KERN COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 113 - SEPARATION AND COMBINATION
(Adopted 1972-75, Amended 5/2/96)
I. Multiple Emission Points
If air contaminants from a single source operation are emitted through two or more emission points, the total emitted quantity of any air contaminant, limited in these Regulations cannot exceed the quantity which would be the allowable emission through a single emission point; and the total emitted quantity of any such air contaminant shall be taken as the product of the highest concentration measured in any of the emission points and the exhaust gas volume through all emission points, unless the person responsible for the source operation establishes the correct total emitted quantity.
II. Combination (Subject to Separation)
If air contaminants from two or more source operations are combined prior to emission and there are adequate and reliable means reasonably susceptible to confirmation and use by the control officer for establishing a separation of the components of the combined emission to indicate the nature, extent, quantity and degree of emission arising from each such source operation, these Regulations shall apply to each such source operation separately.
III. Combination (Not Subject to Separation)
If air contaminants from two or more source operations are combined prior to emission, and the combined emission cannot be separated according to the requirements of Rule 113 II., these Regulations shall be applied to the combined emission as if it originated in a single source operation subject to the most stringent limitations and requirements placed by these Regulations on any of the source operations whose air contaminants are so combined.