(A) Generally. No person shall cause or no person who has charge, care or control of any lot shall permit vibration to emanate from a lot which exceeds the maximum permissible vibration levels established by this section.
(B) Maximum permissible vibration levels. The following maximum vibration acceleration levels are hereby established.
Table 5 Permissible Vibration Acceleration Levels *1 as Measured at the Property Line Adjoining | ||||
Frequency (Kz) | Residential | Commercial | Industrial | |
Day | Night
| |||
Table 5 Permissible Vibration Acceleration Levels *1 as Measured at the Property Line Adjoining | ||||
Frequency (Kz) | Residential | Commercial | Industrial | |
Day | Night
| |||
1.0 | 57.5 | 54.5 | 63.5 | 75.5 |
2.0 | 57.5 | 54.5 | 63.5 | 75.5 |
2.5 | 58.0 | 55.0 | 64.0 | 76.0 |
3.15 | 58.5 | 55.5 | 64.5 | 76.5 |
4.0 | 59.0 | 56.0 | 65.0 | 77.0 |
5.0 | 59.5 | 56.5 | 65.5 | 77.5 |
6.3 | 60.0 | 57.0 | 66.0 | 78.0 |
8.0 | 60.5 | 57.5 | 66.5 | 78.5 |
10 | 62.5 | 59.5 | 68.5 | 80.5 |
12.5 | 64.5 | 61.5 | 70.5 | 82.5 |
16 | 66.5 | 63.5 | 72.5 | 84.5 |
20 | 68.5 | 65.5 | 74.5 | 86.5 |
25 | 70.5 | 67.5 | 76.5 | 88.5 |
31.5 | 72.5 | 69.5 | 78.5 | 90.5 |
40 | 74.5 | 71.5 | 80.5 | 92.5 |
50 | 76.5 | 73.5 | 82.5 | 94.5 |
63 | 78.5 | 75.5 | 84.5 | 96.5 |
80 | 80.5 | 77.5 | 86.5 | 98.5 |
100 | 82.5 | 79.5 | 88.5 | 100.5 |
Notes to table: | ||||
*1 In decibels (dB) re: 1 x 10 G acceleration | ||||
(1) In all instances in which the lot from which vibration emanates does not directly adjoin a residential, commercial or industrial lot the performance standards governing vibration shall apply at the nearest residential, commercial or industrial lot boundary.
(2) In order for a person to be in violation of this section, the source or sources of vibration must be identifiable in relation to the ambient vibration and must exceed the ambient vibration level by five decibels or more in at least one frequency band.
(3) If a mixed lot exists, the most restrictive lot standard shall be used when establishing maximum permissible vibration levels under this section.
(4) Between the hours of 10:00 p.m. and 7:00 a.m. prevailing time, the maximum permissible vibration levels provided above at residential boundaries shall be reduced by three decibels in each frequency band.
(5) The maximum permissible vibration levels shall apply to any type of impulsive or non-impulsive, continuous or intermittent source of ground vibration.
(Prior Code, § VII-5.09)