Chevron Mining Inc. (CMI) Questa Mine-Draft NPDES Permit No. NM0022306

AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM

In compliance with the provisions of the Clean Water Act, as amended, (33 U.S.C. 1251 et. seq; the "Act"),

Chevron Mining Inc. – Questa Mine 

P.O. Box 469 

Questa, NM 87556 

is authorized to discharge from a facility located 3.5 miles east of Questa on State Road 38 (NM 38), Taos County, New Mexico. Possible discharges from multiple outfalls are to receiving water named Red River, Segment No. 20.6.4.122 NMAC of the Rio Grande Basin.

  •  Outfall 001: Latitude 36.694936; Longitude -105.488469 
  • Outfall 002: Latitude 36.692044; Longitude -105.621272 
  • Outfall 004: Latitude 36.687156; Longitude -105.535150 
  • Outfall 005: Latitude 36.695200; Longitude -105.489594

in accordance with this cover page and the effluent limitations, monitoring requirements and other conditions set forth in Part I, Part II and Part III.

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Last updated on June 24, 2026