020-6 Wyo. Code R. § 6-5 - Records of Blasting Operations

(a) A record of each blast, including seismograph reports, shall be retained for at least three years and shall be available for inspection by the Administrator and the public on request. The record shall contain the following data:

(i) Name of permittee, operator, or other person conducting the blast;

(ii) Location, date and time of blast;

(iii) Name, signature, and certification number of blaster conducting the blast;

(iv) Identification, direction and distance, in feet, from the nearest blast hole to the nearest dwelling, public building, school, church, and community or institutional building outside the permit area neither owned nor leased by the permittee;

(v) Weather condition;

(vi) Type of material blasted;

(vii) Sketches of the blast pattern including number of holes, burden, spacing, decks and delay pattern;

(viii) Diameter and depth of holes;

(ix) Types of explosives used;

(x) Total weight of explosives used per hole;

(xi) Maximum weight of explosives detonated within any eight millisecond period;

(xii) Initiation system;

(xiii) Type and length of stemming;

(xiv) Mats or other protections used;

(xv) Seismograph and airblast records, where required, including:

(A) Type of instrument, sensitivity, and calibration signal or certification of annual calibration;

(B) Exact location of instrument and the date, time, and distance from the blast;

(C) Name of person and firm taking the seismograph reading;

(D) Name of person and firm analyzing the seismograph record; and

(E) The vibration and/or airblast level recorded,

(xvi) Reasons and conditions for each unscheduled blast.

Notes

020-6 Wyo. Code R. § 6-5