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1.0 DE2STPY TlgPB~i On the surface o! the lowest acid western most active bench, 7 sand Done tests were obtained (IB-1 thrwc~r 18-7 -gee Figure 1) . Ott the more easterly and upper Deaf or the active benches, 2 test bori,ng'a waro completed for sanplinq du'd testing at depth (wa-1 errs wP-2 -see Figure 1) . in addition to the 2 test borings, Z ealibratian sites were selected where correlatiorv9 between drive saaplirtq and nand owe testing ~.nuld be irnestigated (CAIrl and C1Sr2 - see Figur.'e i) . At each o! Ruse two calibration locations, the Chlifornia spool strive eanpler was driven ire the surface to a depth oP 12 inches. '!he area imrpdiately adjacent to the drive soapier (within 6 inches) way then suooassivaly excavated and testes itt three 4 i.ndi increments of depth using the card Dona method. Results of the calibration testing may be found in Table 1. Ztte9e results wrre found to be irx:~onclusive. Due to the very erratic nature of the Coar'6e coal r+afuse and the destnactlvs nature of the saapling ptroaeas, it was not possible to establish any meanir+gttil carrelatiore. In some cases the drive aaaplea were !curd to be more dense than the votzpspondiry sand cxvx+s ar~d in other cases the drive saaq~les were less dense than the corre~adirg surd cones. raking the moan of all fasts, tho drive saaples would appear to be slightly more dense than tkw sand o~w results by sa~wthirg just less than 4!. ttavwr ttw 6tarldard deviation of the drive tube oaRxrctions was !curd tc be 17.3 and for the sand Done oonpactio~s 11.61 (nearly triple the observed deviation in the mean percent oa+Qadirn) . 'BUS~erore, in the int~espretaticn of all r.^esainirr~ data, we have elected not tc apply arsy aorrectian factors and have used the density resulb at face value. Table 2 etnmarizes results o! all density testing frc[a tube sar~la.9. Tablo 3 emmnrizes the results of all density testl.ng fmn card cones. Date provided for eac31 ear~le irrludm the wet unit weight, moisture oorstertt, dry unit weight and perxrrt acgx+etion. ~- determining the pez+cent arnpactier, it is nepessazy to utilise the appropriate irofarwxed dermity. For this purpose, each sanple was ~~arte1-ized as either coarse coal oasts or fine coal waste. Ea determining the pez~oertit aepactian, a maxim dry density of 71.5 pcf was utilized for the fine mal weals and 86.1 pcf for the coarse coal waste. Zn reviewing the data provided cn the tables, one viii note many of the values exceeding 1001 (readtinq levols as hied as appnacimataly 1141). Althou~ most of these soapier were i:times very demos, it ehaild also be noted that these taterials era .+~-~i y