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~` III IIIIIIIIIIIII III ~ <br />~~ <br />BLAST VIBRATION RESULTS <br />C. F. & I. QUARRY - CANON CITY, COLO. <br />January Z0, 1978 <br /> <br />INTRODUCTION <br />VMS-Nitro Consult, Inc., acting as the blast vibration consultant to C. F. <br />~ I. Corp. - Canon City quarry, monitored the 3:45 PM blast on Tuesday, <br />January 10, 1978. <br />The program consisted of recording and measuring the vibrations occurring <br />at the following Canon City locations: <br />1. Quarry Compressor House <br />2. Murphy Residence <br />3. First Federal Savings & Loan Bldg. <br />4. Witcher Residence <br />5. Color Residence <br />DISCUSSION <br />C. F. & I. Quarry became concerned with the vibrations induced by blasting <br />operation following registered complaints by individuals in the Canon City <br />area. VMErNitro was retained to monitor a blast and determine precise <br />magnitude of vibrations occurring at specified locations. Five seismographs <br />were strategically placed and individually maruied to record induced vibrations - <br />if arty. <br />