Michigan Installations
| City | Plant | Contact | Phone |
| Grand Rapids | Grand Rapids WWTP | Randy Fisher | 616-456-3638 |
| Howell | Genoa-Oceola Township WWTP | Leroy Smith | 512-545-1272 |
| Howell | Howell Township WWTP | Steve Hasbrouck | 517-546-0040 |
| Lansing | Lansing WWTP | Paul Stokes | 517-483-4404 |
| Kalamazoo | Kalamazoo WRP | Ronald Wilson | 616-337-8157 |
| Munising | Kimberly-Clark WWTF | Sheila Zehr | 906-387-2700 |
| Rockwood | South Huron Valley WWTP | Tom High | 734-379-3855 |
| Walled Lake | So. Commerce Township WWTP | Frank J. Richard | 248-669-1256 |
