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§ 158.99 PENALTY.
   (A)   Noise caused by motor vehicles. Any person who violates any provision of § 158.04 for the first time within any 12 month period shall be fined an amount of not less than $300. Each subsequent violation of § 158.04 within the same 12 month period shall result in a fine of not less than $1,000 but shall not exceed $2,500. Each day such a violation occurs shall constitute a separate violation for purposes of this division.
   (B)   Other violations. Any person found in violation of any other provision of this chapter other than § 158.04 shall be subject to a fine in an amount not to exceed $2,500 for each such violation. Each day a violation occurs shall constitute a separate violation for purposes of this division.
(BC Ord. 2023-14, passed 7-24-23)
APPENDIX A: SCIENTIFIC DEFINITIONS
§ 1 SCIENTIFIC DEFINITIONS.
   The scientific definitions of the terms used in this chapter shall be:
   A-WEIGHTED SOUND LEVEL. The sound pressure level of a sound measured through an a-weighted filter network. The level read is designated dB(A) or dBA.
   DECIBEL (dB). The unit used for comparing the sound pressure level of a sound to the sound pressure level of a reference sound having a sound pressure of 20 micropascals.
   FREQUENCY. The number of periodic oscillations, vibrations, or waves per unit time (usually one second).
   HERTZ. The unit for measuring the frequency of a sound. The number of hertz is the number of cycles per second of a periodic sound pressure wave.
   OCTAVE BAND. A portion of the entire sound frequency spectrum contained between two frequencies, A and B, such that A = 2B.
   SOUND PRESSURE LEVEL. Twenty times the logarithm (base 10) of the ratio of the measured sound pressure to a reference pressure of 20 micropascals. The sound pressure level is expressed in decibels (dB).
      Sound Pressure A
      SPL = 20LOG10 10
      Sound Pressure B
      Sound Pressure A = Measure Sound Pressure
      Sound Pressure B = Referenced Sound Pressure
      (10 Micropascals)
(BC Ord. 2023-14, passed 7-24-23)
APPENDIX B: OCTAVE BAND BREAKDOWNS OF dBA LIMITS
§ 1 OCTAVE BAND BREAKDOWN OF dBA LIMITS.
   The octave-band breakdowns of the dBA limits used in this chapter shall be:
   (A)   For a residential zone.
 
For a Residential Zone (55 dBA)
Octave Band Center Frequency (hz)
Maximum Boundary SPL (dB)
31.5
72
1,000
45
2,000
39
4,000
34
8,000
32
 
   (B)   For a commercial zone.
 
For a Commercial Zone (64 dBA)
Octave Band Center Frequency
Maximum Boundary SPL (dB)
31.5
79
1,000
55
2,000
50
4,000
46
8,000
43
 
   (C)   For an industrial zone.
 
For an Industrial Zone (dBA)
Octave Band Center Frequency
Maximum Boundary SPL (dB)
31.5
80
1,000
57
2,000
52
4,000
48
8,000
45
 
(BC Ord. 2023-14, passed 7-24-23)