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two buildings having a total area of 8,704 square feet. Building <br /> heights range from 10 to 78 feet with an average of 41 feet. <br /> This results in a total enclosure of about 352 ,000 cubic feet. <br /> Major components include overhead conveyors, a hammer mill, a 300 <br /> ton bulk storage bin, a bagging facility, drying equipment, and <br /> electric controls. The rock dust plant is reported to have a <br /> maximum design capacity of 20 tons per hour. The main building <br /> was constructed in 1971 and other construction was reported <br /> between 1971 and 1978. <br /> The second facility is a magnetite plant which is attached to the <br /> west end of the rock dust plant in a building with 3, 000 square <br /> feet of floor area. The building height ranges from 10 to 32 <br /> feet with an average of 24 feet. This results in a total <br /> enclosure of about 72,000 cubic feet. The magnetite facility <br /> includes a ball mill, dryers, separators, conveyors, feeder, and <br /> electric controls. Construction dates were reported for 1972, <br /> 1977, and 1978, with the main construction taking place in 1978. <br /> The third facility is the packwall plant constructed in 1982 and <br /> 1983. This facility has an area of 1,759 square feet consisting <br /> of an octagonal building with an attached rectangular building. <br /> The building height ranges from 22 to 70 feet with an average of <br /> about 55 feet. This results in a total enclosure of about 97,000 <br /> cubic feet. The packwall plant includes a ball mill, dryers, a <br /> bulk storage bin, conveyors, feeders, a bagging facility, and <br /> electric controls. <br /> Other facilities include a 10 x 70 foot concrete platform scale <br /> with a 60, 000 ton capacity (Photograph 20) , two metal sheds used <br /> for miscellaneous storage, two metal sheds housing aggregate <br /> sizing chutes (grizzlies) , paved parking and roadways, and a <br /> cleared area capable of storing about 75,000 tons of raw material <br /> (limestone) . <br /> 4.3 NEIGHBORING FACILITIES <br /> East of the site is a lumber mill. Present activities at the <br /> lumber mill involve pre-fabrication of log houses. No activities <br /> at the lumber mill are anticipated to have environmental impact <br /> on the subject property. <br /> West of the site is Mid-Continent Resource's coal loading <br /> facility (Photograph 21) . The facility is currently inactive. <br /> The facility does hold a National Pollutant Discharge Elimination <br /> System (NPDES) permit for storm water runoff. Because the runoff <br /> discharges downstream from the site, the coal loading facility is <br /> not likely to have any environmental impact on the subject <br /> property. <br /> North of the site are the D&RGW Railroad, Road 100, and <br /> 14 <br />