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<br />MINE ID # OR PROSPECTING ID # M-1980-228 <br />INSPECTION DATE 2/10/06 <br />(Page 2j <br />INSPECTOR'S INITIALS RCO <br />This inspection was performed by the Division as part of its monitoring of Construction Materials 112c permits. The operator <br />was contacted about scheduling the inspection. The operator's representative named on page one was present during the <br />inspection. <br />The concrete batch plant on the site was active at the time of the inspection. No mining has occurred in several years. The <br />level Floor areas of the permit are approved for an industrial post-mining land use, and since those portions of the permit area <br />contain a concrete plant and its associated facilities, the floor areas (including the paved access road) are essentially <br />considered to be reclaimed. <br />The slopes surrounding the pit floor have been graded and seeded, though revegetation is not fully attained in all areas. The <br />slopes are considered to still be in final reclamation. Some areas might need to be reseeded. Several small patches of <br />Canada thistle were observed in the northern end, apparently the same patches observed during prior inspections. The <br />patches have not spread, and the operator stated that noxious weed control continues to be performed at the site. Control <br />must continue into the future, to the extent that the patches are reduced or eliminated, before the slope areas may be released <br />from the permit. If the thistle infestation spreads this may become a problem at a future inspection. There is no problem now. <br />Winter clearing of the working area seems to have included the dumping of bucket loads of snow and gravel beyond the <br />perimeter berm. The permit boundary lies well below the outer toe of the berm, and the dumped material has not affected <br />lands outside the permit area, but the potential is there. The operator must begin keeping all such materials inside the berm, <br />partly for containment of runoff (when this melts) and partly since it continues to damage outer slopes that are being reclaimed. <br />This is not a problem now, but practices should be changed for the future. <br />The concrete botching requires fuel and other hydrocarbons, plus various other liquids. Several types are stored onsite, <br />including on-highway and off-highway diesels, motor oil and hydraulic oil, hydrochloric acid, "d-Limonene;' and some unlabeled <br />containers of fluids. For the most part, the vessels containing these fluids are inadequately stored: lacking lids, lacking <br />impermeable secondary containment, lacking labels, stared in breached containers, and stained soils indicating spillage. Each <br />of the individual conditions listed, and their aggregate conditions constitute a problem at the site, as noted on page one, under <br />the topic s of "hydrologic balance" and "acid or toxic materials" The operator must wrrect the various problem areas identified <br />at the site, by removing and disposing of contaminated soils, or properly neutralizing or decontaminating them; placing all fluids <br />to be stored at the site within impermeable secondary containment of 110% capacity; transferring fluids which are to remain <br />onsite to labeled, sound and sealable vessels; limiting the number of discarded or emptied vessels stored at the site. If <br />necessary for better containment or control, specific areas could be designated for use of limonene or acids, for fueling or <br />maintenance of equipment, etc. This may require placement of concrete pads or liners. The correction date for the clean-up <br />allows the operator time after the ground starts thawing, and is noted on the last page. Please note that the operator is <br />required to perform the correction AND notify this office, by the date shown. <br />No further items were observed during the inspection. Responses to this inspection report should be directed to the Division of <br />Minerals and Geology, 701 Camino del Rio, Room 125, Durango, Colorado 81301, Attn: Bob Oswald; phone no.970-247-5193. <br />I & E Contact Address <br />NAME <br />OPERATOR <br />STREET <br />CITY/STATE/ZIP <br />Marcia Talvitie <br />Four Corners Materials. Inc. <br />PO Box 2707 <br />Durango CO 81302 <br />cc: Harry Posey, DMG <br />^ CE <br />^ BL <br />^ FS <br />^ HW <br />^ HMWMD (CH) <br />^ SE <br />^ WOCD (CH) <br />^ OTHER <br />