On May 19, 2015 a CHS Inc. tank truck and pup trailer rolled over on WA State Highway 21 at mile marker 136.5, approximately 35 miles south of Republic, Washington. This is within the Colville Confederated Tribes Reservation. A reported 2,800 gallons of gasoline and 60 gallons of diesel fuel were reportedly spilled into the uphill ditch of the highway, which is approximately 50 feet from the Sanpoil River. The Sanpoil River empties into Lake Roosevelt and the Colombia River approximately 30 miles downstream from the spill. EPA OSC and START contractor, Colville Tribes, CHS Inc. (the trucking company) and their cleanup contractors are responding. As of May 21, no gasoline or diesel had been observed in the Sanpoil River. Containment and absorbent boom are deployed.
