(a) At the District Boundaries. In all commercial zoning districts, at no point on or beyond the boundary of the zoning district shall the sound pressure level resulting from any use, operation, or activity exceed the maximum permitted sound levels as set forth in Tables IA and IIA.
Table IA: Preferred Frequencies | |
Center Frequency Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
Table IA: Preferred Frequencies | |
Center Frequency Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
31.5 | 65 |
63 | 67 |
125 | 66 |
250 | 59 |
500 | 52 |
1000 | 46 |
2000 | 37 |
4000 | 26 |
8000 | 17 |
Table IIA: Pre-1960 Octave Bands | |
Octave Band, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
Table IIA: Pre-1960 Octave Bands | |
Octave Band, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
20 - 75 | 67 |
75 - 150 | 66 |
150 - 300 | 61 |
300 - 600 | 54 |
600 - 1200 | 47 |
1200 - 2400 | 39 |
2400 - 4800 | 29 |
4800 - 10KC | 20 |
(b) At Lot Lines. In all business zoning districts, at no point on or beyond the boundary of any lot shall the sound pressure level resulting from any use, operation, or activity exceed the maximum permitted decibel levels for the designated octave bands as set forth in Tables IB and IIB.
Table IB: Preferred Frequencies | |
Center Frequency Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
Table IB: Preferred Frequencies | |
Center Frequency Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
31.5 | 76 |
63 | 74 |
125 | 68 |
250 | 63 |
500 | 57 |
1000 | 52 |
2000 | 45 |
4000 | 38 |
8000 | 32 |
Table IIB: Pre-1960 Octave Bands | |
Octave Band, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
Table IIB: Pre-1960 Octave Bands | |
Octave Band, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels
|
20 - 75 | 75 |
75 - 150 | 70 |
150 - 300 | 64 |
300 - 600 | 59 |
600 - 1200 | 53 |
1200 - 2400 | 47 |
2400 - 4800 | 40 |
4800 - 10KC | 34 |
(Ord. 16-2003. Passed 5-1-03.)