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CONTRACTORS <br /> ENGINEERS <br /> DEVELOPERS <br /> ' MORRISON-KNUDSEN COMPANY,INC. <br /> EXECUTIVE OFFICE <br /> TWO MOWSCN-KNUDSEN PLAZA ! P O.BOX 7808 / 90tSc'".ICAiiO 03729 / U.S A <br /> TELEX.308439 <br /> PHONE.(21O)34550W <br /> May 15 , 1980 <br /> Mr. Roger S . Funston <br /> Reclamation Specialist <br /> Colorado Mined Land Reclamation <br /> Board <br /> 1313 Sherman Street <br /> Denver, CO 80203 <br /> RE: Mid Continent Resources , Inc. - Mines 1 and 2 <br /> 1097-13 (0437-106) <br /> Dear Mr. Funston: <br /> The recently forwarded M-K report that responded to your <br /> comments on the Sediment Design for Mines 1 and 2 did not include <br /> a Spillway Design detail for the Sediment Pond below Pines 1 and <br /> 2. <br /> The Spillway design for Mine 5 was included in this report <br /> and is to be referred to the dines 1 and 2 Sediment Pond Spillway. <br /> The design criteria for each pond require 18 inch SCP culvert for <br /> emergency spillways. <br /> The attached Plate 2 for Mines 1 and 2 includes a revised <br /> discharge - storage capacity diagram for Pored. 1. <br /> Please call me if you have any questicns . <br /> Sincerer <br /> Ellery H. Wilson, P.E . <br /> Staff Geological Engineer <br /> EHW/gk <br /> Attachment <br /> cc: Doug Bowman - MCR <br /> Jack Norris 3 <br />