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September 2004 Seneca Caal Company * Yoart Mrne Sedrmtntatran Aond 013 Ar-Bur!! Stadilily Amalyrrr ~ 2 <br />• <br />u <br /> <br />solid data collected for Pond 010 compares well to the soil available in the Pond 013 area. The <br />following table summazizes the index properties of the ma[erials tested for sttengch parameters. <br />TABLE 2 <br />SEDIMENTATION POND 010 LABORATORY VERIFIED DATA <br />Material Type Atterberg LimFts <br />ILL - PI) Particle Size Data <br />(% assin No. 200) USCS Classification <br />Sandy Clay 38 - 22 86 CL <br />Slightly Sand Clay 52 - 31 96 CH <br />For Pond 013, it was assumed that the embankment material would be constmcted out of a sandy clay <br />material similar to the upper suatum of the Binco Series described in Table 1. The subgrade was <br />evaluated as a slightly silty and sandy clay, common to deeper stratums of the Binco and Aarberg <br />Series. The following soil properties and strength data were used in the analysis: <br />TABLE 3 - <br />MATERIAL DENSITY AND STRENGTH PROPERTIES <br />Material Type Wet Density <br />( cfl Cohesion <br />I sf) Internal friction <br />An le Ide 1 <br />Sand Cta 120 485 14.2 <br />Sli htl Sand Cla 120 760 3.8 <br />MIY/!f * 1475 Pine Grove ]Load, Ste. 109 * Steamboat Spnngg Colorado 80487 * (970J 879-6260 <br />~Uee/+\hAIIA II ~IMdOi)Nbvb.1/nSpijM <br />-/N/WM <br />