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In August 2001 Seneca drilled a monhoring well (WWCU-24) approximately 1,600 teat down dip from <br />the proposed Sage Creek/yyolf Creek mining area and collected overburden chip samples Yo further <br />assess the overburden characteristics in the Sage Creek/V11olf Creek mining area. The'sample intervals <br />collected represent the Sage Creek overburden, the Wolf Creek overburden, and the Wolt Creek <br />underburden. <br />Ahhough Sege Creek/Wolf Creek overburden samples were collected from only one locale near the <br />proposed Sage Creek/Wolf Creek mining area and do not statistically represent the actual overburden <br />characteristics of the entire proposed mining area, the analysis results were used in conjunction with <br />the. overburden assessment at the Yoast Mine to estimate reclamation suitabifny of the Sage <br />Creek/V11olf Creek overburden matedal. <br />The Voast Mine Permit, Tab 21, Minesoil Reconstruction, indicated that..... <br />Excessive ABP /eve/s were identiTed in T8.9 percent of the Wo/f Creek overburden at Site 2313E, <br />mostly in the 20 fo 35-loot zone above the coal seam. Typical overburden handling wi/! effective/y <br />bury much of this streta in the centre/ portion of the apoi/ proTi/e. However, based upon previous <br />information from the adjacent Seneca // Mine, ecid mine apoi/ may occasionally be identified et the <br />surlace of Tina/ graded spoil. These areas, ideniiSed by the regraded spot/ monitodng program, wi// be <br />buried with a minimum of three feet o/ suirab/e apoi/ pdor to sot/rep/acement. <br />!t has been assumed that similar ABP characteristics are also present at the II-W Sege Creek/Wolf Creek <br />mining area, although the recent overburden analyses from monitoring well WWCU-24 do not indicate <br />this potential. Table 6-5.i, Sage Creek/Woif Creek Suitabilty Assessment, presents the average <br />suitability characteristics from borehole WWCU-24 recently drilled as adown-gradient monhodng well <br />for the proposed mining area, while Table 6-5.2, Unsuitable Intervals, shows specific depth intervals <br />that indicate unsuitable zones. It should be noted that spoil handling practices will dilute these <br />concentrations over a much larger interval and resuh in charactedstics similar to Table 5.5.1. SCC <br />proposes to employ the same overburden handling practices as approved for the Yoast Wolf Creek <br />mining area. <br />6-5-8 Revised 01/02 <br />