| Business | Phone |
| Rock Creek Public Sewer Dist 2702 Adobe Dr, Imperial 63052 | (636) 287-9488 |
| Rock Creek Public Sewer Dist 5124 Warren Rd, Imperial 63052 | (636) 464-3305 |
| Glaize Creek Sewer District 750 Sulphur Springs Rd, Imperial 63052 | (636) 464-3230 |
| House Springs Sewer Co 4089 Country Club Dr, Imperial 63052 | (636) 282-1855 |