405 N. Paseo De Onape, Espanola, NM 87532 · Rio Arriba County · Publicly Owned Treatment Works
Espanola, City Of is a publicly owned wastewater treatment plant in Espanola, Rio Arriba County, New Mexico treating an average of 0.83 million gallons per day against a permitted design capacity of 1.01 MGD, serving about 10,526 residents. It discharges under NPDES permit NM0029351 (effective), which expires in February 2028, with 13 recorded violations in the last three years. EPA has recorded 7 formal enforcement actions naming the plant, the latest in October 2025.
One treatment structure or unit process identified at Espanola, City Of.
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See the full treatment train at Espanola, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Espanola, City Of in EPA's ICIS system.
Latest case · Oct 2025
City of Espanola WWTP
Administrative order · CWA, NPDES Permit Violations · Superseded by Another Enforcement Action
EPA's description of the case:
“Multiple violations of permit found during inspection as well as effluent limit violations”
Source: EPA ECHO, civil enforcement case 06-2024-1763.
Full case history with a free Klarifi account
Every action against Espanola, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Espanola, City Of.
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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; facility record last updated November 14, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms