Iowa
Cass County drinking water quality
14 active public water systems serve 10,945 people in Cass County. 7 are compliant, 7 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
7 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Atlantic Municipal Utilities Atlantic |
7,252 | 0 | 0 | |
|
Griswold Water Supply Griswold |
1,008 | 1 | 0 | |
|
Anita Municipal Utilities Anita |
972 | 0 | 0 | |
|
Massena Water Supply Massena |
364 | 5 | 1 | |
|
Lewis Water Supply Lewis |
357 | 1 | 0 | |
|
Cumberland Water Supply Cumberland |
266 | 0 | 0 | |
|
Wiota Water Works Wiota |
95 | 3 | 0 |
Non-community systems (7: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hitchcock House Lewis |
216 | 1 | 1 | |
|
Bluebird Hill Atlantic |
150 | 3 | 0 | |
|
Church of Jesus Christ of Lds (atlantic) Atlantic |
80 | 2 | 1 | |
|
Cocklin Fish Farm Griswold |
65 | 0 | 0 | |
|
Vermeer (griswold) Lyman |
52 | 0 | 0 | |
|
Griswold Golf and Country Club Lewis |
43 | 0 | 0 | |
|
Atlantic Head Start Atlantic |
25 | 0 | 0 |
Inactive systems (23, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.