The following terms apply to this chapter:
A. Approved blasting contractor. A blasting contractor who has been licensed by the Pima County sheriff to conduct blasting operations in the county and who has been placed on a list of approved blasting contractors.
B. Blasting contractor. A natural person who is responsible for the blasting activities at the individual site. This person has responsible charge of all the operations during the layout, drilling, loading of explosives, and detonation of the explosives.
C. Blasting operations. The use of an explosive device or explosive material to destroy, modify, obliterate or remove any obstruction of any kind from a piece of property.
D. Blasting site. A geographically defined area shown on a project site plan or a parcel map where blasting will occur. Distances for inspections and notification purposes are measured from the perimeter boundary lines of the parcel or project site on which the blasting site is located.
E. Blasting permit. The permit issued by the Pima County engineer wherein the blasting contractor is given permission to blast within the county under the terms and conditions specified in the permit, this chapter and as required by any other applicable federal, state, and local law or regulation.
F. Certificate of insurance. A writing or document issued by an insurance company authorized to do business in the state of Arizona stating that the insurance company has issued a policy of liability insurance covering property damage and bodily injuries that may result from blasting operations occurring as a result of blasting operations.
G. Explosives. Any chemical compound, mixture or device, the primary or common purposes of which is to function by explosion. The term includes, but is not limited to, dynamite, nitroglycerine and other high explosives, including plastic explosives, black powder, pellet powder, initiating explosives, detonators, safety fuses, squibs, detonating cord, igniter cord and ignitors.
H. Scaled distance. The geographic distance, from a structure to the point of the maximum charge weight per delay of the blast, divided by the square root of the maximum charge weight per delay.
Example: Given that you want to maintain a scaled distance of 100 feet and the closest structure is 200 feet from the blast, your maximum charge weight per delay would be 4 pounds.
(Ord. 1997-58 § 1, 1997)