All tests shall be conducted according to the following procedures:
(A) Complaint driven. When the measurement is the result of a complaint, measurements will be taken at the property line of the receiving property.
(B) Normal monitoring. When the measurement procedure is in the normal course of monitoring sound, the measurements will be taken at the real property line of the source of the sound.
(C) Outdoor conditions. No outdoor measurements must be taken while winds exceed (including gusts) 15 miles per hour; under conditions that will allow the sound level meter to become wet; or when the ambient temperature is out of range of tolerance on the sound meter.
(D) Calibration. The sound level meter must be verified and calibrated according to the manufacturer's specifications immediately prior to taking the measurements.
(E) Meter placement. The sound level meter must be placed a minimum of four feet above the ground or from any reflective surface. The microphone must be pointed at the sound source.
(F) Measurements. Measurements must include “high”, “average”, and “low” readings. If the sound level meter does not provide these multiple readings, a minimum of three separate measurements must be taken at a single location at varying time intervals. The average sound level reading shall be used to determine whether there has been a violation of this chapter.
(G) Monitoring report. The report for each measurement session must include:
(1) The day, date, and time of the measurements;
(2) Date and time of recent calibration;
(3) Temperature and wind speed at the time of measurement;
(4) Identification of the monitoring equipment;
(5) Location, land use, and description of the source;
(6) Location and land use of the listener; and
(7) Sound level measurements.
(H) Extraneous sounds. If there are extraneous sound sources that are unrelated to the measurements and increase the monitored sound level, the measurement shall be postponed until these noises subside.
(Ord. 2023-18, passed 7-18-23)