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Blasting Impacts and Rock Slope Stability Amt for Cottonwood Quarry in Gland County, CQ <br />TABLE OF CONTENTS <br />NO. PAGE <br />1.Q INTRODUCTION AND SCOPE..........................:............................................1 <br />2.0 BLAST CONCERNS AND IMPACTS..............................................................3 <br />3.0 BLAST EFFECTS..........................................................................................4 <br />3.1 Vibration Ground Waves.......................................................:..............4 <br />3.2 Vibration Perception and Damage Criteria...........................................6 <br />3.3 Blast Noise (Air-Overpressure).............................................................7 <br />3.4 Air -Overpressure Measurement Scales................................................7 <br />3.5 Blast Vibration Intensity Predictions.....................................................9 <br />3.6 Human Response to Transient Vibration..............................................10 <br />4.0 SPECIFIC CGTFONWOOD-QUARRY BLAGTWG IMPAETSTANALYSES.....12 <br />4.1 Impacts on Water Resources...............................................................12 <br />4.2 Security of Explosive Materials.............................................................13 <br />4.3 Damage to Neighboring Structures.....................................................14 <br />4.4 Human and Animal Impacts.................................................................16 <br />4.5 Control of Dust.....................................................................................17 <br />4.6 Impacts on Soil Resources...................................................................17 <br />5.0 STABILITY OF MINED ROCK SLOPES.........................................................18 <br />6.0 FINDINGS.............................................................................................•.........18 <br />7.0 REFERENCES................................................................................................19 <br />REVEY Associates, Inc. Page i April 2W4 <br />