Control of Airblast

Control of Airblast and Ground Vibration for Blasting Operations
The requirements for the control of airblast and ground vibration for blasting operations is applicable to those recorded at the location of private dwellings, public buildings, schools, churches, and community or institutional buildings not owned or leased by the person conducting or contracting for the blasting operation.

Airblast from blasting must be controlled so that the maximum allowable airblast at:
  • An inhabited building, resulting from blasting operations, may not exceed 130 decibels peak when measured by an instrument having a flat frequency response, /- 3 decibels, over a range of at least 6 - 200 Hz;
  • A building not inhabited, resulting from blasting operations, may not exceed 140 decibels peak when measured by an instrument having a flat frequency response, /- 3 decibels, over a range of at least 6 - 200 Hz.
Note: A property owner may register a complaint with the Office of the Fire Marshal, and if considered necessary, measurements on 3 consecutive blasts, using approved instrumentation, may be ordered near to the structure in question.