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• • <br />Backfilling the pit with inert material will be an ongoing activity as the mining face <br />moves forward. Backfilling will occur from time to time on a regulaz basis until the <br />approved pit reclamation plan in completed. <br />The approved post-mining land use is industrial development. Operator's <br />reclamation plan says the excavated site will be backfilled with inert materials as defined <br />by Colorado Department of Health (CDH) and the Rules and Regulations of the Colorado <br />Mined Land Reclamation Board (Rules). The CDH definition of inert materials and the <br />Rules say the materials proposed for disposal must be non-water soluble and <br />nonputrescible and that adequate safeguazds must exist to prevent the receipt of non-inert <br />wastes at the backfilled site. Operator intends to use nonwatersolublexnd nonputrescible <br />material stored onsite to backfill the pit. <br />Inert material will be pushed or dumped over the edge of the pit with dozers, <br />loaders or dump trucks. The inert fill material will be placed in small quantities so care <br />may be taken to assure that each lot or load is composed of acceptable inert material. The <br />pit may be backfilled with inert material when in a de-watered condition or when water is <br />present. Voids in the material placed in the pit will be minimized as pit water washes and <br />settles the inert dirt and sand and gravel fill into areas between the broken concrete, rock, <br />and asphalt fill. <br />As proposed in Operator's Reclamation Plan, part of the pit may be left as a pond. <br />Noxious Weeds. During the site inspection, the inspector noted noxious weeds <br />within the permit area. Operator will provide the Office with evidence that the weeds will <br />be treated during the ] 998 season in accordance with recommendations of a local weed <br />control authority. <br />Please contact me if you require additional information. <br />Yours truly, <br />r~ <br />Alan Parkerson, Vice President <br />Parkerson Construction, Inc. <br />mgd/file <br />