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'~ ~~ _~ _J _~ _~ l .J ~ l _J 1 7 7 s.o ~rr~c ~rn+o Gn the ~aae o! the lorsst and western most active berms, 7 sand Done teats r,ieze obtained (LS-1 thrvagh 18-7 -see Figure 1). On the more easterly and upper most of the active bermes, 2 test borilx3s warn completed !or sampling and testing at depth (F1P-1 and WP-2 -see Fig~¢e 1) . In addition to the 2 test borings, 2 vlibratian sites were selected where oorzelatiais betweeli drive eanplirg and card crxie testing would ba investigated (CAIrl erld (7Jr2 - sea Figure 1). At each o! these two calibration locations, the c2sliiornia spoon drive soapier was driven Pry the surface to a depth of 12 inches. The area iumediately adjacent to the drive soapier (within 6 inches) w•t9 then successively excavated and tested in three 4 irk irxzenents of depth using the sand Done method. Results of the calibration testing may be !curd in Table 1. These results were found to be inconclusive. Due to the very erratic nature of the coarse coal refuse and the destnK.tiw nature of the sailing process, it was oat possible to establirh any meaningful carralations. 7n sane cases the drive samples were laud to be more dense than the corresponding sand cars and in other cases the drive soapier were less dense than the oorrespading sand canes, Taking tYw swan of all tarts, the drive samples wruld appear to be slightly Mara dartsa than the sand cerw rosults by saoathirg just less than 41. Ey:+wavar tfw at~vdard deviation of trio drive tube oarpactions was found to ba 13.3i arld for the card oohs conpactions 11.61 (nearly triple the observed deviation in tris mean percent aompactianj. Therefore, in the intezpratation o! all remaining data, see have elected not to apply any oorrectian !actors and have used the deutisity remelts at face value. Table 2 summarizes results of all density testing Fran tuba sartples. Tabu 3 exmznarizes the results o! all density testing trrm card cones. Data provided for aadl sample includes the wet unit weight, moisture content, dry unit weight and perxs~t oarpaetion. >}r determining the percent an~sactian, it is necessary to utilize the appropriate ralaranood darmity. Fez this purpose, eact- sample was d~aracterizad as either coarse teal waste or Line coal waste. Ea determining the percent oenpnctian, a ,ti,..;~.,~ dry density of 71.5 pct was utilized for the line coal WasFa and 86.1 pct for the coarse coal waste. 7n reviewing the data provided ar the !abler, ore will note many of the values exceeding lOUt (reaching levels as hic,~ as apptmcimataly 114=). Althour~ most of these samples were irti0ed vpxy dense, it etxzLLd also ba noted that these materials ate extrtenely