(a) "Excessive noise," as used in this chapter, means any noise, or combination of noises, emanating from any source at a decibel level exceeding that herein described for each designated zoning specification, as follows:
Zoning Designation of the Property on on Which the Noise Source is Located | Maximum Decibel Level Permitted |
U1, U2 | 55 |
All U3 and ASF Districts | 55 |
U4, U5, all R Districts | 65 |
U6, U7, U8 | 70 |
(b) "Decibel," as used in this section, means the unit for measuring the volume of sound, equal to twenty times the base ten logarithm of the ratio of the measured pressure of a particular sound over a reference pressure of twenty micropascals (twenty micronewtons per square meter).
(Ord. 166-1994. Passed 6-20-94.)