Table III
| ||
---|---|---|
Frequency Ranges Containing Standard Octave Bands in Cycles
Per Second
|
Octave Band Sound-Pressure Level in Decibels re 0.0002
Dyne/cm2
| |
20 to 300
|
60
| |
300 to 2,400
|
40
| |
Above 2,400
|
30
|
Table IV
| |||
---|---|---|---|
Type or Location of Operation or Character of Noise
|
Correction in Decibels
| ||
Daytime operation only
|
5
| ||
Noise source operates less than:
|
5
| ||
20% of any one-hour period
|
5
| ||
5% of any one-hour period
|
10
| ||
Noise of impulsive character, hammering, etc.
|
-5
| ||
Noise of periodic character, hum, screech, etc.
|
-5
| ||
Property is located in any C, M or MSCO District and is not
within 500 feet, measured horizontally or vertically, of any R District
|
5 (C and MSCO Districts); 10 (M District)
|