Water quality for ZIP code 50658
ZIP 50658 covers Nashua in Chickasaw County, Iowa, one of 6 ZIP codes in the county. 21 active public water systems serve the county; 10 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Chickasaw County
5 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ionia Water Supply Ionia |
226 | 0 | 6.6 mi | |
| New Hampton Water Supply New Hampton |
3,494 | 0 | 13.4 mi | |
| Fredericksburg Water Supply Fredericksburg |
987 | 0 | 17.2 mi | |
| Alta Vista Water Department Alta Vista |
227 | 0 | 17.5 mi | |
| Lawler Water Supply Lawler |
406 | 1 | 21.0 mi |
Non-community systems in Chickasaw County (15: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Nashua Town and Country Club Nashua |
60 | 1 | 0 | |
|
Little Brown Church Nashua |
183 | 1 | 0 | |
|
Bradford Guest House Nashua |
50 | 0 | 0 | |
|
River Ranch Camping INC Nashua |
37 | 1 | 0 | |
|
Bodensteiner Implement INC (nh) New Hampton |
60 | 2 | 0 | |
|
Airport Lake Park-Chickasaw Ccb New Hampton |
124 | 0 | 0 | |
|
Twin Ponds West Chickasaw Ccb New Hampton |
75 | 0 | 0 | |
|
Five Star Cooperative New Hampton |
97 | 1 | 0 | |
|
Vern Laures Auto Center INC New Hampton |
48 | 1 | 0 | |
|
Split Rock Park New Hampton |
52 | 0 | 0 | |
|
New Hampton Golf & Country Club New Hampton |
57 | 0 | 0 | |
|
Plum Creek Golf Club Fredericksburg |
25 | 2 | 0 | |
|
Homeland Energy Solution LLC New Hampton |
60 | 0 | 0 | |
|
Jerico Jos Jerico |
28 | 1 | 0 | |
|
The Balk Tank Lawler |
25 | 2 | 0 |
About this data
Water systems are matched to Chickasaw County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Iowa records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.