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• SECTION 8 -REGRADED OVERBURDEN SAMPLING <br />RULE REQUIREMENT <br />Sampling of regraded overburden is performed at a density of one sample per five acres <br />of regraded area (PAP Exhibit 6, Item #4, Colowyo letter of January 4, 1983). Colowyo <br />recognizes the potential for elevated SAR values (PAP page 2.04.6-9). Threshold SAR <br />values for special handling are identified as "suspect levels". The SAR "suspect level" at <br />Colowyo is 15 (PAP, Exhibit 6, Item #4, Colowyo letter of January 4, 1983). Remedial <br />measures consist of additional samples to determine the extent of the suspect material <br />(PAP, Exhibit 6, Item #4, Colowyo letter of January 4, 1983). If the aerial extent is <br />greater than one acre, it is to be covered with at least five feet of acceptable material. See <br />Exhibit 8A for permit commitment documentation. <br />GENERAL DISCUSSION <br />No overburden sampling occurred in 2006. <br />• <br />i. <br />C.F. 17.14 2006 <br />