§ 15.30.040. Visible stationary source emission standards.

A.

No person shall cause, permit or allow the opacity from the emission of any air contaminant from any stationary source, excluding portions of emissions containing condensed uncombined water vapor, to exceed 20 percent for a period or periods aggregating more than three minutes in any one hour, except:

1.

The opacity of air-contaminant emissions from air curtain burners may exceed 20 percent during the first 20 minutes after initial firing of the unit, and thereafter only must not exceed 20 percent averaged over a period or periods aggregating more than six minutes in any hour; and

2.

The opacity of air-contaminant emissions from wood fired boilers, fireplaces, wood and coal burning stoves and similar solid fuel heating appliances may exceed 20 percent during the first 20 minutes after initial firing of the unit, and thereafter only must not exceed 20 percent averaged over a period or periods aggregating more than six minutes in any hour, except the opacity of emissions from a unit addressed in this subsection may exceed 20 percent at any time if the unit serves as a location's only available source of heat.

B.

The opacity of an air contaminant shall be determined at the point of emission, except when the point of emission cannot be readily observed, in which case it may be determined at an observable point of the plume nearest the point of emission.

C.

This section shall not apply to smoke-generating equipment approved by the director for the training, instruction or certification of persons to observe and determine the opacity of air contaminants, to smoke-generating equipment used by the fire chief for instruction in firefighting, or to smoke-generating equipment when used by a law enforcement agency for instruction or training in incident response, when such equipment is otherwise operated in compliance with applicable federal and state laws.

D.

This section shall not apply to facilities permitted by the Alaska Department of Environmental Conservation (DEC) and/or the Environmental Protection Agency (EPA) for stationary source emissions.

(AO No. 2017-161(S) , § 2, 2-27-18)