§ 9.48.040   Maximum permissible sound levels.
   A.   No person shall cause or permit sound(s) to intrude onto the property of another person which exceeds the maximum permissible sound levels set forth below in this section.
   B.   The sound limitation established herein, as measured at or within the property boundary of the receiving land use, are as set forth in Table 1 appended to this chapter after any applicable adjustments provided for herein are applied. When the sound limitations are exceeded, it shall constitute excessive and unnecessary sound(s) and shall be violations in their own right as well as being prima facie evidence of noise.
   C.   This section is violated if any of the following occur:
      1.   Any continuous sound that exceeds the limits of Table 1 for a cumulative total of greater than 5 minutes in any 10-minute period;
      2.   Any sound that exceeds the limits of Table 1 by 5 dBA for a cumulative total of greater than 1 minute, but less than 5 minutes in any 10-minute period;
      3.   Any sound that exceeds the limits of Table 1 by 10 dBA at any point in time; or
      4.   Any sound that exceeds the ambient noise levels existing by 10 dBA created by a new industrial or commercial noise source on a previously unused industrial or commercial site.