LASSEN COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 4:12 - SEPARATION OF EMISSIONS

If air contaminants from a single source operation are emitted through two or more emission points, the total emitted quantity of air contaminant, limited in this Regulation, 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 established the correct total emitted quantity.