(a) No person shall cause or allow the emission into the atmosphere from any air contaminant source or control equipment that will cause the outdoor air to become odorous, beyond the property line of the air contaminant source or control equipment, as measured by the use of a scentometer, odor panel, equivalent instrumentation or methodology used separately or in union therewith, which is:
(1) On or adjacent to residential, recreational, institutional, retail sales, hotel or educational premises when the odorous air has an odor strength equal to or weaker than a No. 8 scale and is detectable for more than two (2) measurements, at intervals of not less than ten (10) minutes, in any one (1) hour period or when the odorous air has an odor strength stronger than a No. 8 scale and is detectable for more than two (2) measurements, at intervals of not less than fifteen (15) minutes, in any eight (8) hour period.
(2) On or adjacent to industrial premises when the odorous air has an odor strength equal to or stronger than a No. 21 scale and is detectable for more than two (2) measurements, at intervals of not less than fifteen (15) minutes, in any eight (8) hour period.
(3) On or adjacent to premises other than those specified in subsections (1) and (2) hereof when the odorous air has an odor strength equal to or stronger than a No. 8 scale and is detectable for more than two (2) measurements, at intervals of not less than fifteen (15) minutes, in any eight (8) hour period.
(b) No. 8 Scale shall mean the dilution of one (1) volume of odorous air with seven (7) volumes of odor free air resulting in a mixture which is below the threshold of odor sensory perception. No. 21 Scale shall mean the dilution of one (1) volume of odorous air with twenty (20) volumes of odor free air resulting in a mixture which is below the odor sensory perception.
(Ord. No. 857-A-76. Passed 6-27-77, eff. 6-30-77)