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• Ten of the Southfield samples were analyzed for the following additional <br />parameters: <br />Textural Analysis Cadmium (Cd) Manganese (Mn) <br />Saturation (Y.) Chlorine (C1) Molybdenum (Mo) <br />Ammonium (N03-N) Chromium (Cr) Mercury (Hg) <br />Sulfide (S04) Copper (Cu) Nickel (Ni) <br />Arsenic (As) Fluoride (-F) Selenium (Se) <br />Barium (Ba) Iron (Fe) Zinc (Zn) <br />Boron (B) Lead (Pb) <br />These analyses were distributed as follows: <br />3 Jack O'Lantern roof samples <br />3 Jack O'Lantern floor samples <br />2 Red Arrow roof samples <br />2 Red Arrow floor samples <br />Analysis results for roof and floor samples are presented as Table 7, Jack <br />O'Lantern Roof/Floor Analyses, and Table 8, Red Arrow Roof/Floor Analyses. <br />The following sections summarize results for specific analysis parameters <br />and address any potential suitability concerns. In the absence of <br />specific suitability guidelines for the State of Colorado, EFCI has <br />utilized specific requirements presented in: I) Soils and Overburden <br />Guidelines, 1977, Montana Department of State Lands; 2) Guidelines 1-3, <br />1988, Wyoming Department of Environmental quality; and 3) USGS <br />requirements, 30CFR211.10(c)(6)(xii). <br />~. A total of 20 Southfield samples were analyzed with respect to pH. <br />Values of pH ranged from 7.8 to 9.1 with a mean value of 8.6, indicating <br />moderate alkalinity. Two Red Arrow roof samples (SR-46 and SR-50) had the <br />lowest pH (7.8) while one Jack O'Lantern roof sample had a pH value of <br />9.1. <br /> <br />2.04.6-14 <br />