Hazardous Waste Management Questions and Answers for Aptitude test on “Landfill Disposal – Closure and Post-closure”.
1. When a hazardous waste management unit stops receiving waste and reaches the end of its active life it must be closed according to RCRA.
a) True
b) False
Answer: a
Clarification: When a hazardous waste management unit stops receiving waste and reaches the end of its active life it must be cleaned up, closed, monitored, and maintained in compliance with RCRA.
2. The requirements for closure and post-closure activities are entitled in CFR _______ and _______
a) 264, 265
b) 265, 266
c) 266, 267
d) 267, 268
Answer: a
Clarification: The requirements for closure and post-closure activities are found in title 40 of the Code of Federal Regulations (CFR) in part 264 or part 265, subpart G Closure and Post-Closure.
3. Part 264 of closure and post-closure rules are applied to _________
a) Industries
b) Facilities
c) Permitted facilities
d) TSDF
Answer: c
Clarification: Part 264 of closure and post-closure rules are applied to permitted facilities under Code of Federal Regulations (CFR).
4. Part 265 of closure and post-closure rules are applied to _________
a) Industries
b) Facilities
c) Permitted facilities
d) Facilities before rules adopted
Answer: d
Clarification: Part 264 of closure and post-closure rules are applied to facilities in operation before these rules became effective and is referred to as interim status facilities.
5. In a multiple HW management facility, ceasing only one unit operation which others remain intact is known as _______ closure.
a) Partial
b) Complete
c) Half
d) Final
Answer: a
Clarification: At TSDFs where multiple HW management units in operation, ceasing only one unit operation while remaining units in operation is known as partial closure.
6. Removing all wastes from the waste management unit and decontaminate or remove all equipment is known as _______ closure.
a) Partial
b) Full
c) Clean
d) Decontaminate
Answer: c
Clarification: Removing all wastes from the waste management unit, decontaminate or remove all equipment, structures, and surrounding soils is known as clean closure.
7. Interim status facilities must have written closure plans within _______ months before closure.
a) 2
b) 4
c) 6
d) 8
Answer: c
Clarification: Interim status facilities should have written closure plans within six months of becoming prior to subject regulations.
8. Facilities with landfills and land treatment units are required to notify the EPA ________ days prior to the date they intend to begin partial or final closure.
a) 20
b) 40
c) 60
d) 80
Answer: c
Clarification: Facilities with landfills, impoundments, land treatment units, and waste piles are subjected to notify the EPA Regional Administrator 60 days prior to the date they intend to begin partial or final closure of landfill.
9. Facilities with tanks and boilers should notify EPA 60 days prior before closure.
a) True
b) False
Answer: b
Clarification: Facilities with containers, tanks, incinerators or boilers and industrial furnaces should notify EPA 45 days prior before closure.
10. After landfill unit receives last shipment of hazardous waste, it has __________ days to commence closure.
a) 10
b) 20
c) 30
d) 40