Ruling by Planning Commission. Within 20 days after the commission has received the aforesaid application agreed to by the applicant, the commission shall determine whether reasonable measures are being employed to assure compliance with the applicable performance standards. On such basis, the commission may recommend approval or disapproval of a conditional use permit or may recommend a modification of the proposed plans, construction specifications, device or operation to the city council. The city council shall carefully consider the recommendations of the planning commission before acting on the conditional use.

Conditional Compliance. Any permit so authorized and issued shall show only that reasonable measures are being taken. It shall not relieve the applicant of the responsibility of meeting such standards when the plant is actually in operation; and, in case of failure to perform in accordance with the standards, whatever additional devices or modifications in process shall be necessary to achieve full compliance with the standards, shall be the sole responsibility of the applicant.

Continued Enforcement. The planning director shall investigate any purported violation or performance standards and, if necessary for such investigation, may request that the city council employ qualified experts. Should the violation of performance standards threaten the public health, safety, or welfare, the city council may, after due notice and hearing, order the offending plant to cease operation until proper steps are taken to correct the conditions which cause the violation. The services of any qualified experts, employed by the city council to advise in establishing a violation, shall be paid by the violator if said violation is established in a hearing, otherwise by the city. Operation of a plant ordered to cease operation pursuant to this subsection shall be a class C misdemeanor for each day of such use.

Noise. All industries shall be required to comply with the Riverton City noise ordinances found in the Riverton City Code.

Vibration. No vibration shall be produced that is transmitted through the ground and is discernible without the aid of instruments at the points of measurement specified, nor shall any vibration produced exceed 0.002g peak at up to 50 cps frequency, measured at the point of measurement using either seismic or electronic vibration measuring equipment. Vibrations occurring at higher than 50 cps frequency or a periodic vibration shall not induce accelerations exceeding 0.001g. Single impulse periodic vibrations occurring at an average interval greater than five minutes shall not induce accelerations exceeding 0.01g.

Odors. No emission shall be permitted of odorous gases or other odorous matter in such quantities as to be readily detectable when diluted in the ratio of one volume of odorous air to four volumes of clean air at the points of measurement or at the point of greatest concentration. Any process that may involve the creation or emission of any odors shall be provided with a secondary safeguard system, so that control will be maintained if the primary safeguard system should fail. There is hereby established as a guide in determining such quantities of offensive odors Table III, Odor Thresholds, in Chapter 5, Air Pollution Abatement Manual, copyright 1959, by Manufacturing Chemists' Association, Inc., Washington, D.C., and said manual and/or table as subsequently amended.

Glare.