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III IIIIIIIIIIIIIIII <br />999 /8~9.6~60 <br />~~~~~~~ <br />'~ ~ '~ INS. JUN 2 8 1983 <br />ENDINEERIND AND ENVIRONMENTAL DIV1810N <br />TsTUNCOLNAVE. MINED LAND RECLAMATION <br />P.o. eox n~oie <br />STEAMBOAT SPRINGS, CO can June 27 ,Cg1~8~ept. of Natural Resource <br />Mr. Dan Mathews <br />Colorado Mined Land <br />423 Centennial Bldg. <br />1313 Sherman Street <br />Denver, CO 80203 <br />Reclamation Division <br />Re: Terror Creek Company Additional Information <br />Dear Dan: <br />To further confirm our contention that the area on which the Terror <br />Creek Loadout Facility is located is not an alluvial valley floor, I <br />made a site visit on June 23, 1983 and conducted the following: <br />• A general site reconissance, <br />• The digging of two backhoe pits to confirm subsurface <br />geology and obtain additional soil samples, and <br />• A discussion with a resident south of the Terror Creek <br />property. <br />Please find enclosed, geological descriptions of the sample pits, and <br />cross sections of the pits. This further on-site investigation has <br />confirmed that the deposits beneath the loadout are not <br />"unconsolidated stream-laid deposits holding streams", but rather <br />colluvial "outwash" from the steep canyon walls of the North Fork of <br />the Gunnison River, immediately north of the loadout site; therefore, <br />based on the definition of AVF in the Regulations of the Colorado <br />Mined Land Reclamation Board for Coal Mining the area cannot be <br />classified as an alluvial valley floor. The findings of this field <br />investigation were consistent with those completed previously. <br />Angular shaped rocks (composed primarily of sandstone) of varying <br />sizes were found just below the surface and throughout the backhoe <br />pits. The frequency of occurance, size and thickness of the rocks <br />increased markedly with the depth of the pit. This finding strongly <br />supports the conclusion that these materials are outwash colluvium <br />from the steep slopes north of the loadout facility. <br />The locations of the two backhoe pits are shown on the enclosed map, <br />Soils Map (Map No. 3). No water table or mottling were encountered in <br />either backhoe pit. A discussion with Mrs. Adam Brownish, a resident <br />directly south of the loadout facility, indicated that the depth of <br />her present water well to be greater than thirty feet. The elevation <br />of the Brownish home is approximately 5,835 feet. The well depth <br />indicates that ground water is not encountered until the elevation <br />