On February 2, 2026, EPA issued an Administrative Order for Compliance to Belen Regional Airport. The AO was issued for violations of the Clean Water Act (CWA) (33 U.S.C. ? 1251 et seq.). The City of Belen owns or operates an industrial facility and violated its National Pollutant Discharge Elimination System (NPDES) Multi-Sector General Permit by failing to submit Discharge Monitoring Reports (DMRs) from January 1, 2025, to September 30, 2025.