INSPEC12205 - Laserfiche WebLink

Home Browse Search

(Page 2) MINE ID # OR PROSPECTING ID # M-2000-103 INSPECTION DATE 3/16/04 OBSERVATIONS INSPECTOR'S INITIALS RCO This inspection was performed by the Division as part of its monitoring of Construction Materials 110 permits. The operator was contacted about scheduling the inspection. The operator's representative named on page one was present throughout the inspection. The site was active at the time of the inspection. Subsoil and fill material is being excavated and removed for use on a nearby county bridge project. Most of the material that can be excavated from the site has been removed already. All remaining native material is still in the highwall in the north end of the site, where a loader and trucks were working. A large amount of topsoil imported from another permitted area was also stockpiled on the pit floor, to be processed and/or sold. A small screen was set up on the east edge of the floor. There was some woody debris on the south edge of the floor, which will be removed from the site by pulling it onto the floor by excavator, and hauled away. The wellhead at the north end was marked. The highwall was slightly gentler than 1:1, but was significantly steeper than 2:1. The present condition of the highwall and the reclamation measures needed to reduce the slope to the approved final gradient of 3:1 were discussed. Since the top of most of the highwall was almost at the upper permit boundary on the west, the operator cannot reduce the slope by balanced cut and fill, without the reclamation disturbance extending outside the west boundary. There was a sufficient volume of unmined material on The north end of the site which could be pushed to the south and backfilled against the highwall. Another alternative to reduce the slope is to use the large volume of imported soil presently stockpiled onsite for backfill material. The operator suggested another alternative to allow slope reduction for reclamation: an amendment to add permitted acreage up the slope to the west to provide sufficient area to disturb and material volume for cut and fill from above. The first two alternatives (in the previous paragraph) are possible now, without applying for an amendment and without increasing the bond amount. However, until the slope is reduced to final gradient or an amendent is approved, sufficient material must be preserved onsite and remain available for backfill against the toe of the slope. Other reclamation measures were discussed, such as the seeding and excelsior blankets. 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. I & E Contact Address cc: Harry Posey, DMG ^ CE NAME Allen P Small ^ BL OPERATOR Allen P Small Trucking and Excavation, Inc. ^ FS STREET 13577 CR 213 - La Posta Rd. ^ HW CITY/STATE/ZIP Durango, CO 81301 ^ HMWMD (CH) ^ SE ^ WOCD (CH) ^ OTHER