CHAPTER 63 - LOT DEVELOPMENT STANDARDS
63.630 LOCAL INDUSTRIAL PERFORMANCE STANDARDS
The City of Rochester shall enforce the following standards for industrial nuisance where the regulations are not superseded by more stringent State, Federal or other local standards.
63.631
Odors: In those instances where Federal and State regulations are not applicable, no use in an M-1 or M-2 District shall emit any continuous, frequent, or repetitive odor or odor causing substances which is detectable at or beyond the point of measurement. An odor which is emitted no more than fifteen (15) minutes in any one day nor more than two (2) days out of the calendar month shall not be deemed to be continuous, frequent, or repetitive under this subsection. The existence of an odor shall be presumed when the concentration of the odor causing substance in the air at or beyond the point of measurement exceeds the lowest concentration listed as the odor threshold for such a substance in TABLE III, ODOR THRESHOLDS, appearing in Chapter 5 “Physiological Effects”, “The Air Pollution Abatement Manual”, Manufacturing Chemists’ Association (1952) or any subsequent amendments or revisions thereto. Substances which are not listed in that table shall not be deemed to be odorous unless analysis by a competent chemist demonstrates that a discernible odor is being emitted. In any district other than the M-1 or M-2, no emission of an odor or odor causing substances shall be permitted.
63.632
Heat: Where the Federal and State regulations are not applicable, no continuous, frequent, or repetitive discharge or emission of heat shall be allowed if it increases the ambient air or water temperature by one degree centigrade (1 degree C) or more or beyond the lot line by one degree centigrade (1 degree C) or more or beyond the lot line of the property from which it is being emitted or discharged.
63.633
Fire and Explosion Hazards: All activities involving, and all storage of, flammable and explosive materials shall be provided with adequate safety devices against the hazard of fire and explosion and with adequate fire fighting and fire suppression equipment and devices standard in the industry. Burning of waste materials in open fires is prohibited.
63.634
Glare: In the M-1 and M-2 districts, no direct or sky reflected glare, whether from flood lights or from high temperature processes, such as combustion or welding, shall cause illumination in excess of 0.5 foot-candles at the point of measurement.
In all other districts, no operation or activity shall be conducted so that any glare, whether direct or reflected, is visible at the point of measurement.
63.635
Smoke: Measurement of smoke shall be at the point of emission. The Ringleman Smoke Chart published by the United States Bureau of Mines shall be used for the measurement of smoke. the following table indicates for the various zoning districts the acceptable level of smoke emissions. These provisions, applicable to visible gray smoke, shall also apply to visible smoke of a different color but with an equivalent apparent opacity.
| Zoning District | Maximum Level of Emission | Exception |
| R-1, R-1x, R-2, R-3, R-4, and Developing Residential Areas | Ringleman No. 0 | None |
| B-1, B-4, CDC, MRD | Ringleman No. 1 | Smoke of a Shade Equal to No. 2 on the Chart may be Emitted for a Total of Eight Minutes during any one hour period. |
| M-1, M-2 | Ringleman No. 2 | Smoke of a Shade Equal to No. 3 on the Chart may be Emitted for a Total of Eight Minutes during any one hour period. |
63.636
Particulates: No solid or liquid particles shall be emitted at any point in concentrations to exceed 0.1 grains per cubic feet of conveying gas in any residential district and 0.3 grains per cubic feet of conveying gas in any other district. For measurement of the amount of particles in gases resulting from combustion, standard corrections shall be applied to a stack temperature of 500 degrees Fahrenheit and fifty (50%) percent excess air.
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