Water quality in Griswold, Iowa
Griswold is in Cass County. 14 active public water systems serve the county; 7 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Cass County
6 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lewis Water Supply Lewis |
357 | 1 | 5.2 mi | |
| Atlantic Municipal Utilities Atlantic |
7,252 | 0 | 12.5 mi | |
| Cumberland Water Supply Cumberland |
266 | 0 | 14.6 mi | |
| Wiota Water Works Wiota |
95 | 3 | 17.2 mi | |
| Massena Water Supply Massena |
364 | 5 | 19.7 mi | |
| Anita Municipal Utilities Anita |
972 | 0 | 23.9 mi |
Non-community systems in Cass County (7: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Cocklin Fish Farm Griswold |
65 | 0 | 0 | |
|
Griswold Golf and Country Club Lewis |
43 | 0 | 0 | |
|
Hitchcock House Lewis |
216 | 1 | 1 | |
|
Vermeer (griswold) Lyman |
52 | 0 | 0 | |
|
Church of Jesus Christ of Lds (atlantic) Atlantic |
80 | 2 | 1 | |
|
Atlantic Head Start Atlantic |
25 | 0 | 0 | |
|
Bluebird Hill Atlantic |
150 | 3 | 0 |
About this data
Water systems are matched to Cass County, nearest to Griswold 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.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.