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E viro e t I ~uu~iimiuii <br />n ' nm n , n <br />LARRY E. O'BRIAN <br />FOUNDER <br />April 5, 2001 <br />Ms. Erica Crosby <br />7985 VANCE DRIVE, SUITE 205A <br />ARVADA,COLORAD080003 <br />303-423-7297 <br />FAX 303-423-7599 <br />Division of Minerals and Geology RECEIVED <br />1313 Sherman St., #215 <br />Denver, CO 80215 <br />APR 0 5 2001 <br />Dear Erica; pivision of Minerals and Geology <br />RE: Platte Sand & Gravel LLC <br />S&H Mine, Permit # M-2000-158 <br />Platte Sand & Gravel LLC (PS&G) has asked me to respond to <br />the additional items Mr. Schreiner and Mr. Sorenson have asked <br />answers for. I will respond in the order presented for each part <br />of their memos and the additional information we discussed today. <br />Memo from Tom Schreiner <br />9. Today (4/5/01) my discussion with Mr. Schreiner centered on <br />what type of information he needed and the reasoning behind <br />the request. PS&G is making the following commitment to <br />give their engineers time to do a thorough analysis and <br />develop a plan that would be acceptable to the Division. <br />PS&G will commit to not minin-g_in the flood_plain"until a <br />~fTaodglaid analysis and mitigation _plan..is. developed--and <br />su mitted-to the Division for review and approval~._ This <br />analysis_ ttiay be complete `prior to-the Mined. Land_Reclamation <br />Board hearing on Apri_1 25-26. I will submit this as soon as <br />it is available. ~~ <br />Memo from Alaa Sorenson <br />Response 25: <br />PS&G will commit to not constructing lateral berms or leave <br />Division as approved a design for protection_on the lateral <br />berms. Tlie operator_will file a lateral berm protection <br />- plan~wit'li--the Division prior to constru"atiri.g, a beim=within <br />400 feet of the river if it becomes necessary. <br />Response 26: <br />PS&G_will._commit to not minin-g._within. 40.0 _feet_of-the_top of <br />_the riverbank until-an armoring and bank stabilization <br />design .has- been submitted to .the Division-and approved. The <br /> <br /> <br />