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ileptn to water nas ragged from 24.¢d to Ld.t feet. This water level <br />range occurred is 1ycs4. The average avatar level is Lo.y feet. The water <br />level is y to 1U feet below the ground surface where the proposed waste pile <br />is to be located. <br />'the canyon alluvium has an estimated hydraulic conductivity of U.Ud <br />feet per day and transmissivity of U.5'j gallons per feet per day. These <br />hydraulic conductivities and transmissivities are similar to tire Purgatoire <br />alluvium (see gxhibit d of the Golden r:agle permit application). <br />uk;OLUdY <br />The results oi' tite surficial geologic investigations and mapping are <br />snown on r'igure L. A description of eacn mapping unit is summarized in <br />~xnioit 1 and a serias of photos (axnibit Lj are provided to supplement tire <br />map and assist in the discussion of the individual units. The lateral ana <br />vertical extent oY tite Ciruela Canyon alluvium (Qalj is snown on r'igure 1. <br />This alluvium extends from a oedrock exposure just upstream of the proposea <br />• mine reject pile down to a bedrock exposure near pediment Po nu uU4 gnu <br />occurs again to the nortn and east of this pond. This alluvium ranges in <br />tnicxness from U to approximately 1~ feet. inaximum thickness is aarieved in <br />the area of the alluvial monitoring well. trre alluvium averages ~ to tU <br />feet in the area of the proposed mine reject pile (section r'-r'', figure Z). <br />Pre-development mine activities nave generally masKed the original alluvial <br />distribution. These areas designated as artificial fill (af) are snown on <br />Figure 2. <br />The Ciruela Caayon alluvium consists oY clay-ricn, poorly sorted, <br />poorly stratified gravels witn a significant soil traction. Pnotograpns ~, <br />o and 7 illustrate typical Ciruela Canyou alluvial fill material encountered <br />in bacicnoe pits dug by WFC during llecember 1yo~. Diagramatic sections of <br />the oacKnoe pits illustrated on trre pnotos are provided in r'igures j gnu 4. <br />This is in coatrast to the Purgatoire river alluvial leposits (Vpal) aria <br />associated terrace gravels (Qt, Qt~j w,ricn are .cell sortea stratifieu <br />• peooles tnrougn cobole size clasts in a sane matrix (Photo ~). <br />-S- <br />