Subdividers Ordinance

b. Particulate Matter The rate of emission of particulate matter from all sources within the boundaries of any lot must not exceed the rate established in the following Table: c. Maximum Permitted Particulate Matter Emission Rate Height of Emission Pounds Per Hour (Feet) Per Acre 0 through 49 1.00 50 through 99 1.01 100 through 149 1.06 150 through 199 1.10 200 through 299 1.16 300 through 399 1.30 400 and over 1.50 d. Method of Measurement- i. Smoke – To grade the density or equivalent opacity of emission of smoke, the Ringelmann Chart must be used. To determine smoke units, the Ringelmann reading must be made at least every minute during the period of observation. Each reading (Ringelmann number) must be multiplied by the time in minutes that it is observed, and the products added together to determine the total number of smoke units observed during the total period of observation. ii. Particulate Matter - The total net rate of emission of particulate matter within the boundaries of any lot must be determined as follows: Determine the maximum emission in pounds per hour from each source of emission and divide this figure by the number of acres of lot area, thereby obtaining the hourly rate of emission in pounds per acre. Add together the individual rates of emission as derived above to obtain the total rate of emission from all sources of emission within the boundaries of the lot. This total must not exceed the rate established in the preceding Table. 4. Odors Continuous, frequent, or repetitive emission of odors or odor-causing substances that would be offensive beyond any property line of any industrial use are prohibited. An odor emitted no more than 15 minutes in any one day must not be deemed as continuous, frequent, or repetitive within the meaning of these regulations. The existence of an odor is presumed when analysis by a competent technician demonstrates that a discernible odor has been emitted. Any process that may involve the creation or emission of any odors must be provided with a primary and a secondary safeguard system so that control will be maintained if the primary safeguard system fails. 94 Adopted November 14, 2007