,676 Groundwater 0 0 0
Cottage Grove Waterworks Cottage Grove 9,345 Groundwater 1 1 0
Monona Waterworks Monona 8,624 Groundwater 0 0 0
Mt Horeb Waterworks Mount Horeb 7,756 Groundwater 0 1 1
Windsor Water Utility South Windsor 4,607 Groundwater 0 0 0
Cross Plains Waterworks Cross Plains 4,100 Groundwater 0 0 0
Marshall Waterworks Marshall 3,862 Groundwater 1 0 0
Mendota Mental Health Inst Madison and land outside it 2,787 Groundwater 0 1 0
Deerfield Waterworks Deerfield 2,510 Groundwater 0 0 3
Mazomanie Waterworks Mazomanie 1,744 Groundwater 0 0 0
Shorewood Hills Waterworks Shorewood Hills and Madison 1,670 Purchased groundwater 0 4 0
Cambridge Water & Sewer Utility Cambridge 1,638 Groundwater 1 2 0
Brooklyn Waterworks Brooklyn 1,524 Groundwater 0 0 0
Black Earth Waterworks Black Earth 1,493 Groundwater 1 1 0
Maple Bluff Waterworks Maple Bluff and Madison 1,342 Purchased groundwater 0 4 0
Dane Waterworks Dane 1,117 Groundwater 0 0 0
Oakhill Correctional Inst Fitchburg and Oregon 1,096 Groundwater 1 2 0
Blue Mounds Waterworks Blue Mounds 950 Groundwater 0 0 0
Westport Water Utility Waunakee and land outside it 800 Groundwater 0 1 0
Bay View Heights Inc Stoughton and land outside it 450 Groundwater 1 0 0
Lake Forest Water Coop Madison 400 Groundwater 2 2 5
Windsor Water Utility North Windsor 400 Groundwater 0 0 0
Fitchburg Utility Dist 1 South Fitchburg 350 Groundwater 0 0 0
Dons Mobile Manor Waunakee and land outside it 160 Groundwater 0 2 0
Applewood Hill Madison and land outside it 125 Groundwater 0 0 0
Mazomanie MHP Mazomanie and land outside it 85 Groundwater 0 0 0
Country View Mobile Home Community LLC Fitchburg and Oregon 80 Groundwater 3 2 0
East Bristol Utility Coop Sun Prairie and land outside it 80 Groundwater 0 0 0
Country View Estates Deerfield and land outside it 65 Groundwater 0 1 0
Lake Pointe Apts - Well 1 5320-5326 Waunakee and Madison 60 Groundwater 0 0 0
Lake Pointe Apts - Well 2 5312-5318 Madison and land outside it 60 Groundwater 0 0 0
Lake Pointe/Marina Bay Madison and land outside it 50 Groundwater 0 0 0
Woodbridge Estates Madison 48 Groundwater 0 0 0

Systems placed by county record in Dane County

5 systems

EPA has no service area map for these systems. 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
Danville Drive Service Area County on record 150 Purchased groundwater 0 1 0
Rimrock Road Neighborhood County on record 135 Purchased groundwater 0 4 0
Westport Bishops Bay Area County on record 80 Purchased groundwater 0 0 0
Pine Ridge Apts County on record 45 Groundwater 0 0 0
Country Vineyard 4 County on record 28 Groundwater 1 0 0

Cities and towns in Dane County

26 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