NPDES Permit for Four Corners Materials' Bayfield Pit and Plant in Colorado
Under National Pollutant Discharge Elimination System permit number CO-0034665, Oldcastle SW Group, Inc., d/b/a Four Corners Materials, is authorized to discharge from its wastewater treatment facility located within the Southern Ute Reservation at latitude 37.1914° N and longitude 107.5865° W, La Plata County, Colorado, to the Los Pinos River.
This permit was issued on July 1, 2019 and modified on April 1, 2020.