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~J <br />Section 779.14(a) Continued. <br />Rule 2.04.6 <br />Guidelines 1-3 of the Division of Land quality, Department of <br />Environmental Quality, State of Myoming; and 3) USGS Requirements of 30 <br />CFR 211.10(c)(6)(xii). <br />Vanadium and chloride were added to the analysis parameters list at the <br />request of the MLRD. No specific analysis has been conducted for the <br />presence of marcasite. Instead, amore accurate and sophisticated method <br />of determining the amount of sulfides and the acid-base potential was <br />conducted. The results of all analyses are discussed in the following <br />sections. <br />The chemical analysis parameters, units of measurement, and laboratory <br />methodologies for overburden are presented in Table 3, Overburden Analysis <br />List. The areal sampling density for overburden evaluation was a minimum <br />• of one (1) hole per 1,300 feet. <br />The vertical sampling interval is based upon sampling practices set forth <br />in the Myoming DEQ Guideline No. 1 as follows: <br />Lithotypes less than 10 feet thick - One (1) composite sample from <br />five foot intervals <br />Lithotypes 10 - 30 feet thick - one (1) composite sample from <br />five (5) foot intervals <br />Lithotypes grater than 30 feet thick - one (1) composite sample <br />approximately every 100 feet <br />from five (5) foot intervals <br />As used here, 'lithotype" is defined as a distinct sedimentary deposit of <br />uniform composition based upon physical and visual characteristics <br />determined in the field. <br />• The laboratory method for determining acid-base potential was as follows; <br />The acid-base potential was determined from values for total sulfur, <br />sulfate, and neutralizing bases present in the sample. Total sulfur was <br />determined by the Leco Furnace Method. Sulfate was determined by <br />turbidimetry on a CaN.(P0.)= extract of the sample. Total sulfur minus <br />779-16 b Revised-Aori1.199n <br />