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| Sewer | 24.0681 | The Pointe Wastewater Treatment STEP Sewer System | STEP | CD | - | 13-DEC-2024 | Pending | - | - | Clay | Cookeville |
| Sewer | 24.0717 | Fanning Bend Phase 2 Revision of Lots 29 and 30 | STEP | CD | Tennessee Wastewater Systems, Inc. | 17-SEP-2024 | Approved | 18-OCT-2024 | St. John Engineering | Franklin | Columbia |
| Sewer | 24.0180 | I&I Reduction / Sewer Rehabilitation | STEP | CD | Ridgetop | 08-MAR-2024 | Approved | 15-APR-2024 | FOXPE LLC | Robertson | Nashville |
| Sewer | 23.0639 | Eagleview Estates Phase 2 | STEP | CD | Eagleville | 30-NOV-2023 | Approved | 05-DEC-2023 | T-Square Engineering | Rutherford | Nashville |
| Sewer | 23.0466 | Wynwood Park Phase 3 | STEP | CD | Wynwood Park S/D | 05-OCT-2023 | Approved | 09-OCT-2023 | Crunk Engineering LLC | Williamson | Nashville |
| Sewer | 23.0252 | Starnes Creek Forcemain Extension | STEP | CD | Tennessee Wastewater Systems, Inc. | 05-SEP-2023 | Approved | 25-SEP-2023 | Landmark Engineering Group, Inc. | Williamson | Nashville |
| Sewer | 23.0309 | Fanning Bend Phase 7 (19 lots) | STEP | CD | Tennessee Waste Water-Adenus Utility | 14-JUN-2023 | Approved | 30-JUN-2023 | St. John Engineering | Franklin | Columbia |
| Sewer | 23.0088 | Madeline Farms Subdivision Phase 3 | STEP | CD | Piperton | 06-JUN-2023 | Approved | 09-JUN-2023 | McCarty Granberry Engineering | Fayette | Memphis |
| Sewer | 23.0262 | Lakes of Greenbriar sewer extenstion | STEP | CD | Piperton | 23-MAY-2023 | Approved | 13-JUN-2023 | McCarty Granberry Engineering | Fayette | Memphis |
| Sewer | 23.0190 | Hickory Isles Treatment Facility and Collection System for Hickory Isles Subdivision Lot 12 | STEP | CD | Water and Wastewater Authority of Wilson County | 05-APR-2023 | Approved | 14-AUG-2023 | SEC, Inc. | Wilson | Nashville |
| Sewer | 23.0184 | Paint Rock Ferry Rd. Low Pressure Forcemain to Serve Long Island Marina | STEP | CD | Watts Bar Utility District | 31-MAR-2023 | Approved | 09-JUN-2023 | Ivins & Ivins Engineering, Inc. | Roane | Knoxville |
| Sewer | 23.0122 | Hickory Withe Estates (46 lots) | STEP | CD | Oakland | 28-MAR-2023 | Approved | 29-MAR-2023 | Renaissance Design Engineer | Fayette | Memphis |
| Sewer | 23.0151 | Sugar Flat Lot 2A | STEP | CD | Water and Wastewater Authority of Wilson County | 20-MAR-2023 | Approved | 19-APR-2023 | SEC, Inc. | Wilson | Nashville |
| Sewer | 23.0163 | Long Island Marina Collection System | STEP | PPD | Watts Bar Utility District | 14-MAR-2023 | Review Complete | - | IVINS & IVINS | Roane | Knoxville |
| Sewer | 21.0558R | Hawthorne Valley Phase 1 & 2 (WPN21.0558R) | STEP | CD | Water and Wastewater Authority of Wilson County | 08-MAR-2023 | Approved | 15-JUN-2023 | SEC, Inc. | Wilson | Nashville |
| Sewer | 22.0720 | Wayside Acres Extension | STEP | CD | Coffee County | 09-DEC-2022 | Approved | 12-DEC-2022 | St. John Engineering, LLC | Coffee | Columbia |
| Sewer | 22.0547 | Hwy 12 & Little Marrowbone Townhomes | STEP | CD | Ashland City | 10-OCT-2022 | Approved | 12-OCT-2022 | Klober Engineering Services | Cheatham | Nashville |
| Sewer | 22.0640 | Jason Drive Proposed Sewer Force Main (15 lots) | STEP | CD | Marshall County | 07-OCT-2022 | Approved | 14-NOV-2022 | Ferlisi Civil Design | Marshall | Columbia |
| Sewer | 22.0451 | Lake Haven Subdivision (103 lots) | STEP | CD | Tennessee Wastewater Systems, Inc. | 26-SEP-2022 | Approved | 16-DEC-2022 | SEC, Inc. | Jefferson | Knoxville |
| Sewer | 22.0417R | ISHA Studios STEP | STEP | CD | - | 26-SEP-2022 | Approved | 03-OCT-2022 | SEC, Inc | Van Buren | Cookeville |
| Sewer | 22.0560 | Breckenridge Glen Sd / Logue Rd TF | STEP | CD | Logue Road Treatment Facility | 30-AUG-2022 | Approved | 29-SEP-2022 | SEC, Inc. | Wilson | Nashville |
| Sewer | 22.0290 | Heartland Estates | STEP | CD | Tennessee Wastewater Systems, Inc. | 20-JUL-2022 | Inactive | - | Klober Engineering Services | Robertson | Nashville |
| Sewer | 22.0405 | Lake Road Sewer Extension | STEP | CD | Ridgetop | 14-JUL-2022 | Approved | 22-JUL-2022 | FOXPE, LLC | Robertson | Nashville |
| Sewer | 22.0362 | ISHA Studios STEP | STEP | PPD | - | 22-JUN-2022 | Review Complete | - | SEC, Inc. | Van Buren | Cookeville |
| Sewer | 22.0361 | ISHA Enclave STEP Phase 1 | STEP | PPD | - | 22-JUN-2022 | Review Complete | - | SEC, Inc. | Van Buren | Cookeville |
| Sewer | 22.0418 | ISHA Enclave STEP Phase 1 (263 units) | STEP | CD | - | 15-JUN-2022 | Approved | 03-OCT-2022 | SEC, Inc. | Van Buren | Cookeville |
| Sewer | 22.0355 | Barkley SD Logue Rd | STEP | CD | Logue Road Treatment Facility | 24-MAY-2022 | Approved | 06-JUN-2022 | SEC, Inc. | Wilson | Nashville |
| Sewer | 22.0264 | Reserve at Wright Farms Phase 3 | STEP | CD | Water and Wastewater Authority of Wilson County | 25-APR-2022 | Approved | 17-MAY-2022 | SEC, Inc. | Wilson | Nashville |
| Sewer | 22.0251 | Perkey Heights Subdivision Phase 2 | STEP | CD | Claiborne Utilities District | 07-APR-2022 | Inactive | - | Parsons Engineering & Associates | Claiborne | Knoxville |
| Sewer | 22.0129 | Cedar Hill Baptist Church | STEP | CD | Tennessee Waste Water-Adenus Utility | 22-MAR-2022 | Approved | 28-MAR-2022 | Klober Engineering | Robertson | Nashville |
| Sewer | 22.0150 | The Groves Treatment Facility | STEP | CD | Water Authority of Dickson County | 18-MAR-2022 | Approved | 21-APR-2022 | SEC, Inc. | Williamson | Nashville |
| Sewer | 22.0154 | Thunder Mountain Subdivision | STEP | PPD | Aqua Green Utility Inc. | 14-MAR-2022 | Review Complete | - | - | Sevier | Knoxville |
| Sewer | 22.0149 | The Groves Treatment Facility | STEP | PPD | Water Authority of Dickson County | 14-MAR-2022 | Review Complete | - | SEC, Inc. | Williamson | Nashville |
| Sewer | 22.0147 | Ricketts Subdivision | STEP | CD | - | 14-MAR-2022 | Approved | 02-APR-2022 | - | Wilson | Nashville |
| Sewer | 21.0832 | The Grove Sec 11 Eudailey Treatment Facility Modification | STEP | CD | Tennessee Wastewater Systems, Inc. | 12-MAR-2022 | Inactive | - | SEC Inc | Williamson | Nashville |
| Sewer | 21.0817 | Forrest RV Campground-Bowell-Tims Ford | STEP | CD | Tennessee Wastewater Systems, Inc. | 10-MAR-2022 | Approved | 14-MAR-2022 | SEC Inc | Franklin | Columbia |
| Sewer | 22.0083 | SRF Giltedge Road | STEP | CD | Munford | 28-FEB-2022 | Review Complete | - | King Engineering Consultants, Inc. | Tipton | Memphis |
| Sewer | 22.0067 | Vesta Road | STEP | PPD | Water and Wastewater Authority of Wilson County | 07-FEB-2022 | Review Complete | - | SEC Inc. | Wilson | Nashville |
| Sewer | 21.0687 | Angels Cove Subdivision | STEP | CD | Tennessee Waste Water-Adenus Utility | 03-FEB-2022 | Approved | 22-FEB-2022 | LeMay and Associates | Wilson | Nashville |
| Sewer | 21.0761 | Eagle View Subdivision Phase 3 | STEP | CD | Consolidated Utility District of Rutherford County | 10-DEC-2021 | Approved | 15-DEC-2021 | T-Square Engineering | Rutherford | Nashville |
| Sewer | 21.0816 | Boswell Tim's Ford Treatment Facility Modification | STEP | PPD | Tennessee Wastewater Systems, Inc. | 09-DEC-2021 | Review Complete | - | SEC Inc | Franklin | Columbia |
| Sewer | 21.0697 | Gospel Street Sewer Line Addition | STEP | CD | Tennessee Wastewater Systems, Inc. | 06-DEC-2021 | Approved | 17-DEC-2021 | Klober Engineering Services | Robertson | Nashville |
| Sewer | 21.0846 | Fanning Bend Phase 5 (9 lots) | STEP | CD | Tennessee Wastewater Systems, Inc. | 12-NOV-2021 | Approved | 06-DEC-2021 | St.John Engineering, LLC | Franklin | Columbia |
| Sewer | 21.0738 | The Grove Collection Lines | STEP | CD | Eudailey Treatment Facility - Williamson County | 11-OCT-2021 | Approved | 13-OCT-2021 | SEC, Inc. | Williamson | Nashville |
| Sewer | 21.0536 | Thompson Downs | STEP | CD | Consolidated Utility District of Rutherford County | 26-JUL-2021 | Approved | 28-JUL-2021 | Huddleston-Steele Engineering, Inc. | Rutherford | Nashville |
| Sewer | 21.0403 | Mann Road Treatment Facility- add 4 lots | STEP | CD | Lebanon | 17-MAY-2021 | Approved | 10-JUN-2021 | SEC Inc. | Wilson | Nashville |
| Sewer | 19.0119R | Raven Crest Subdivision Modification | STEP | CD | Logue Road Treatment Facility | 16-APR-2021 | Approved | 05-MAY-2021 | S.E.C., Inc. | Wilson | Nashville |
| Sewer | 21.0254 | Highland Ave Sewer Extension | STEP | CD | Ridgetop | 24-MAR-2021 | Approved | 09-APR-2021 | Fox PE | Robertson | Nashville |
| Sewer | 21.0185 | Autumn Breeze Subdivision Phase 1 | STEP | CD | Water and Wastewater Authority of Wilson County | 04-MAR-2021 | Inactive | - | Lose Design | Wilson | Nashville |
| Sewer | 17.0772R | Lacey Reserve SD - Logue Road Treatment Facility | STEP | CD | Logue Road Treatment Facility | 04-MAR-2021 | Approved | 17-MAR-2021 | S.E.C., Inc. | Wilson | Nashville |