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Martin Marietta Materials <br />Spec -Agg 2013 Annual Report <br />1.0 INTRODUCTION <br />Lachel & Associates, Inc. ( Lachel), a Schnabel Engineering company, has prepared this independent annual <br />structural geology evaluation for the Specification Aggregates (Spec -Agg) Quarry located in Golden, <br />Colorado for the 2013 year. This study was conducted at the request of Martin Marietta Materials, Inc. <br />(Martin Marietta), the owner of the quarry, as a requirement for State of Colorado, Permit Number M -74 -004. <br />The structural geology evaluation presented herein includes observations and measurements from the <br />quarry that have been obtained annually by Lachel staff over the past sixteen years (1997 -2013) as well as <br />results of the detailed geotechnical investigation conducted by Lachel in 2003. <br />April 22, 2013 Page 2 Lachel & Associates, Inc. <br />Project 12361005.00 ©2013 All Rights Reserved <br />