ONWASA provides sewer service for a smaller geographical area than our water service, so many of our water customers receive sewer service from another provider.
Our sewer service area includes the following communities: Hickory Grove, Holly Ridge, Hunters Creek, Kenwood, North Topsail Beach, Parrot Landing, Piney Green, Queens Harbor, Richlands, Sneads Ferry, Southbranch, Sprindale, Summerhouse, Swansboro, Town Point, Webb Apartments, and Webb Creek.
For our water customers outside of these areas, public sewer service may be provided by one of the utilities listed below. ONWASA is the billing agent for some of these sewer providers, but we do not set rates or manage the sewer infrastructure for these agencies.
| SEWER PROVIDER | PHONE NUMBER |
| AQUA | (877) 987-2782 |
| BLUE CREEK UTILITIES | (910) 554-7457 |
| CAROLINA WATER SERVICE | (910) 272-1919 |
| CITY OF JACKSONVILLE | (910) 938-5248 |
| OLD NORTH STATE WATER CO. | (877) 511-2911 |
| SCIENTIFIC WATER & SEWER | (910) 455-3743 |
| TOWN OF SURF CITY | (910) 328-4131 |
| WHITE OAK LANDING HOA | (910) 326-2943 |