Questions
1. True or false? For the purposes of on-site hazardous waste management, a container is a 55-gal drum made from steel or plastic.
2. True or false? Containers holding ignitable or reactive wastes must be located inside an enclosure.
3. Inspections to detect leaking or deteriorated containers must be performed at least
(a) daily
(b) weekly
(c) monthly
4. True or false? A minimum distance of 25 feet must separate containers holding incompatible hazardous wastes.
5. A container or container liner is considered “RCRA empty” of hazardous waste when
(a) all material that can be is removed from the container or liner
(b) no more than 1 centimeter of material remains in the container or liner
(c) no more than 2.5 centimeters (1 inch) of material remains in the container
Need copy for Hazardous Waste Container Management Guidebook 17001500
6. A container with a capacity of less than or equal to 119 gallons will be considered “RCRA empty” of hazardous waste if what percentage of by weight of its total capacity is left inside?
(a) 0.3 percent
(b) 1.0 percent
(c) 3 percent
7. A container with a capacity of more than 119 gallons will be considered “RCRA empty” of hazardous waste if what percentage by weight of its total capacity is left inside?
(a) 0.3 percent
(b) 1.0 percent
(c) 3 percent
8. True or False? Residues remaining in a RCRA empty container are exempt from Subtitle C regulations.
9. True or False? A container that has held a hazardous waste that is a compressed gas is empty when the pressure in container approaches atmospheric.
10. A container that has held an acute hazardous waste (40 CFR 261.31, 40 CFR 261.32, or 40 CFR 261.33(e)) is considered empty when:
(a) no more than 1 centimeter of material remains in the container or liner
(b) no more than 0.3 percent of the container’s weight by capacity remains in the container
(c) the container has been double-rinsed with a solvent
(d) the container has been triple-rinsed with a solvent
11. True or False? The rinsate from cleaning out a container with acutely hazardous waste is considered a hazardous waste and may be disposed of according to the hazardous waste limits and rules.
Need copy for Hazardous Waste Container Management Guidebook 17001500
How’d You Do??
A score of 80% or more shows you have a solid understanding of federal requirements and only need to brush up on details. A score of 60% to 80% suggests you need to carefully review several parts of the requirements. A score under 60% suggests your knowledge may be seriously deficient and immediate and careful study is required!
The answers give the CFR citations where appropriate.
1. False. 40 CFR 260.10 defines a container as any portable device in which a material is stored, transported, treated, disposed of, or otherwise handled. In addition to a 55-gal drum, a container may be a tanker truck, a railroad car, a small bucket, or a test tube.
2. False. The only location requirement for containers holding ignitable or reactive wastes is that they be at least 15 meters (50 feet) inside the facility’s property line. 40 CFR 264/265.176
3. (b) weekly. 40 CFR 264/265.174
4. False. Containers holding wastes incompatible with wastes stored in other containers, open tanks, surface impoundments, or piles must be separated by a dike, berm, wall, or other device. 40 CFR 264/265.177(c)
5. (a) and (c). (a) All wastes must be removed that can be removed using the practices commonly employed to remove materials from the type of container (e.g., pouring, pumping, and aspirating) and (c) no more than 2.5 centimeters (one inch) of residue may remain in the container. 40 CFR 261.7(b)(1)(i) to (iii)
6. (c) 3 percent. 40 CFR 261.7(b)(1)(iii)(A). However, the standard described in Question 5(a) (removing all wastes that can be removed) must also be met.
7. (a) 0.3 percent. 40 CFR 261.7(b)(1)(iii)(B). However, the standard described in Question 5(a) (removing all wastes that can be removed) must also be met
8. True.
9. True. 40 CFR 261.7(b)(2)
10. (d) the container has been triple-rinsed with a solvent capable of removing the hazardous waste. 40 CFR 261.7(b)(3)(i)
11. False. The rinsate is considered acutely hazardous waste according to the mixture rule.
Did you get the RCRA-empty questions right? Most people don’t, so see tomorrow’s Advisor for more information on managing RCRA-empty containers.
Question 11. I didn’t understand the question. Was the question properly worded? The rinsate indeed is considered a hazardous waste. Should the answer be ‘true’?
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