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.~ _ • • <br />Mr. Gilbert F. Rindahl -2- November 21, 1984 <br />5. Please submit information concerning hydrologic calculations for <br />the design flow, you mention (i.e. Rational method). Also submit the <br />diversion ditch design (i.e. Manning's Equation and cross sections). <br />Please submit a complete up to date map of the surface drainage control <br />plan, locating ditches, berms, etc. <br />6. It is stated that a fence is constructed, please locate this fence <br />on a plan map. Will cyanide warning signs be posted? <br />7. Photographs from the CMLRD September 19, 1984 inspection showed <br />that the existing liner and berm may need additional work. Please <br />address this item. <br />8. Please address the final reclamation of cyanide heap leach pile. <br />9. Please consider a water quality monitoring plan of a nearby spring <br />or stream. Include inspection frequency of the leach pad leak <br />detection system. <br />The Division will recommend denial of your technical revision request at the <br />December 13 & 14, Board meeting unless your request a continuance or <br />adequately respond to the above items prior to December 5, 1984. <br />If you have any further questions or comments please contact me. <br />Sincerely, <br />Philip C. Saletta <br />Hydrologist/Geological Engineer <br />PCS/mad <br />cc: Mr. Ed Bischoff (CMLRD) <br />Mr. J. Edward Broiseau Jr. (Mine Development Inc.) <br />Doc. No. 5535 <br />