Tap Truth EPA drinking water records, in plain English

County drinking water records

Columbia County, WI drinking water systems

25 community water systems serve Columbia County, WI, reporting 38,130 people served in all. A system that also serves other counties counts all of its customers here.

13 of them (52%) had at least one health-based violation in the last 10 years. 8 systems still have one unresolved.

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

Their lead service line inventories list 213 lead lines, 342 galvanized lines that must be replaced and 4,913 lines of unknown material.

2 more systems are placed in Columbia 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
25
People served, sum of each system's own figure
38,130
Systems with a health-based violation, last 10 years
13
Systems with one unresolved
8
Lead service lines in inventories
213

Water systems serving Columbia County

25 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
Portage Waterworks Portage 10,437 Groundwater 0 0 0
Columbus Utilities Columbus 5,173 Groundwater 2 1 151
Wisconsin Dells Waterworks Wisconsin Dells 3,232 Groundwater 1 0 0
Lodi Waterworks Lodi 3,146 Groundwater 2 1 55
Poynette Waterworks Poynette 2,520 Groundwater 1 0 0
Pardeeville Waterworks Pardeeville 2,151 Groundwater 0 0 3
Harmony Grove San Dist Lake Wisconsin and Lodi 1,950 Groundwater 0 0 0
Randolph Water Dept Randolph 1,800 Groundwater 5 1 4
Fall River Waterworks Fall River 1,793 Groundwater 1 1 0
Rio Waterworks Rio 1,095 Groundwater 1 2 0
Arlington Waterworks Arlington 823 Groundwater 4 1 0
Wyocena Waterworks Wyocena 768 Groundwater 0 0 0
Cambria Waterworks Cambria 767 Groundwater 1 0 0
Crystal Lake RV Resort LLC Lodi and land outside it 725 Groundwater 4 0 0
Saddle Ridge Estates Portage and land outside it 700 Groundwater 1 2 0
Friesland Waterworks Friesland 345 Groundwater 3 0 0
Poynette Mobile Estates Poynette 150 Groundwater 5 5 0
Ho-Chunk Che-Nunk Outside cities and towns 132 Groundwater 0 0 0
Oakwood Terrace Portage and land outside it 100 Groundwater 0 0 0
Suburban Heights MHP Portage and land outside it 90 Groundwater 0 0 0
Pine Vista MHP 1 Outside cities and towns 60 Groundwater 0 0 0
Inch Heights LLC Poynette and land outside it 47 Groundwater 0 0 0
Harmony Mobile Manor Lodi and land outside it 45 Groundwater 0 0 0
Pine Haven Estates Doylestown 45 Groundwater 0 0 0
Capital Hill Mobile Home Park Poynette and land outside it 36 Groundwater 0 0 0

Systems placed by county record in Columbia County

2 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
Wisconsin Academy Main Campus County on record 115 Groundwater 0 0 0
Dells Estates County on record 30 Groundwater 1 2 0

Cities and towns in Columbia County

14 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