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TABLE 1 (Cont.) <br />Suitability Information for Overburden Samples Collected <br />from the 1980 Phase I Drilling Within the Yoast Study Area <br />Routt County, Colorado <br />Core Hole I.D. 2309E 2314E 2315E 2316E 2317E 2318E <br />Parameter Units No of Sam ples with Unsuitable Concentration and Most Unsuitable Parameter Value <br />Boron, ppm 1 10.7 0 0.9 2 7.9 1 8.7 1 7.0 0 0.9 <br />Sand, 4 0 65 0 69 0 87 0 74 0 63 0 78 <br />Silt, ~ 0 55 0 50 0 63 0 54 0 52 0 62 <br />Clav, ~ 2 63 1 58 8 77 2 77 5 80 1 58 <br />10verburden thickness in feet. Defined to include all material overlying Wadge coal seam. <br />2Uni is are tons calcium carbona te required per 1,000 tons of spoil. <br /> <br />