Oregon Administrative Rules › Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY › Division 234 - EMISSION STANDARDS FOR WOOD PRODUCTS INDUSTRIES › Section 340-234-0510 - Board Products Industries (Veneer, Plywood, Particleboard, Hardboard): Veneer and Plywood Manufacturing Operations

Current through Register Vol. 63, No. 7, July 1, 2024
(1) Veneer Dryers:
(a) Consistent with OAR 340-234-0500(1)
			 through (3), it is the object of this section to control air contaminant
			 emissions, including, but not limited to, condensable hydrocarbons such that
			 visible emissions from each veneer dryer are limited to a level which does not
			 cause a characteristic "blue haze" to be observable;
(b) No person may operate any veneer dryer
			 such that visible air contaminants emitted from any dryer stack or emission
			 point exceed:
(A) A daily average operating
			 opacity of 10 percent on more than two days within any 12-month period, with
			 the days separated from each other by at least 30 days, as measured by EPA
			 Method 9; and
(B) A maximum opacity
			 of 20 percent at any time as measured by EPA Method 9.
(c) Particulate emissions from wood fired
			 veneer dryers may not exceed:
(A) 0.75 pounds
			 per 1,000 square feet of veneer dried (3/8 inch basis) for units using fuel
			 which has a moisture content equal to or less than 20 percent by weight on a
			 wet basis as measured by ASTM D4442-84;
(B) 1.50 pounds per 1,000 square feet of
			 veneer dried (3/8 inch basis) for units using fuel which has a moisture content
			 greater than 20 percent by weight on a wet basis as measured by ASTM D4442-84;
			 or
(C) 0.40 pounds per 1,000 pounds
			 of steam generated in boilers which exhaust gases to the veneer
			 dryer.
(d) Exhaust gases
			 from fuel burning equipment vented to the veneer dryer are exempt from OAR
			 340-228-0210;
(e) Each veneer dryer
			 must be maintained and operated at all times such that air contaminant
			 generating processes and all contaminant control devices must be at full
			 efficiency and effectiveness so that the emission of air contaminants are kept
			 at the lowest practicable levels;
(f) No person may willfully cause or permit
			 the installation or use of any means, such as dilution, which, without
			 resulting in a reduction in the total amount of air contaminants emitted,
			 conceals an emission which would otherwise violate this rule;
(g) Where effective measures are not taken to
			 minimize fugitive emissions, DEQ may require that the equipment or structures
			 in which processing, handling, and storage are done, be tightly closed,
			 modified, or operated in such a way that air contaminants are minimized,
			 controlled, or removed before discharge to the open air;
(h) DEQ may require more restrictive emission
			 limits than provided in subsections (1)(b) and(c) for an individual plant upon
			 a finding by the EQC that the individual plant is located or is proposed to be
			 located in a special problem area. The more restrictive emission limits for
			 special problem areas may be established on the basis of allowable emissions
			 expressed in opacity, pounds per hour, or total maximum daily emissions to the
			 atmosphere, or a combination thereof.