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. .M1` ► COMPUTATION OF MAXIMUM COLLECTED FLOW <br /> Parameter Unit PC PC + T Comment/Basis <br /> Expected infiltration flow to ECOSA in/yr 6 6 ABC, 2015 <br /> - °•' „ ,,,{� t ,, Total area covered by channels acres 25 66 Shaded areas on plan opposite <br /> • t «ry. -; <br /> Flow rate cfs 0.017 0.046 Based on all flow in one trench <br /> COMPUTATION OF CHANNEL FLOW CAPACITY <br /> '4 <br /> �. ft Parameter Unit Value Comment/Basis <br /> Maximum area of channel (A) feet 113 <br /> Gradient of channel (1) % 1% Shaded area on plan opposite <br /> 'p►1 Estimated 10% diameter of rock mm 8.0 CC&V test, Plate 32 <br /> Hydraulic conductivity of channel fill (K) cm/s 96.0 Hazen Formula, Plate 32 <br /> �' • • A - Flow capacity per channel cfs 0.25 Darcy's Law: Q = K I A <br /> REFERENCE: <br /> ABC, 2015. Cresson Project Amendment 11 Hydrogeochemistry Evaluation. Report prepared for Cripple Creek & <br /> Victor Gold Mining Company by Adrian Brown Consultants, December 15, 2015. <br /> tf <br /> t4 t I l <br /> 7.5400 7.5000 7s000 is.omo 7s000 7s000 7s000 <br /> t7.3 <br /> ?u� IOCrOId <br /> Dha ze.teacc Di-ci � Asha <br /> ntiti (C'olorado) <br /> 3 atn ]Cm-Line <br /> 'cte St Lxat:m r PeCreel S Victor Cold Mining Company �••s. <br /> _ Y:• - <br /> - <br /> _t.•. <br /> `•.- L..n <br /> C�inpkt.d •nian Q dR..t,��o.".= Ecosa Ditch Proposal <br /> 1023C m:a> cam.m:�z axz •� 3.11/?013 <br /> AS CONSTRUCTED PLAN OF ECOSA UNDERDRAINS CROSS SECTION THROUGH UNDER-DRAINAGE CHANNEL <br /> Scale: No scale CC&V Amendment 11 Hydrogeochemistry <br /> Drawn: A.Brown PLATE 33 Rev.2 <br /> Adrian Brown Date: 2016-11-09 INFILTRATION FLOW TO ECOSA UNDERDRAINS <br />