Q. How is blasting noise and vibration measured?
A. A seismograph is used to measure both of these effects of blasting. Seismographs are set up next to the closet structure to the blast site. These machines record the ground vibration and noise generated by the blast. This information is used to determine if the blast has exceeded the limits set in the regulations.

Q. What records does the blaster have to keep?
A. The blaster is required to keep detailed records of each blast. These records contain the size, time, and location of the blast, the amount of explosives used, and the results of the seismograph monitoring.

Q. Will you hear or feel the blast?
A. Yes, you could, depending how close you are to the blasting site. Humans are fairly sensitive to noise and sound. What you may feel does not necessarily mean that damage is occurring. Let the blasting company know if you are being startled or if you have other concerns about what is taking place.

Q. What if I am sure that blasting damage has occurred?
A. If you feel that damage may have occurred to your property, you can fill out a Blasting Damage Complaint Form. This form is available from the Fire Department. Once filled out and returned to the Fire Prevention Bureau, the blasting company will be required to submit to the fire department the records for the blast believed to have caused the damage. Those records will be reviewed by both the fire department and the Office of the State Fire Marshal for any violations of the regulations. Additionally, the blasting company or its insurance company is required to respond to the complaint and to investigate the claim.

Q. What precautions can be taken before blasting starts?
A. If offered a preblast survey, accept the offer. The survey is simply an inventory of existing conditions of the property. It is also an opportunity for the property owner to ask questions and the blasting company to perform some public relations. If you have any concerns or questions, let them be known. The blasting company should be ready and willing to answer questions or address any additional concerns you may have.