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Impacts of Mechanical Equipment at Benson Brothers Quarry on Neazby Rock Bluffs <br />TABLE OF CONTENTS <br />NO. <br />1.0 <br />2.0 <br />3.0 <br />4.0 <br />5.0 <br />INTRODUCTION AND SCOPE.. <br />PAGE <br />PHYSICAL CHARACTERISTICS OF GROUND MOTION .......................................... ..............2 <br />GROUND MOTIONS CAUSED BY OPERATING QUARRY MACHINERY .............. ..............5 <br />CONCLUSIONS ......................................................................................................... ..............7 <br />REFERENCES ........................................................................................................... ..............7 <br />ATTACHMENT I -Data and Photographs from the Machinery Vibration Study Conducted by <br />PreSeisTek, Inc. at the Benson Brothers Austin, CO Quarry <br />REVEY Associates, Inc. Page i February 2005 <br />