(a) No person shall cause or permit mound vibration into the property of another person that exceeds the limits set forth below in this section.
(1) Ground vibration as measured at the boundary of a residential planning district and an industrial planning district shall not exceed 0.01 inches per second (0.00025 meters per second) RMS velocity.
(2) Ground vibration as measured at a common property boundary of any two properties within any industrial planning district shall not exceed 0.1 inches per second (0.00025 meters per second) RMS velocity.
(b) Method of measurement: Vibration measurement procedures shall conform to the methods described in this section or to procedures approved by the Arizona Department of Environmental Quality.
(1) Instrumentation shall be capable of measuring RMS value of the vibration velocity over the frequency range of 10 to 1.000 Hz.
(2) Measurement values shall be recorded for a sufficient period of observation to provide a representative sample.
(3) Attachment of the vibration transducer to the mound shall be by magnetic or screw attachment to a steel bar of a minimum of 9 inches (22.9 cm.) in length, driven flush with the ground surface.
(c) Exemptions: The rules of this section shall not apply:
(1) Vibration resulting from the operation of any equipment or facility of a surface carrier engaged in interstate commerce by railroad.
(2) Vibration resulting from the operation of any road vehicle.
(3) Vibration resulting from construction activities and equipment, between 6 a.m. and 8 p.m.
(4) Vibration resulting from roadway maintenance and repair equipment.
(Ord. 2018-003, passed 2-8-18)