Nebraska wastewater permits expiring in 2026
23 NPDES permits · 4 MGD combined average flow
23 publicly owned wastewater treatment plants in Nebraska hold NPDES permits that expire during 2026, issued by Nebraska Department of Environment and Energy. The table lists each plant with its permit number, expiry month, average flow, treatment technology and three-year violation count, in order of expiry.
An NPDES permit runs for five years. To keep discharging, a plant must apply for renewal at least 180 days before the expiry date, and the renewed permit usually arrives with tighter effluent limits, new monitoring requirements or a compliance schedule. That is why the year a permit expires is the year a plant starts budgeting for upgrades: nutrient removal, disinfection, capacity or controls.
| Facility | City | Avg flow (MGD) | NPDES permit | Expires | Technology | Violations (3y) |
|---|---|---|---|---|---|---|
| Plattsmouth Burn Site | Plattsmouth | 0.003 | NE0021121 | Mar 2026 | Aerated lagoons | 109 |
| Howells Waste Water Treatment Facility | Howells | — | NE0046205 | Mar 2026 | Uncovered lagoons | 2 |
| Odell Wastewater Treatment Facility | Odell | 0.04 | NE0040975 | Jun 2026 | — | 218 |
| Genoa Wastewater Treatment | Genoa | — | NE0027341 | Jun 2026 | Uncovered lagoons | 152 |
| Wayne Wastewater Treatment | Wayne | 0.58 | NE0033111 | Sep 2026 | Clarifiers | 0 |
| O'Neill Wastewater Treatment | Oneill | 0.31 | NE0049051 | Sep 2026 | Covered lagoons, Uncovered lagoons | 111 |
| Waterloo Wastewater Treatment Facility | Waterloo | 0.18 | NE0043311 | Sep 2026 | Clarifiers, Carrousels / oxidation ditches | 36 |
| Ainsworth Wastewater Treatment Facility | Ainsworth | 0.1 | NE0112267 | Sep 2026 | Clarifiers | 35 |
| Wymore Wastewater Treatment Facility | Wymore | 0.09 | NE0021130 | Sep 2026 | Carrousels / oxidation ditches | 12 |
| Stuart Wastewater Treatment Facility | Stuart | 0.04 | NE0023949 | Sep 2026 | Clarifiers, Carrousels / oxidation ditches | 1 |
| Dwight Waste Water Treatment Facility | Dwight | — | NE0046175 | Sep 2026 | Uncovered lagoons | 6 |
| Winside Wastewater Treatment Facility | Winside | — | NE0043320 | Sep 2026 | Uncovered lagoons | 0 |
| Tecumseh Waste Water Treatment Facility | Tecumseh | 1.06 | NE0030911 | Dec 2026 | Clarifiers, Aerated lagoons, Covered lagoons, Uncovered lagoons | 12 |
| Madison Waste Water Treatment Facility | Madison | 0.43 | NE0049174 | Dec 2026 | Clarifiers, Uncovered lagoons, Carrousels / oxidation ditches | 10 |
| Crawford Wastewater Treatment Facility | Crawford | 0.24 | NE0039799 | Dec 2026 | — | 4 |
| Oakland WWTF | Oakland | 0.19 | NE0024023 | Dec 2026 | — | 17 |
| Humboldt Wastewater Treatment Facility | Humboldt | 0.15 | NE0031844 | Dec 2026 | Clarifiers | 178 |
| Wisner Wastewater Treatment Facility | Wisner | 0.13 | NE0023957 | Dec 2026 | — | 1 |
| Scribner Wastewater Treatment | Scribner | 0.11 | NE0023787 | Dec 2026 | — | 4 |
| Stanton Wastewater Treatment | Stanton | 0.07 | NE0029343 | Dec 2026 | — | 12 |
| Bruning Wastewater Treatment Facility | Bruning | — | NE0045071 | Dec 2026 | Uncovered lagoons | 0 |
| Jansen Wastewater Treatment | Jansen | — | NE0045233 | Dec 2026 | Uncovered lagoons | 28 |
| Wauneta Wastewater Treatment Facility | Wauneta | — | NE0023841 | Dec 2026 | Uncovered lagoons | 21 |
Nebraska permit renewals in 2026: 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.