| Business | Phone |
| Opelika Wastewater Treatment 1017 Grand National Pkwy, Opelika 36801 | (334) 705-5470 |
| Opelika Wastewater Treatment 3010 Columbus Pkwy, Opelika 36804 | (334) 705-5475 |
| Opelika Water Works Board 502 Geneva St, Opelika 36801 | (334) 705-5500 |
| Opelika Water Works Repairs 2101 Steel St, Opelika 36804 | (334) 705-5500 |