(A) The drilling and redrilling of any well shall be conducted in such a manner as not to cause excessive noise, odor or vibration.
(B) It shall conform to the following standards.
(1) Where drilling and redrilling operations are conducted at a distance of 300 feet or more from occupied residential areas, no sound-deadening will be required unless the Agency finds the precaution is necessary to minimize excessive disturbance to such areas.
(2) Where the Agency finds such drilling is being conducted in areas in which disturbance to residential areas could reasonably be anticipated, the operator of the drilling operation shall enclose the entire derrick and/or portable drilling mast at least on three sides to a height of 20 feet and all machinery used in connection with drilling of any well with fire-resistant sound-deadening material which shall be maintained in a serviceable condition. No operations, except for well logging, shall be conducted outside of the enclosures.
(3) The Agency may waive the sound-deadening requirements under subsection (2) at a height of 30 feet and above, if in its opinion the sound-deadening is not required at such height. The Secretary may waive any of the sound- deadening requirements under subsection (2) if in his or her opinion they are unnecessary in a particular case and no reasonable complaints have been made against a particular well.
(`78 Code, § 14.16.090.)