Tap Truth EPA drinking water records, in plain English

County drinking water records

Monroe County, WI drinking water systems

11 community water systems serve Monroe County, WI, reporting 33,190 people served in all.

4 of them (36%) had at least one health-based violation in the last 10 years. 2 systems still have one unresolved.

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

Their lead service line inventories list 5 lead lines, 59 galvanized lines that must be replaced and 570 lines of unknown material.

Community water systems
11
People served, sum of each system's own figure
33,190
Systems with a health-based violation, last 10 years
4
Systems with one unresolved
2
Lead service lines in inventories
5

Water systems serving Monroe County

11 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
Sparta Waterworks Sparta 10,025 Groundwater 0 0 0
Fort McCoy North Post Outside cities and towns 10,000 Groundwater 0 0 0
Tomah Waterworks Tomah 9,192 Groundwater 9 0 0
Cashton Waterworks Cashton 1,120 Groundwater 0 0 0
Norwalk Waterworks Norwalk 653 Groundwater 0 0 0
Warrens Waterworks Warrens 540 Groundwater 0 0 0
Wilton Waterworks Wilton 490 Groundwater 2 0 0
Kendall Waterworks Kendall 458 Groundwater 3 4 5
Oakdale Waterworks Oakdale 317 Groundwater 1 0 0
Fort McCoy South Post Outside cities and towns 250 Groundwater 0 0 0
Cortland Acres Sparta and land outside it 145 Groundwater 0 1 0

Cities and towns in Monroe County

8 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