| Business | Phone |
| Calhoun Water & Sewer Constr 120 N Louise Ave, Calhoun 30701 | (706) 629-4750 |
| Calhoun Water & Sewer Constr 260 Kirby Rd Nw, Calhoun 30701 | (706) 629-4750 |
| Calhoun Water Treatment Plant 201 Commercial St, Calhoun 62465 | (217) 644-2212 |
| Calhoun Water Treatment Plant 500 Mauldin Rd, Calhoun 30701 | (706) 629-2585 |