C-I Commercial-Industrial Overlay District
Maximum Permitted Sound Pressure Levels | |
|---|---|
Frequency Band Cycles Per Second | Maximum Permitted Sound Pressure Level (Decibel) |
0 to 149 | 67 |
150 to 299 | 59 |
300 to 599 | 52 |
600 to 1199 | 46 |
1200 to 2399 | 40 |
2400 to 4799 | 34 |
4800 and above | 32 |
The sound levels set forth in the above table shall be adjusted to account for differing receiving land uses and times of day as set forth in the following table, when measured at or within the property boundary of the receiving land use. |
Continuous Sound Levels By Receiving Land Use | ||
|---|---|---|
Receiving Land Use Category | Time Frame | Sound Level Adjustment |
Residential, public space, open space, agricultural or institutional | 7:00 a.m. to 10:00 p.m. | 0 dBA |
10:00 p.m. to 7:00 a.m. plus Sundays and legal holidays | -10 dBA | |
Commercial or business | 7:00 a.m. to 10:00 p.m. | +5 dBA |
10:00 p.m. to 7:00 a.m. plus Sundays and legal holidays | 0 dBA | |
Industrial | At all times | +10 dBA |
All uses | Less than 5% of any hour | +5dBA |
Sound pressure levels shall be determined using the "fast" meter characteristic of a Type II meter, meeting the ANSI specifications S1.4, according to the methods set forth in "Specifications for Octave-Band and Fractional-Octave-Band Analog and Digital Filters," S1.11-2004, American National Standards Institute, Inc., New York, NY, as amended. |
C-I Commercial-Industrial Overlay District
Maximum Permitted Sound Pressure Levels | |
|---|---|
Frequency Band Cycles Per Second | Maximum Permitted Sound Pressure Level (Decibel) |
0 to 149 | 67 |
150 to 299 | 59 |
300 to 599 | 52 |
600 to 1199 | 46 |
1200 to 2399 | 40 |
2400 to 4799 | 34 |
4800 and above | 32 |
The sound levels set forth in the above table shall be adjusted to account for differing receiving land uses and times of day as set forth in the following table, when measured at or within the property boundary of the receiving land use. |
Continuous Sound Levels By Receiving Land Use | ||
|---|---|---|
Receiving Land Use Category | Time Frame | Sound Level Adjustment |
Residential, public space, open space, agricultural or institutional | 7:00 a.m. to 10:00 p.m. | 0 dBA |
10:00 p.m. to 7:00 a.m. plus Sundays and legal holidays | -10 dBA | |
Commercial or business | 7:00 a.m. to 10:00 p.m. | +5 dBA |
10:00 p.m. to 7:00 a.m. plus Sundays and legal holidays | 0 dBA | |
Industrial | At all times | +10 dBA |
All uses | Less than 5% of any hour | +5dBA |
Sound pressure levels shall be determined using the "fast" meter characteristic of a Type II meter, meeting the ANSI specifications S1.4, according to the methods set forth in "Specifications for Octave-Band and Fractional-Octave-Band Analog and Digital Filters," S1.11-2004, American National Standards Institute, Inc., New York, NY, as amended. |