Wastewater Treatment Plants in Nebraska
175 facilities · 85 MGD combined flow
Klarifi tracks 175 publicly owned wastewater treatment plants in Nebraska with a combined average flow of 85 MGD, serving about 701,599 residents. 14 plants treat more than 1 MGD and 2 more than 10 MGD; 82 use lagoon systems and 21 have digesters or biogas infrastructure. The largest is Missouri River Wastewater Treatment Plant in Omaha at 23.36 MGD. 23 NPDES permits expire this year and 41 next year.
Every plant below links to a profile with average and design flow, treatment technology, the NPDES permit and its expiry, a three-year compliance snapshot and the capital projects planned in its city.
175 plant locations in Nebraska; dot size follows average flow.
NPDES permits and renewals in Nebraska
Every plant discharges under an NPDES permit that is renewed every five years, usually with tighter limits. The renewal year is the year a plant budgets for upgrades.
Largest wastewater treatment plants in Nebraska
| Facility | City | Avg flow (MGD) | Design (MGD) | NPDES permit | Expires | Technology | Violations (3y) |
|---|---|---|---|---|---|---|---|
| Missouri River Wastewater Treatment Plant | Omaha | 23.36 | — | NEL036358 | Dec 2030 | Clarifiers, Biogas balloons | 0 |
| Grand Island Wastewater Trtmnt | Grand Island | 10.67 | 25 | NE0043702 | Dec 2024 | Clarifiers, Aerated lagoons | 11 |
| Fremont Wastewater Treatment | Fremont | 5.68 | 10.71 | NE0031381 | Sep 2029 | Clarifiers, Covered lagoons, Uncovered lagoons, Biogas silos, Biogas balloons | 0 |
| Lincoln Northeast Wastewater Treatment Facility | Lincoln | 4.12 | 10 | NE0112488 | Dec 2030 | Clarifiers, Biogas silos, Biogas balloons | 0 |
| Kearney Wastewater Treatment | Kearney | 4.06 | 4.8 | NE0052647 | Jun 2028 | Clarifiers | 4 |
| City Of Columbus - Wastewater Treatment Facility | Columbus | 3.67 | 5.2 | NE0035025 | Jun 2030 | Clarifiers, Carrousels / oxidation ditches, Biogas balloons | 4 |
| Hastings Pollution Control Ctr | Hastings | 3.41 | — | NEL038946 | Dec 2030 | Clarifiers, Covered lagoons, Biogas silos | 0 |
| City Of Norfolk Waste Facility | Norfolk | 3.31 | — | NEL033421 | Dec 2030 | Clarifiers, Biogas silos, Biogas balloons | 4 |
| City Of South Sioux City | South Sioux City | 2.27 | 2.02 | NE0139904 | Mar 2028 | Covered lagoons | 86 |
| Lexington Wastewater Treatment | Lexington | 1.37 | 2.05 | NE0042668 | Jun 2031 | Cooling towers | 17 |
| Blair Wastewater Treatment | Blair | 1.2 | 2 | NE0021482 | Dec 2029 | Clarifiers, Biogas balloons | 0 |
| York Wastewater Treatment | York | 1.12 | 1.6 | NE0040932 | Mar 2029 | — | 2 |
| Beatrice Wastewater Treatment | Beatrice | 1.06 | 5 | NE0020915 | Jun 2028 | Clarifiers | 9 |
| Tecumseh Waste Water Treatment Facility | Tecumseh | 1.06 | 1.3 | NE0030911 | Dec 2026 | Clarifiers, Aerated lagoons, Covered lagoons, Uncovered lagoons | 12 |
| David City Wastewater Treatment Facility | David City | 0.92 | 1.2 | NE0021199 | Jun 2031 | Uncovered lagoons | 30 |
| Nebraska City WWTP | Nebraska City | 0.9 | 2.11 | NE0021245 | Dec 2028 | Clarifiers, Biogas balloons | 4 |
| Falls City Wastewater Treatment Facility | Falls City | 0.86 | 1.4 | NE0021148 | Mar 2031 | Aerated lagoons | 7 |
| Aurora Burn Site | Aurora | 0.78 | 1.8 | NE0031810 | Mar 2028 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 14 |
| Seward Waste & Potable Water | Seward | 0.78 | 1.01 | NE0023876 | Jun 2029 | Clarifiers, Biogas silos, Biogas balloons | 2 |
| Crete WWTF | Crete | 0.71 | 2.93 | NE0034304 | Mar 2029 | Clarifiers | 2 |
| Ogallala Burn Site No 1 | Ogallala | 0.58 | 0.88 | NE0040045 | Sep 2029 | Clarifiers, Uncovered lagoons, Biogas silos, Biogas balloons | 122 |
| Wayne Wastewater Treatment | Wayne | 0.58 | 0.85 | NE0033111 | Sep 2026 | Clarifiers | 0 |
| Sidney Wastewater Treatment Facility | Sidney | 0.55 | 2.53 | NE0023884 | Mar 2028 | Clarifiers, Aerated lagoons, Biogas balloons | 4 |
| Chadron Wastewater Treatment Facility | Chadron | 0.54 | 1.2 | NE0029190 | Dec 2029 | Uncovered lagoons | 79 |
| Cozad WWTF | Cozad | 0.48 | 0.83 | NE0112828 | Mar 2030 | Clarifiers | 13 |
Nebraska plants by treatment technology
All 175 plants in Nebraska
Wastewater treatment in Nebraska: 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 September 11, 2026.