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<br /> <br />Consulting <br />Engineers and <br />Scientists <br />AM-07 Geotechnical <br />Stability Exhibit <br />Engineering Evaluation of Highwall Design <br />for the South and West Quarries of the <br />Morrison Quarry <br />Aggregate Industries Morrison Quarry <br />Permit M-1973-021 <br />Jefferson County, Colorado <br />Submitted to: <br />Colorado Division of Reclamation Mining and <br />Safety <br />Attn: Michael Cunningham <br />1313 Sherman St, Room 215 <br />Denver, CO 804203 <br />Submitted by: <br />GEI Consultants, Inc. <br />4601 DTC BLVD, Suite 900 <br />Denver, CO 80223 <br />Project 2003841 <br /> <br />November 2020 <br /> <br /> <br />Andrew B. Lockman, P.G. <br />Geological Engineer <br /> <br /> <br /> <br />William H. Walton, P.E.(CO), S.E.(IL) <br />Senior Reviewer