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• III I II I II I II IIII III ~ N <br />. EN <br />GINEERING & <br /> ENVIRONMENTAL <br /> SOLUTIONS <br /> ~iECEIVED <br /> Haley & Aldrich, Inc. <br /> (`f+8 <br />~`~QV i' 3 1"~ 110 16th Street <br /> Suite 900 <br /> <br />Division of Minerals & Geology Denver, CO 80202-5202 <br />Tel: 303.534.1100 <br /> Fax: 303.534.1777 <br />20 November 1998 Email: DENBHaIeyAldrich.com <br />File No. 20200-007 <br /> 2, <br />Mr. Gregg R. Squire, Environment al Protection Specialist ~\~ <br />Division of Minerals and Geology r~~ <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Subject: CAMAS Colorado, Inc./Aggregate Division <br />Morrison Quarry (M-73-021) <br />Amendment No. 5 Adequacy Review Response <br />Dear Mr. Squire: <br />On behalf of CAMAS Colorado. Inc./Aggregate Division (CAMAS), Haley & Aldrich. Inc. has <br />prepared this response to your Adequacy Review letter to Mr. Mike Refer dated 23 October <br />1998. We have provided our responses in numbered outline format corresponding to the <br />numbered Adequacy Review questions/comments outlined in your letter. We hope our responses <br />sotisfy your questions/comments so that anticipated Staff Approval on or before 1 December <br />1998 will occur. <br />We have reviewed the "Engineered Fill Slope" and "Wildlife Issues" continents <br />provided by Messrs. Allen Sorenson (DMG) and Dave Weber {DOW), respectively, and <br />OFFICES <br />Boston <br />Mns,nrhusetts <br />Cleveland <br />Ohio <br />offer the following response comments': <br /> <br />Engineered Fill Slone ~~.~ ,~~~ ~,~"(~' / <br />.. , L c I ~~I'r' <br />V (l) The applicant agrees to submi~[he final design for the fil~ pe as a Techn~ al <br />Hartford Revision ather than as an addendum to the annual reclamation r <br />e <br />port. <br />Corrrectin,t / <br />! <br />~~/ iiv,`~d Cuw~.~,-rw ~~, ~""5 ti~+~} ~ n, :t iLr t-I// Slr~Ly. <br />Los ,4ngeles (2) (a) Identification of different types of fill materials proposed for use and any <br />Cnlifornin available testing data for these materials will certainly be a part of the final <br />Manchester design report. <br />Neu' Hnrnpslrire <br />Net,~ark (b) Any soil amendments or geosynthetics used to enhance the stability of the fill <br />Nem )erscy slope will be adequately described in the final design report. <br />Portland <br />Mnim. <br />(c) Atypical cross section(s) illustrating the location of different soil types and any <br /> drains and geosynthetic installations will be included in the final design report. <br />Rochester <br />Neeu lock Note, however, that the intent of the design is to provide the operator with <br /> flexibility via a range of typical scenarios that meet or exceed stability <br />San Diego <br />GeliJnn+in requirements. and that the exact final as-built condition of the fill slope cannot <br />. <br /> be completely predetermined, and will depend upon operational factors that will <br />San Francisco <br />Cnl if Drain span many years during which the slope is constructed. <br />Washington <br />Dls/19Ct Uf CUIIII/S111n GNROlECT5l11'_fIU~LO]\4DE17RESP.WPP <br />VrmiN.•n •nyAW yprr. <br />