Oxidation ditches: wastewater treatment plants in New Mexico
5 plants · 16% of the state · 13 MGD reported by 4 plants
Klarifi identifies 5 publicly owned wastewater treatment plants with oxidation ditches in New Mexico, 16% of the 31 plants in the state (13 MGD reported by 4 plants). The largest is City Of Farmington in Farmington at 6.33 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.
The largest oxidation ditch plants in New Mexico
| # | Facility | City | Avg flow (MGD) | NPDES permit | Expires | Violations (3y) |
|---|---|---|---|---|---|---|
| 1 | City Of Farmington | Farmington | 6.33 | NM0020583 | Nov 2026 | 47 |
| 2 | Santa Fe WWTP | Santa Fe | 5.24 | NM0022292 | Aug 2026 | 223 |
| 3 | Silver City (city Of) - Wastewater Treatment Plant | Silver City | 0.94 | NM0020109 | Aug 2018 | 18 |
| 4 | City Of Santa Rosa Wastewater | Santa Rosa | 0.3 | NM0024988 | Apr 2027 | 411 |
| 5 | City Of Artesia | Artesia | — | NM0022268 | Aug 2030 | 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 New Mexico
Oxidation ditches in other states
Oxidation ditches in New Mexico: 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: Oxidation ditch · Activated sludge · Biological nutrient removal · Ozonation · Anaerobic digester · all terms