Section 77.565. Records of blasting operations

A record of each blast shall be retained for at least 3 years and shall be available for inspection by the Department. Seismographic reports, if applicable, shall be made a part of that record. The record shall include the following data:

(1) The name of the operator conducting the blast and the permit number.

(2) The location, date and time of the blast.

(3) The name, signature and license number of the blaster-in-charge.

(4) The direction and distance, in feet, to the nearest dwelling, school, church or commercial or institutional building and the property name meeting one of the following conditions:

(i) It is not located in the permit area.

(ii) It is not owned or leased by the person who conducts the surface mining activities.

(5) Weather conditions, including temperatures, wind direction and approximate velocity.

(6) The type of material blasted.

(7) The number of holes, burden and spacing.

(8) The diameter and depth of holes.

(9) The types of explosives used.

(10) The total weight of explosives used.

(11) The maximum weight of explosives detonated per delay interval.

(12) The maximum number of holes detonated per delay interval.

(13) The initiation system.

(14) The type and length of stemming.

(15) Mats or other protections used.

(16) The type of delay detonator and delay periods used.

(17) The sketch of the delay pattern.

(18) The number of persons in the blasting crew.

(19) The seismographic and airblast records, when required, including the type of instrument, sensitivity and calibration signal of the gain setting and certification of annual calibration and the following:

(i) The seismographic or airblast level reading, or both, including exact location of the seismograph, its distance from the blast and the name of the property.

(ii) The name of the person taking the seismograph reading.

(iii) The name of person and firm analyzing the seismographic record.

(20) The reasons and conditions for an unscheduled blast.

(21) The total number of blasting caps used.

The provisions of this § 77.565 adopted March 16, 1990, effective March 17, 1990, 20 Pa.B. 1643.

Notation

Cross References

This section cited in 25 Pa. Code § 77.108 (relating to permit for small noncoal operations); 25 Pa. Code § 77.453 (relating to blasting plan); and 25 Pa. Code § 77.463 (relating to surface mining near underground mining).