If the sound radiated from any source is not smooth and continuous and is not radiated between the hours of 8:00 p.m. and 6:00 a.m. of the following day, one or more of the corrections in Table II below shall be added or deducted from each of the decibel levels above.
TABLE II
Type of Operation or Character of Sound | Correction in Decibels |
Sound source operates only for an hour once a day from 8:00 a.m. to 6:00 p.m. | Add 5 dB(A)* |
Sound source operates only for 30 minutes, or less, once a day from 10:00 a.m. to 4:00 p.m. | Add 10 dB(A) |
Sound of impulsive character (hammering, etc.) | Deduct 5 dB(A) |
Sound of periodic character (hum, screech, etc.) | Deduct 5 dB(A) |
*Apply one of these corrections only.
(Ord. 78-61. Passed 6-19-78.)