Water quality in Crystal Lake, Iowa
Crystal Lake is in Hancock County. 18 active public water systems serve the county; 7 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 Hancock County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Woden Water Supply Woden |
188 | 3 | 5.8 mi | |
| Britt Water Works Britt |
2,064 | 2 | 8.7 mi | |
| Garner Water Works Garner |
3,065 | 0 | 12.7 mi | |
| Klemme Water Works Klemme |
441 | 1 | 17.7 mi | |
| Corwith Water Supply Corwith |
266 | 0 | 17.9 mi | |
| Kanawha Water Supply Kanawha |
658 | 0 | 19.9 mi | |
| Goodell Water Supply Goodell |
140 | 0 | 22.5 mi |
Non-community systems in Hancock County (10: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Michael Foods Britt Britt |
110 | 1 | 0 | |
|
Hancock County Fairgrounds Britt |
27 | 1 | 0 | |
|
Hillside Golf Wesley |
62 | 1 | 0 | |
|
New Horizon Coop/opal Foods Britt Britt |
30 | 0 | 0 | |
|
Pilot Knob Lutheran Church Forest City |
60 | 0 | 0 | |
|
Peace Reformed Church Garner |
105 | 3 | 1 | |
|
ST John Lutheran Church Garner |
98 | 0 | 0 | |
|
Hawkeye Pride Egg Farm LLP Corwith |
100 | 0 | 0 | |
|
Slippery Elm Golf Course Klemme |
50 | 0 | 0 | |
|
Eldred Sherwood Park Goodell |
45 | 0 | 0 |
About this data
Water systems are matched to Hancock County, nearest to Crystal Lake 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.
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.