Illinois Installations
| City | Plant | Contact | Phone |
| Bloomington | Bloomington WWTP | Bob Carter | 309-827-4396 |
| Chicago | Kirie Water Rec. Plant | Usman Baki | 847-375-2502 |
| Glen Elyn | Glenbard WWTP | Erik Lanphier | 630-790-1901 |
| Marion | Federal Bureau of Prisons | Brian Davis | 618-964-1441 (ex 452) |
| Mascoutah | Mascouta WWTP | Rick Jones | 618-566-2954 |
| Plainfield | Plainfield WWTP | Harry Countrymen | 815-436-7093 |
| Princeton | Princeton WWTP | Scott Wallis | 815-879-3961 |
| Swansea | Swansea WWTP | Frank Nadler | 618-234-8720 |
| Tuscola | Southside WWTP | Ronnie Stabler | 217-253-3414 |
| West Chicago | West Chicago WWTP | Terry Breen | 630-293-2261 |
| Woodstock | Woodstock | Jeff Van Landut | 815-338-2660 |
