Anaerobic digesters and biogas: wastewater treatment plants in South Carolina
17 plants · 14% of the state · 117 MGD reported by 16 plants
Klarifi identifies 17 publicly owned wastewater treatment plants with anaerobic digesters and biogas in South Carolina, 14% of the 120 plants in the state (117 MGD reported by 16 plants). The largest is Metro Wastewater Treatment Plant in Columbia at 27.08 MGD.
Anaerobic digesters stabilise sludge in sealed heated tanks and produce biogas, visible from the air as digester silos and gas holders. Plants with digesters are typically above 5 MGD and are the buyers of mixing, heating, gas handling, cogeneration and dewatering equipment.
The largest plants with anaerobic digesters in South Carolina
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Metro Wastewater Treatment Plant | Columbia | 27.08 | SC0020940 | May 2023 | 7 |
| 2 | Plum Island WWTP | Charleston | 21.36 | SC0021229 | Jul 2024 | 3 |
| 3 | Wcrsa Mauldin Road Wastewater Treatment Plant | Greenville | 13.25 | SC0041211 | Jun 2008 | 22 |
| 4 | A. Manning Lynch Wastewater Treatment Facility | Spartanburg | 10.35 | SCG570017 | Dec 2030 | 2 |
| 5 | Sumter Pocataligo River WWTP | Sumter | 9.19 | SC0027707 | Mar 2026 | 49 |
| 6 | Pelham WWTP | Greer | 8.57 | SC0033804 | Dec 2023 | 1 |
| 7 | Dorchester Co Lower Dorchester WWTP | Dorchester | 6.84 | SC0038822 | Nov 2027 | 16 |
| 8 | Wcrsa Gilder Creek | Mauldin | 4.95 | SC0040525 | Dec 2023 | 1 |
| 9 | Bjw&sa Port Royal Water Recl Fac | Port Royal | 3.58 | SC0048348 | Jan 2029 | 0 |
| 10 | City Of Georgetown Sewage Treatment Facility | Georgetown | 3.57 | SC0040029 | Mar 2024 | 0 |
Contacts and project signals for every plant on this list
Klarifi adds verified decision-maker contacts, permit limits, discharge monitoring data and the capital projects planned in each city, filterable by technology, size and compliance record.
Other technologies in South Carolina
Anaerobic digesters and biogas in other states
Anaerobic digesters and biogas in South Carolina: questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026.
Wastewater terms: Anaerobic digester · Biosolids · Sludge dewatering · Centrate · Significant industrial user · WWTP · all terms