Iowa
Black Hawk County drinking water quality
18 active public water systems serve 161,165 people in Black Hawk County. 13 are compliant, 5 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
11 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Waterloo Water Works Waterloo |
69,504 | 0 | 0 | |
|
Cedar Falls Municipal Water Utilities Cedar Falls |
40,713 | 0 | 0 | |
|
IA Regional Utilities Assoc (waverly) Waverly |
37,820 | 0 | 0 | |
|
Evansdale Water Works Evansdale |
4,561 | 0 | 0 | |
|
Hudson Water Supply Hudson |
2,546 | 1 | 0 | |
|
LA Porte City Utilities La Porte City |
2,284 | 1 | 0 | |
|
Elk Run Heights Water Supply Elk Run Heights |
1,069 | 0 | 0 | |
|
Dunkerton Muni Water Supply Dunkerton |
842 | 0 | 0 | |
|
Gilbertville Water Works Gilbertville |
796 | 1 | 1 | |
|
Cedar Falls Mobile Home Village Cedar Falls |
388 | 0 | 0 | |
|
Lenwood Utilities Dunkerton |
238 | 0 | 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 |
|---|---|---|---|---|
|
Pheasant Ridge Pro Shop Cedar Falls |
155 | 0 | 0 | |
|
Farmstead Preschool Cedar Falls |
50 | 0 | 0 | |
|
Gilbertville Depot Gilbertville |
40 | 1 | 0 | |
|
Island Park Beach House Cedar Falls |
40 | 0 | 0 | |
|
LA Porte City Golf Club La Porte City |
40 | 1 | 1 | |
|
McFarlane Park La Porte City |
40 | 0 | 0 | |
|
Barn Happy Cedar Falls |
39 | 0 | 0 |
Inactive systems (74, 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.