(A) Sound levels shall be measured with a sound level meter and associated octave band filter manufactured according to standards prescribed by the IOSHA. The flat network and the slow meter response shall be used. Sounds of short duration, as from forge hammers, punch presses and the like which cannot be measured accurately with the sound level meter shall be measured with the impact noise analyzer, as manufactured by the General Radio Company or its equivalent, in order to determine the peak value of the impact. For sounds so measured, the peak values shall not exceed by six decibels the values given in division (B) of this section.
(B) At no point on the boundary of a Residence, Commercial or Light Industrial (L.I.) District shall the sound pressure level of any operation or plant (other than background noises not directly under the control of the manufacturer) exceed the decibel limits in the octave bands designated below.
(L.I.) (G.I.) Zoning Districts
| ||
Octave Band Frequency (Cycles per Second)
| Residential Zoning District Boundaries
| Commercial Zoning District Boundaries
|
(L.I.) (G.I.) Zoning Districts
| ||
Octave Band Frequency (Cycles per Second)
| Residential Zoning District Boundaries
| Commercial Zoning District Boundaries
|
.0 to 75 | 72 | 79 |
75 to 150 | 67 | 74 |
150 to 300 | 59 | 66 |
300 to 600 | 52 | 59 |
600 to 1,200 | 46 | 53 |
1,200 to 2,400 | 40 | 47 |
2, 400 to 4, 800 | 34 | 41 |
Over 4,800 | 32 | 39 |
(Ord. 1995-12, passed 7-6-95)