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(Page 2) MINE ID # OR PROSPECTING ID # M-1986-061 INSPECTION DATE 7/9/04 INSPECTOR'S INITIALS RCO OBSERVATIONS This inspection was performed by the Division as part of its monitoring of Construction Materials 112c permits, and as a pre- operation inspection of the area to be added under Amendment AM-01. The operator was contacted about the inspection and a time was arranged to meet at the site. The operator's representative named on page one was present during the inspection. The site was active during the inspection The required permit ID sign was observed posted near the entrance to the site, though the current operator should replace the sign since the former operator's name is still there. The permit boundary markers are in place. The excavation in the northern section (Phase 1) is nearly complete, with minimal grading and reclamation to pertorm. That stage will will not occur, however, until the additional mining in the adjacent amendment area is completed, and until the staging area is no longer in this phase. Currently there is screening, crushing, stockpiling and hot mix hatching occurring there. A small pile of waste asphalt is also in this area, though the operator manages it by grinding it and reusing it. The central section (Phase 2) is being actively mined, with the highwall being advanced to the west. The gas well is well marked and is being avoided. Drainage is bermed but is also routed to the natural drainageway between Phases 1 and 2. The operator must ensure that this is in keeping with the approved SWMP, and that no uncontrolled or offsite sediment transport occurs. No mining-related disturbance has occurred in the southern section (Phase 3) yet. The areas to be added under the current amendment are a large area adjacent to the north phase, a large area to the south of the permit area, and a thin strip along the eastern side of the phases. Some of the current areas of the permit will be mined deeper. Amendment areas are still mainly unirrigated range, with rolling topography, and dryland vegetation typical of the area. In several areas the soil profile is visible, showing that there is about 12 inches of dark clayey soil, underlain bya couple feet of caliche, with sand and gravel below. In some places the operator reports that five feet or more of overburden is above the sand and gravel. This overburden, along with the reject material and fines, will be used for accomplishing the deep fills needed to attain the post-mining surfaces planned for the site (mainly the filled gullies desired by the landowner). The bond is currently set for full reclamation of the entire 48-acres of affected area. The amendment seeks to revise the bonded number of acres by carrying out concurrent reclamation. The amount will be recalculated after amendment adequacy issues are addressed. ' In the Phase 1 pit area, the disturbed slopes and pit floor are infested with thistle and knaoweed. far more than what was observed at the last inspection. Manv of the areas do not exhibit evidence of several seasons of weed orowth, which points I & E Contact Address NAME OPERATOR STREET CITY/STATE/ZIP Marcia Talvitie Four Corners Materials PO Box 2707 Durango, CO 81302 cc: Harry Posey, DMG ^ CE ^ BL ^ FS ^ HW ^ HMWMD (CH) ^ SE ^ WOCD (CH) ^ OTHER cc: Rod Cook, La Plata County Weed Control Officer, 2500 Main Ave., Durango, CO 81301 No further items were observed during the inspection. Responses to this inspection report should be directed to the Division of Minerals and Geology, 701 Camino del Rio, Room 125, Durango, Colorado 81301, Attn: Bob Oswald; phone no.970-247-5193.