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ii. Exact location of instrument, the blast date and time, and the instrument distance from the <br />blast <br />iii. Name of the person and firm taking the reading <br />iv. Name of the person and firm analyzing the seismographic record <br />v. The vibration level recorded <br /> <br />Prepared by: Oscar Mancera <br />Quarry Manager, Portland Plant <br /> <br />Reviewed by: Michael B. Toelle <br />Manager Raw Materials and Quarries <br />Holcim US - Manufacturing Support Organization <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />