Laserfiche WebLink
FROM GREG-LEWICKI <br />FqX N0. 3033465196 Apr. 02 2003 02:01PM P1 <br />Greg Lewicki And Associates <br />115d! 'F></ar:•ic:gtnn Conrt 1'hc^e (3!?3j 346-5196 Fax: (303)-346-5934 <br />Parker, CO USA 80138 lE-Mail: lewicki7~~attbi.com <br />April 2, 2003 <br />Erica Crosby <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street <br />Denver CO 80202 <br />Dear Erica: <br />RE: Adequac,y, Lre~~sponse for Fetcher/Vale Pit Elam Construction(,iNl-uol-I Iq~ <br />Tc(rw~ I ~IU.U;~I~ <br />After discussion with you, Tim Dillie and Steve Kaspaz of Elam, we feel that the best <br />thing to do regazding the slope stability issue is to bond for potential loss of topsoil <br />from a failure of a portion of the slope at the site, although we firmly believe that this <br />is extremely unlikely. <br />The calculations of additional bond are given below: <br />Assumptions: 30 feet maximum width of topsoil pile at bottom, 2H:1 V slope, 7.5 feet <br />high, maximum length of slope failure is 140 feet. Also assume that all topsoil in the <br />140 feet is mixed and lost for reclamation. <br />Volume of topsoil needed to import to replace the mixed soil = 7.5' x 15' x 140' = <br />15750 cubic feet or 583 cy. Assuming a cost of $l0 per cy for import soil, the <br />increased bond is $5830 t add on overhead (18.5%) _ $6908. <br />Sincerely, <br />~~ ~~~_. <br />Greg Lewicki, 1'. E. <br />Greg Lewicki and Associates <br />cc: Steve Kaspar Elam Construction, Inc. <br />