Wastewater Treatment Process
- How It Works
![](images/Old-Trickling-Filter.jpg)
Coon Rapids was served by a trickling filter sewer plant for many years. But by the early 1970's, the plant was judged to be overloaded and beyond repair.
![](images/lagoons.jpg)
The old plant, located on the far east end of town behind the Syngenta Seed Co. plant, was demolished in favor of a newer Facultative Lagoon System installed in 1977 east of Coon Rapids near Highway 141.
The cost of the lagoon system reached $660,000, of which 75% was funded by federal and state grants.