§ 32-14. Class A permit regulations., Chapter 32. BLASTING, IMPULSIVE NOISE AND VIBRATION, Code of Ordinances, Rockwood

Blasting insurance required. Any person holding a Class A blasting permit must obtain public liability insurance, insuring itself or the entity and the City in the amounts of $500,000 for property damage and $1,000,000 to $3,000,000 per personal injury. A copy of such policy shall be filed at the City Clerk's office for public inspection and copying.

Blasting schedule; inspection. The person holding a Class A blasting permit will provide the City with an estimated schedule of all blasting operations, and will also give the City notice as to time and occurrences of each blast prior thereto by at least two hours. The City Council shall have the right to have a staff representative on site at the time of each blasting upon notification to the person as to that effect. The person shall compensate the City at the rate as set by City Council from time to time, per hour, or fraction thereof, for the services of the representative and this cost shall be borne by the permit holder, in addition to the cost of the permit fees.

Use and handling of explosives. The use of explosives will only be undertaken by qualified personnel. No blasting operations shall be permitted within 500 feet of the property line of any dwelling, building, school, church, theater, or other structure which the Building Inspector may deem hazardous.

Seismograph readings. Seismograph readings will be interpreted by a firm approved by the City. Seismograph readings shall not exceed those as prescribed in §§ 32-10 to 32-12. The seismograph will be set up at locations to be predetermined by the City and the person, firm, corporation or association. In addition, the City shall have the option to select other sites as they feel is necessary to take an adequate reading as to any possible damage to adjacent structures. All costs incurred for the requirements of this subsection shall be borne by the permit holder. If, after a sufficient period of observation, instrument readings are consistent within the prescribed limits, then at the election of the City Council the seismograph readings requirement may be suspended. This, however, does not prevent the City from conducting periodic seismograph measurements. Seismograph recordings will be made with an instrument yielding direct three-component measurement of particle velocity together with measurement of air blast on magnetic tape or film; it shall contain complete internal seismic calibration (i.e., recorder and seismometers) capability.

Hours of blasting. Class A blasting permit holders will only be allowed to detonate blasts between the hours of 10:00 a.m. to 3:00 p.m., Monday through Friday, excluding City holidays which fall during the Monday-through-Friday period. If a delay in blasting until after 3:00 p.m. is necessary due to unforeseen circumstances detrimental to safety, the Building Inspector may permit a blast to take place after 3:00 p.m.