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Oxidation ditches: wastewater treatment plants in Nebraska

21 plants · 12% of the state · 7 MGD reported by 20 plants

Klarifi identifies 21 publicly owned wastewater treatment plants with oxidation ditches in Nebraska, 12% of the 175 plants in the state (7 MGD reported by 20 plants). The largest is City Of Columbus - Wastewater Treatment Facility in Columbus at 3.67 MGD.

Oxidation ditches are ring-shaped activated sludge reactors with long retention times, common at plants between 0.5 and 10 MGD. They are recognisable from the air by their looped channels and rely on surface aerators or brush rotors, which are frequent replacement and energy-efficiency projects.

Oxidation ditches plants nationwide →All plants in Nebraska →Largest plants in Nebraska →

The largest oxidation ditch plants in Nebraska

The 21 largest plants with oxidation ditches in Nebraska by average flow, with permit expiry and three-year violation count.
#FacilityCityAvg flow (MGD)NPDES permitExpiresViolations (3y)
1City Of Columbus - Wastewater Treatment FacilityColumbus3.67NE0035025Jun 20304
2Aurora Burn SiteAurora0.78NE0031810Mar 202814
3Madison Waste Water Treatment FacilityMadison0.43NE0049174Dec 202610
4Wahoo Wastewater Treatment FacilityWahoo0.38NE0021679Jun 202715
5Hickman Wastewater Treatment FacilityHickman0.27NE0046183Dec 203015
6Waterloo Wastewater Treatment FacilityWaterloo0.18NE0043311Sep 202636
7Wilber Waste Water Treatment FacilityWilber0.17NE0045373Jun 20310
8Louisville Wastewater Treatment FacilityLouisville0.15NE0024228Mar 20310
9Eagle Wastewater Treatment FacilityEagle0.14NE0112062Sep 20270
10Hebron Wastewater Treatment FacilityHebron0.12NE0024252Mar 20270
11Albion WWTFAlbion0.12NE0026573Mar 20310
12Randolph Wastewater Treatment FacilityRandolph0.11NE0029149Mar 202848
13Bassett Wastewater Treatment FacilityBassett0.1NE0112666Jun 203124
14Wymore Wastewater Treatment FacilityWymore0.09NE0021130Sep 202612
15Cambridge Wastewater Treatment FacilityCambridge0.07NE0024180Mar 202716
16Elgin Wastewater Treatment FacilityElgin0.06NE0039811Dec 20274
17Crofton Wastewater Treatment FacilityCrofton0.05NE0049131Sep 202729
18Ponca Wastewater TreatmentPonca0.05NE0021687Jun 20282
19Waverly Wastewater Treatment FacilityWaverly0.05NE0024406Dec 20307
20Stuart Wastewater Treatment FacilityStuart0.04NE0023949Sep 20261
21Kimball Wastewater Treatment FacilityKimball—NE0021644Sep 20308

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.

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Other technologies in Nebraska

Lagoon systems (82)Activated sludge and clarifiers (47)Anaerobic digesters and biogas (21)

Oxidation ditches in other states

Texas (261)Ohio (113)Indiana (94)Kentucky (64)Wisconsin (62)Illinois (58)Missouri (57)Georgia (47)Pennsylvania (45)Tennessee (40)Washington (38)West Virginia (37)

Oxidation ditches 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.

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