It is the intent of this section to provide that conditional uses in all residence districts and permitted and conditional uses of land and buildings in all business and industry districts shall be established and
maintained with proper appearance from streets and adjoining properties and to provide that each permitted use shall be a good neighbor to adjoining properties by the control of the following.
(A) Standards.
(1) Landscaping. All required yards shall either be open landscaped and green areas or be left in a natural state. If any yards are to be landscaped, they shall be landscaped attractively with lawn, trees, shrubs and the like. Any areas left in a natural state shall be properly maintained in a sightly and well-kept condition. Yards adjoining any residence district shall be landscaped with buffer planting screens. Plans of the screens shall be submitted for approval as a part of the site plan and installed prior to issuance of a certificate of occupancy for any tract in the district.
(2) Noise. Noise shall be measured on any property line of the tract on which the operation is located. Noise shall be muffled so as to not become objectionable due to intermittence, beat frequency, shrillness or intensity.
(3) Odors. Odors from any use hereafter begun shall not be discernible at the property line to a greater degree than odors from plants for the manufacture or fabrication of books, textile weaves, electronic equipment or other plants in which operations do not result in greater degree of odors. Detailed plans for the prevention of odors crossing property lines may be required before the issuance of a building permit.
(4) Glare. Glare, whether direct or reflected, such as from floodlight or high temperature processes, and as differentiated from general illumination, shall not be visible beyond any property line.
(5) Exterior lighting. Any lights used for exterior illumination shall direct light away from adjoining properties.
(6) Vibration. Vibration shall not be discernible at any property line to the human sense of feeling for three minutes or more duration in any one hour.
(7) Smoke. Measurements shall be of the point of emission. The Ringelman Smoke Chart, published by the United State Bureau of Mines, shall be used for the measurement of smoke. Smoke not darker or more opaque than No. 1 on the Chart may be emitted, except that smoke not darker or more opaque than No. 2 on the Chart may be emitted for periods not longer than four minutes in any 30 minutes. These provisions, applicable to visible gray smoke, shall also apply to visible smoke of different color, but with an equivalent opacity.
(8) Dust. Solid or liquid particles shall not be emitted at any point in concentrations exceeding 0.3 grain per cubic foot of the conveying gas or air. For measurement of the amount of particles in gases resulting from combustion, standard corrections shall be applied to a stack temperature of 500°F and 50% excess air.
(9) Hazard. Every operation shall be carried on with reasonable precautions against fire and explosion hazards.
(B) Compliance.
(1) In order to ensure compliance with the performance standards set forth above, the Council may require the owner or operator of any permitted or conditional use to have investigations and tests as may be required to show adherence to the performance standards.
(2) The investigation and tests as are required to be made shall be carried out by an independent testing organization as may be selected by the city.
(Prior Code, § 11.20)