INSPEC41923 - Laserfiche WebLink

Home Browse Search

(Page 21 MINE ID # OR PROSPECTING ID ar M-76-020 INSPECTION DATE 718196 INSPEC:TOR'S INITIALS WHE This partial inspection was conducted by Wally Erickson from the DMG field office in Durango, 1474 Main Avenue, Room 207, Durango, CO 81301-5182, phone (9701 247-5062, in response to operator's request for an on site meeting. Mr. David King, Mountain Gravel, accompanied the DMG inspector through out the inspection. The Thomas Pit is located :approximately 12 miles north of Durango, on the east side of Highway 550, in portions of the SW 1 /4 of the SE 1 /4 of Section 25, and in portions of the W 112 oT the NE 1 /4 of Section 36, both in T37N, R9W, NMPM, La Plata County. The 112 Regular permit is s~pproved for 29.8 acres affected area. The operation is approved for gravel excavation from an overflow channel of the Animas River and pit area adjacent to the Animas River channel, and material crushing and washing, and concrete production. On 614/96, DMG reviewed the cost of reclamation for the Thomas Pit and determined that the current amount of financial warranty, $9,250.00, was insufficient to ensure completion of the Reclamation Plan. DMG calculated the cost: of reclamation to be 526,295.00. On 6120/96 the operator provided replacement financial warranty in the amount of $26,29!i.00. Mine identification sign was posted at the mine entrance. Perimeter of affected area was clearly delineated. All mining related disturbances appeared to be contained within the approved area. Mine entrance and access roads were well maintained. Material excavation was not occurring during the time of this inspection. The north pit and south dredge basin an:as were flooded. The Animas River was flowing through the south dredge basin. Fish were observed feeding in the south dredge basin. Equipment was not observed at the north pit or south dredge basin areas. Stockpiled material was being processed at the material processing area. Processing water from the wash plant was conveyed to the sediment pond by sediment containment ditch. Spill containment berm surrounded the fuel storage tanks. The operator identified an area on the east side of the Animas River as a potential source of additional material. The operator indicated that Mountain Gravel was contacting the landowners on the east side of the Animas River with .a proposal to excavate gravel from their property. Reclamation of the proposed east side pits would result in a series fish ponds which could also serve as flood detention basins during flood stage of the Animas River. Flood detention basins would reduce the peak flow during flood stage thereby reducing flood damage to downstream developments. The operator showed DMG inspector maps of county planning which indicate that the location of the proposed east side pits have been zoned as industrial/gravel mining areas by the La Plata County Planning Dept. The operator stated that raw material would be transported across the Anima:: River to the existing processing facility located on the west side of the river via elevated conveyor belts. Truck traffic on CR 250 could be limited to initial set up and final reclamation of the east side pits. The operator indicated that although the elevated conveyor belts would be above the river, a portion of the river channel may be requested as affected area to allow installation and maintenance of the conveyor belts. Such request to expand the permit area to the east side of the Animas River is appropriately submitted as a permit Amendment. I & E Contact Address NAME OPERATOR STREET CITY/STATE/ZIP David Kine Mountain Gravel & Construction Co. P.O. Box 788 Dolores. CO 81323 cc: Tom Gillis, DMG X CE, Sue Nall ^ BL ^ FS ^ HW ^ HMWMD ICHI ^ SE ^ WOCD ICHI ^ OTHER