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PDFWAC 173-303-161

Overpacked containers (labpacks).

Small containers of dangerous waste may be placed in overpacked drums (or labpacks) provided that the following conditions are met:
(1) Dangerous waste must be packaged in nonleaking inside containers. The inside containers must be of a design and constructed of a material that will not react dangerously with, be decomposed by, or be ignited by the contained waste. Inside containers must be tightly and securely sealed and, to the extent possible, should be full and have as little air as possible in them to minimize voids. The inside containers must be of the size and type specified in the Department of Transportation (DOT) hazardous materials regulations (49 C.F.R. Parts 173, 178, and 179), if those regulations specify a particular inside container for the waste;
(2) The inside containers must be overpacked in an open head DOT-specification drum shipping container which meets all of the requirements of 49 C.F.R. Parts 173, 178, and 179. The overpack container must not exceed a capacity of 416-liter (110 gallon). The overpack container must have a sufficient quantity of sorbent material to completely sorb all of the liquid contents of the inside containers. The sorbent in overpack containers to be placed in a landfill must be nonbiodegradable in accordance with WAC 173-303-140 (4)(b)(iv). The outer container must be full after it has been packed with inside containers and sorbent material;
(3) The sorbent material used must not be capable of reacting dangerously with, being decomposed by, or being ignited by the contents of the inside containers, in accordance with WAC 173-303-395 (1)(b);
(4) Incompatible wastes, as defined in WAC 173-303-040, must not be placed in the same outside container; and
(5) Reactive wastes, other than cyanide- or sulfide-bearing waste as defined in WAC 173-303-090 (7)(a)(v), must be treated or rendered nonreactive prior to packaging in accordance with subsections (1) through (4) of this section. Cyanide- and sulfide-bearing reactive waste may be packed in accordance with subsections (1) through (4) of this section without first being treated or rendered nonreactive.
(6) An itemized listing of the chemicals, their concentrations and quantities per labpack must be kept by the generator for five years and must be readily available in case of an emergency during shipment, and for the purposes of preparing annual reports under WAC 173-303-220.
(7) Such disposal is in compliance with the requirements of WAC 173-303-140 (2)(a). Persons who incinerate labpacks according to the requirements in 40 C.F.R. 268.42(c)(1) (incorporated by reference at WAC 173-303-140 (2)(a)) may use fiber drums in place of metal outer containers. Such fiber drums must meet the DOT specifications in 49 C.F.R. 173.12 and be overpacked according to the requirements in subsection (2) of this section.
[Statutory Authority: Chapters 70.105, 70.105D, and 15.54 RCW and RCW 70.105.007. WSR 04-24-065 (Order 03-10), § 173-303-161, filed 11/30/04, effective 1/1/05. Statutory Authority: Chapters 70.105 and 70.105D RCW. WSR 95-22-008 (Order 94-30), § 173-303-161, filed 10/19/95, effective 11/19/95; WSR 94-01-060 (Order 92-33), § 173-303-161, filed 12/8/93, effective 1/8/94. Statutory Authority: Chapter 70.105 RCW. WSR 89-02-059 (Order 88-24), § 173-303-161, filed 1/4/89; WSR 86-12-057 (Order DE-85-10), § 173-303-161, filed 6/3/86; WSR 84-09-088 (Order DE 83-36), § 173-303-161, filed 4/18/84.]
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