Tap Truth EPA drinking water records, in plain English

County drinking water records

Monona County, IA drinking water systems

9 community water systems serve Monona County, IA, reporting 5,972 people served in all. A system that also serves other counties counts all of its customers here.

None of them had a health-based violation in the last 10 years.

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

Their lead service line inventories list 170 lead lines, 158 galvanized lines that must be replaced and 1,293 lines of unknown material.

Community water systems
9
People served, sum of each system's own figure
5,972
Systems with a health-based violation, last 10 years
0
Systems with one unresolved
0
Lead service lines in inventories
170

Water systems serving Monona County

9 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
Onawa Municipal Water Plant Onawa 2,906 Groundwater 0 0 107
Mapleton Municipal Water Plant Mapleton 1,124 Groundwater 0 0 0
Whiting Water Supply Whiting 727 Groundwater 0 0 0
Ute Water Supply Ute 338 Groundwater 0 0 0
Blencoe Municipal Waterworks Blencoe 224 Groundwater 0 0 0
Moorhead Water Supply Moorhead 189 Groundwater 0 0 0
Smithland Water Supply Smithland and Rodney 181 Groundwater 0 0 0
Soldier Water Supply Soldier 180 Groundwater 0 0 0
Castana Municipal Water Supply Castana 103 Groundwater 0 0 63

Cities and towns in Monona County

9 places

Back to Iowa

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