The operation of any use permitted in this chapter is subject to the standards of performance, as follows:
1. Vibration. Every use shall be so operated that the maximum ground vibration generated is not perceptible without instruments at any point on the lot line of the lot on which the use is located.
2. Odor. Every use shall be so operated that no offensive or objectionable odor is emitted.
3. Smoke and Air Pollution. Every use shall be so operated that no smoke from any source shall be emitted that exceeds the requirements set by the State Air Pollution Control Act, as amended June 1967, and as the same may hereafter from time to time be amended.
4. Toxic Matter. The release of airborne toxic matter from any operation or activity shall not exceed the fractional quantities permitted below; the Threshold Limit Values adopted by the American Conference of Governmental Industrial Hygienists. If a toxic substance is not listed, verification that the proposed level of toxic matter will be safe and not detrimental to the public health or injurious to plant and animal life will be required. The measurement of toxic matter shall be on the average of any 24-hour sampling period.
A. In all C Zone Districts, the release beyond lot lines of airborne toxic matter shall not exceed one-eighth of the Threshold Limit Values.
B. In all I Zone Districts, the release of airborne toxic matter shall not exceed one-eighth of the Threshold Limit Values beyond zone boundary lines.
5. Radiation. Every use shall be so operated that there is no dangerous amount of radioactive emissions in accordance with the standards of the Federal Radiation Council.
6. All lighting shall be of a type, design, and placement, and also be directed away from and shielded in a manner to minimize impact on residential districts or uses and shall comply with Hiawatha Code Chapter 168.
7. Any external sound system shall be designed, located and operated to minimize impact on residential districts or uses and all sounds generated on the premises shall, in any event, not exceed the maximum permissible sound levels established in the City’s Noise Ordinance, Chapter 53 of the Municipal Code.
(Ord. 887 – Dec. 17 Supp.)