All mining activities shall not exceed 70 db(A) at any time as measured at or beyond the property line of any site where the mining activity occurs. For the purposes of determining the property line, fences, vegetation or other physical features commonly associated with property boundaries shall be used. A sound level meter shall be used to measure any noise emanating from a borrow pit site using the A-weighting scale. The person operating the meter shall face the noise source and record the meter’s response observed at ten second periods. Five readings above the allowable decibel limit shall constitute a violation of this chapter.
(Ord. passed 7-16-2012)