Tap Truth EPA drinking water records, in plain English

County drinking water records

Walworth County, WI drinking water systems

26 community water systems serve Walworth County, WI, reporting 69,760 people served in all. A system that also serves other counties counts all of its customers here.

8 of them (31%) had at least one health-based violation in the last 10 years. 4 systems still have one unresolved.

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

Their lead service line inventories list 2,162 lead lines, 239 galvanized lines that must be replaced and 6,443 lines of unknown material.

4 more systems are placed in Walworth 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
26
People served, sum of each system's own figure
69,760
Systems with a health-based violation, last 10 years
8
Systems with one unresolved
4
Lead service lines in inventories
2,162

Water systems serving Walworth County

26 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
Whitewater Waterworks Whitewater 14,000 Groundwater 0 0 179
Elkhorn Waterworks Elkhorn 10,317 Groundwater 6 0 364
Delavan Waterworks Delavan 8,451 Groundwater 0 0 626
Lake Geneva Utility Commission Lake Geneva 7,107 Groundwater 0 0 372
East Troy Waterworks East Troy 5,054 Groundwater 0 0 0
Village of Bloomfield Bloomfield 4,071 Groundwater 3 4 0
Lake Como Sanitary Dist 1 Como and Lake Geneva 3,038 Groundwater 0 0 0
Genoa City Waterworks Genoa City 2,766 Groundwater 1 0 164
Williams Bay Waterworks Williams Bay 2,601 Groundwater 1 1 4
Walworth Waterworks Walworth 2,304 Groundwater 1 0 441
Geneva National Community Services Lake Geneva and land outside it 2,250 Groundwater 0 0 0
Fontana Water Utility Fontana-on-Geneva Lake 1,839 Groundwater 1 3 0
Darien Waterworks Darien 1,573 Groundwater 0 0 0
Sharon Waterworks Sharon 1,549 Groundwater 1 6 12
Country Estates Sanitary District Town of Lyons 1 Outside cities and towns 500 Groundwater 0 0 0
Interlaken Resort and Village Lake Geneva and land outside it 500 Groundwater 0 0 0
Pioneer Estates of Delavan Delavan and land outside it 400 Groundwater 0 0 0
Delavan Club Condos Delavan Lake and Delavan 395 Groundwater 0 0 0
Westshire Farms at the Lakes Delavan and land outside it 300 Groundwater 0 0 0
Troy Center Sanitary District Outside cities and towns 170 Groundwater 0 0 0
Troy Terrace MHP Outside cities and towns 150 Groundwater 0 0 0
Coachmans Terrace MHP Lake Geneva and land outside it 125 Groundwater 0 0 0
Ludwell Estates Elkhorn and land outside it 100 Groundwater 1 0 0
Town Hall Apts Delavan and land outside it 90 Groundwater 0 0 0
Inspiration Ministries & Meadows Apts Walworth and land outside it 80 Groundwater 0 0 0
Snug Harbor Inn MHP Turtle Lake and Delavan 30 Groundwater 0 0 0

Systems placed by county record in Walworth County

4 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
Vintage on the Ponds County on record 60 Groundwater 0 1 0
East Troy S D 3 County on record 40 Groundwater 1 2 0
Sage Meadow of Lake Geneva County on record 33 Groundwater 0 0 0
Geneva Landings County on record 25 Groundwater 0 0 0

Cities and towns in Walworth 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