Laserfiche WebLink
;. ~ Attachment 1 - <br />-6- <br />TABLE 3. OVERBURDEN - ROOF AND FLOOP, <br />September 16, 1982 <br />A. Suggested Chemical Parameters <br />_~ pH Sulfur <br />ri Electrical Conductivitq °~ pyritic sulfur <br />' sulfate sulfur <br />Total Combustible Solids °; organic sulfur <br />Lithologic Classification total sulfur <br />Textural Analysis ~ Arsenic (AS) <br />r ) <br />'~ <br /> 9oron (B) <br />~ <br />°~ silt <br />i <br />°s clay cadmium (Cd) <br /> <br />Saturation Percentage Covoer (Cu) <br />.Sodium Adsorption Ratio (SA R) Iron (Fe) <br />+2 <br />Calcium (Ca ) Lead (Pb) <br />+2 <br />, <br />i <br />!fa gnesium (14g ) !fan aanese (Sfn) <br />~ Nitrate-Nitrite !fe rcury (:fig) <br />+ <br />/Sodium (fla ) 1 <br />Molybdenum (Plo) <br /> <br />1 ~ <br />Selenium (Se) <br /> Zinc (Zn) <br />B. Suggested Sampling Procedures <br />1. Overburden - Surface lfines " <br />~ ~ a. Drill hole spacing should be approximately ore hole <br />' per square mile. A nunimum of three drill holes should <br />I 6e sampled (this may require a closer drill hole spacing <br />for smaller mines). <br />b. Grill hole de nth should be down to and includir.q the <br />strata irvnediately underlying the coal seam. Dri11 <br />holes should be located to ma.rinize overburden thicY.ness. <br />c. Generallu, each individual stra him should be sampled. For <br />thinly bedded strata (interbedded strata with individual beds <br />less than 4 feet thicY.), samoles may be composited in 4-foot <br />intervals. All carbonaceous units (coals and carbonaceous <br />shales) in excess of one foot should be sampled. Composite <br />sampling maq Fie done when an individual stratum exhibits uniforn <br />color, lithnlnml and mine r.iloyy. <br />2. Roof, Floor, Interburden and Coal - C'ndgrgrovnd "fines <br />f a. Dci11 hole spacing should '~e anoroxinately nna Tole ver s!+care <br />li mile. A minimum of three grill roles should be sa,^~nled (this <br />may require a closer r r'11 :±o le spacing for smaller mines). <br />b. For each coal seam to'•be mined, the folloroina samples should <br />be analyzed; a composite sample from the first ten fee[ o: <br />strata overluinq the coal seam, a composite sample from the <br />first five feet of the stratum underlying the coal seam, a <br />sample of the coal seam, and samoles of interburden, partings, <br />splits, etc. <br />