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PERMFILE56372
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PERMFILE56372
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Last modified
8/24/2016 10:58:58 PM
Creation date
11/20/2007 5:03:09 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
Geological Information
Section_Exhibit Name
EXHIBIT 06 Items 1, 2, 3, 4a, 4b
Media Type
D
Archive
No
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The best practical test for detecting and measuring <br />• trace e]cmen~ts (in the ppm range) i.n soil, intcrburden or <br />leachates is obtainable by spar'~c-source mass spectrometry. As <br />is common practice with emission spectroscopy one uses internal <br />standards, in this case rhenium and indium, and by comrarison <br />determines the range of concentrations for different detected <br />elements. A particular mass spectrometry test performed on soil <br />or rock samples is called a "geomascan" by CDM/ACCU-LABS, o£ <br />Wheat Ridge, Colorado. Test data from "geomascans" of A and B <br />horizon soils and six interburdeii samples are furnished in <br />Tables XXIV through xxxl. The six intcrburden samples were chosen <br />on the basis of soluble extracted sodium values cahich ranged <br />from a minimum of 0.05 meq./L to a maximum of 3.80 meq./L in <br />1:1 extractions. The data shot, hioliest concentrations of <br />Na+ for intcrburden sample nos. 25, 24, 23, 22 and 207. Sample <br />no. 204 was run for comparative purposes since no. 204 and <br />no. 207 represent composite samples•of the roof and floor of <br />• X seam. A and B Horizon soils Caere tested to determine the <br />trace element content of the e;cisting topsoil (see sample <br />nos. 38 and 37). Results of the Geomascans are discussed in <br />Section IX. <br />[dater analyses of stream samples taken in the vicinit;~ <br />of Axial, Colorado, appear in Table xIx & xx. The date of <br />sampling was May Z0, 1Q77. <br /> <br />• <br />
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