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I ~ BLAST F,ECORD <br />1. Company name _ <br />2. Location of blast <br />Operator <br /> <br />3. Date of blast Time of blast <br />4. Weather conditions: Temperature ~ Wind direction <br />5. Direction, distance, and description of nearest structure _ <br />Velocity <br />6. Type of material blasted <br />7. Diameter of holes Depth of holes <br />8. Total number of holes Burden Spacing <br />9. Types of explosives used (include any additional blasting agents, if not covered under <br />initiation system) ____________ __ <br />!0. Maximum weight of explosives detonated within any eight (8) millisecond period <br />11. Maximum number of holes detonated within any eight (8) millisecond period <br />12. Type of initiation <br />13. Type of stemming Length of stemming • <br />14. Type and length of delay detonators used <br />15. Total number of persons in blasting crew <br />16. Type of mats or other protection used <br />17. Calculation of scale distance formula: <br />l8. Seismograph location <br />19. Seismograph distance from blast Operator <br />20. Firm analyzing the seismograph record <br />21. Seismograph reading (including calibration signal of gain setting) <br />Name of blaster in charge _ <br />Signature of blaster in charge <br />License Number <br />22. Sketch of the delay pattern employed (may use back of this page). • <br />