(8) 'Department' means the Department of the Environment.
(7) 'Demolition' means any dismantling, destruction, or removal activities. For the purpose of this subtitle, 20 micropascals shall be the standard reference pressure. (6) 'Decibel (dB)' means a unit of measure equal to ten times the logarithm to the base ten of the ratio of the square of the sound pressure to the square of a standard reference pressure. (5) 'dBA' means abbreviation for the sound level in decibels determined by the A-weighting network of a sound level meter or by calculation from octave band or one-third octave band data. (3) 'Curtilage' means the enclosed land surrounding a house or dwelling and includes all areas maintained in lawn or horticultural plantings and may be bounded by a fence or wall, but would not typically include areas more distant than 300 feet from the dwelling unless those areas were horticulturally maintained and routinely used as areas of personal refuge, or supported accessory structures that were routinely utilized. (2) 'Construction' means any site preparation, assembly, erection, repair, alteration, or similar activity. (1) 'ANSI' means American National Standards Institute or its successor bodies. In this chapter, the following terms have the meanings indicated.
