21 plants · 12% of the state · 49 MGD reported by 20 plants
Klarifi identifies 21 publicly owned wastewater treatment plants with anaerobic digesters and biogas in Nebraska, 12% of the 175 plants in the state (49 MGD reported by 20 plants). The largest is Missouri River Wastewater Treatment Plant in Omaha at 23.36 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.
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | Missouri River Wastewater Treatment Plant | Omaha | 23.36 | NEL036358 | Dec 2030 | 0 |
| 2 | Fremont Wastewater Treatment | Fremont | 5.68 | NE0031381 | Sep 2029 | 0 |
| 3 | Lincoln Northeast Wastewater Treatment Facility | Lincoln | 4.12 | NE0112488 | Dec 2030 | 0 |
| 4 | City Of Columbus - Wastewater Treatment Facility | Columbus | 3.67 | NE0035025 | Jun 2030 | 4 |
| 5 | Hastings Pollution Control Ctr | Hastings | 3.41 | NEL038946 | Dec 2030 | 0 |
| 6 | City Of Norfolk Waste Facility | Norfolk | 3.31 | NEL033421 | Dec 2030 | 4 |
| 7 | Blair Wastewater Treatment | Blair | 1.2 | NE0021482 | Dec 2029 | 0 |
| 8 | Nebraska City WWTP | Nebraska City | 0.9 | NE0021245 | Dec 2028 | 4 |
| 9 | Seward Waste & Potable Water | Seward | 0.78 | NE0023876 | Jun 2029 | 2 |
| 10 | Ogallala Burn Site No 1 | Ogallala | 0.58 | NE0040045 | Sep 2029 | 122 |
| 11 | Sidney Wastewater Treatment Facility | Sidney | 0.55 | NE0023884 | Mar 2028 | 4 |
| 12 | Holdrege Wastewater Treatment | Holdrege | 0.48 | NE0021202 | Mar 2030 | 72 |
| 13 | Mccook Wastewater Treatment Facility | Mccook | 0.41 | NE0021504 | Jun 2027 | 3 |
| 14 | Louisville Wastewater Treatment Facility | Louisville | 0.15 | NE0024228 | Mar 2031 | 0 |
| 15 | Hartington WWTP | Hartington | 0.13 | NE0049115 | Mar 2029 | 4 |
| 16 | Hebron Wastewater Treatment Facility | Hebron | 0.12 | NE0024252 | Mar 2027 | 0 |
| 17 | Albion WWTF | Albion | 0.12 | NE0026573 | Mar 2031 | 0 |
| 18 | Wausa Wastewater Treatment Facility | Wausa | 0.06 | NE0039861 | Mar 2029 | 24 |
| 19 | Ponca Wastewater Treatment | Ponca | 0.05 | NE0021687 | Jun 2028 | 2 |
| 20 | Newcastle Wastewater Treatment Facility | Newcastle | 0.03 | NE0049077 | Mar 2028 | 14 |
| 21 | Wakefield Wastewater Treatment | Wakefield | — | NE0049018 | Sep 2029 | 216 |
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.
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 September 11, 2026.