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See Diagram 1 for graphical representation. See Table 1 for math. " <br />MATERIAL STRENGTH <br />Fill material gill be derived from the end sting mine bench xhich <br />consist of quartz sandstone xith a calcareous cement and grey to dark <br />grey shale that contains argillaceous and carbonaceous shale partings. <br />Relative tout-hnrs~; 1 . ; <br />F't. lh. ~ ft.2 of fx•acture ; 312.4 <br />Compressive strength lbs. ~ in.2 ~ 9500 ( no partings) <br />Compressive strength lbs. ~ in.2 8400 ( partings) <br />Compaction i 12.5 )S <br />GEOTc^(,'HNICAL KNOYLEDGE OF SITE <br />r. <br />1. This report, <br />A r~e.l <br />January 9, 19b7. <br />2. La Plata Coal Corporation's La Plata N 1 Mined land R <br />3. Required soils sampling, (stipulation), La Plata i/ 1, Ia Flats <br />County, Colorado. <br />All of these documents are in ttie possession of the Colorado 1".fined Lard <br />Reclamation Division. <br />~ ' <br />mothy Meier , Geologist <br />(3) <br />