In the I-1 Light Industrial district and the PD-4 Industrial Planned Development District, 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 IC and IIC:
TABLE IC: PREFERRED FREQUENCIES | |
Center Frequency, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels |
TABLE IC: PREFERRED FREQUENCIES | |
Center Frequency, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels |
31.5 | 76 |
63.0 | 74 |
125.0 | 68 |
250.0 | 63 |
500.0 | 57 |
1,000.0 | 52 |
2,000.0 | 45 |
4,000.0 | 38 |
8,000.0 | 32 |
TABLE IIC: PRE-1960 OCTAVE BANDS | |
Octave Band, Cycles Per Second | Maximum Permitted Sound Pressure Level, Decibels |
TABLE IIC: 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 - 10 KC | 34 |
('80 Code, § 152.244) (Ord. 94-14, passed 7-5-94)