Free Environmental Compliance Inspector Hazardous Waste Management Questions and Answers — Questions and Answers
Question 1: A Large Quantity Generator (LQG) accumulates hazardous waste in a satellite accumulation area (SAA). The container of non-acute hazardous waste becomes full, reaching the 55-gallon limit. According to 40 CFR 262.15, what is the maximum time allowed for the generator to move this full container to the central accumulation area?
- Within 24 hours of being filled.
- Within 3 consecutive calendar days of being filled. (Correct answer)
- Within 7 business days of being filled.
- Within 90 days of the accumulation start date.
Correct answer: Within 3 consecutive calendar days of being filled.
According to RCRA regulations at 40 CFR 262.15(a)(6), once a satellite accumulation container is full (i.e., reaches the 55-gallon limit for non-acute waste), the generator must mark it with the date it becomes full. The container must then be moved to the central accumulation area (e.g., a 90-day area for an LQG) within three consecutive calendar days.
Question 2: An inspector is reviewing a facility's hazardous waste program and notes that several types of waste are being managed under the Universal Waste Rule (40 CFR Part 273). Which of the following items is NOT federally regulated as a universal waste?
- Spent lead-acid batteries being sent for reclamation. (Correct answer)
- Unused pesticides that are part of a voluntary recall.
- Fluorescent light bulbs.
- Mercury-containing thermostats.
Correct answer: Spent lead-acid batteries being sent for reclamation.
While batteries are a category of universal waste, spent lead-acid batteries that are being reclaimed are managed under a different set of regulations, specifically 40 CFR Part 266, Subpart G. The other items—recalled pesticides, lamps, and mercury-containing equipment—are all specifically identified as categories of universal waste under the federal rules in 40 CFR Part 273.
Question 3: The Land Disposal Restrictions (LDR) program, found in 40 CFR Part 268, establishes three key prohibitions. Which of the following is one of these fundamental prohibitions?
- The generation prohibition, which limits the monthly volume of certain wastes.
- The transportation prohibition, which requires specific vehicle types for LDR wastes.
- The dilution prohibition, which prevents adding soil or water to meet a treatment standard. (Correct answer)
- The export prohibition, which forbids sending untreated waste to other countries.
Correct answer: The dilution prohibition, which prevents adding soil or water to meet a treatment standard.
The LDR program is built on three core prohibitions: the disposal prohibition (untreated waste cannot be land disposed), the storage prohibition (waste cannot be stored indefinitely to avoid treatment), and the dilution prohibition. The dilution prohibition (40 CFR 268.3) specifically forbids diluting hazardous waste as a substitute for adequate treatment.
Question 4: A Small Quantity Generator (SQG) has not received a signed copy of the hazardous waste manifest from the designated Treatment, Storage, and Disposal Facility (TSDF) within the expected timeframe. What is the generator's responsibility under RCRA?
- Immediately notify the EPA National Response Center.
- File a Biennial Report detailing the missing manifest.
- No action is required as the transporter is solely responsible.
- Contact the transporter and/or the TSDF to determine the waste's status. (Correct answer)
Correct answer: Contact the transporter and/or the TSDF to determine the waste's status.
Under 40 CFR 262.42(a), if a Small Quantity Generator (SQG) does not receive a signed copy of the manifest from the TSDF within 60 days of the date the waste was accepted by the initial transporter, the SQG must submit a legible copy of the manifest and a letter explaining the efforts taken to locate the shipment. The first step in this process is to contact the transporter and the TSDF to investigate the status. A Large Quantity Generator (LQG) has a shorter timeframe of 45 days to take this action.
Question 5: A facility mixes used oil with a small amount of a solvent that is a characteristic hazardous waste for ignitability (D001) only. The resulting mixture is no longer ignitable. How must this mixture be managed?
- As a listed hazardous waste under the 'mixture rule'.
- As used oil, provided it is destined for recycling. (Correct answer)
- As a solid waste subject to Subtitle D regulations.
- It must be treated to meet LDR standards before any management.
Correct answer: As used oil, provided it is destined for recycling.
According to 40 CFR 279.10(b)(2)(iii), a mixture of used oil and a hazardous waste that is listed solely for the characteristic of ignitability (D001) can be managed as used oil, provided the resulting mixture is not ignitable. This is an important exception to the general rule that mixing used oil with hazardous waste makes the entire volume a hazardous waste. The regulations for used oil are generally less stringent than for hazardous waste.
Question 6: Under RCRA, what are the minimum personnel training requirements for a Small Quantity Generator (SQG) of hazardous waste?
- Personnel must complete a 40-hour HAZWOPER course.
- The facility must have a written training plan and maintain training records for three years.
- There are no federal training requirements for SQGs.
- Employees must be 'thoroughly familiar' with waste handling and emergency procedures relevant to their duties. (Correct answer)
Correct answer: Employees must be 'thoroughly familiar' with waste handling and emergency procedures relevant to their duties.
The federal RCRA training requirement for SQGs, found at 40 CFR 262.16(b)(9)(iii), is performance-based. It requires the generator to ensure that all employees are 'thoroughly familiar' with proper waste handling and emergency procedures relevant to their responsibilities during normal operations and emergencies. Unlike for Large Quantity Generators, formal classroom training or detailed recordkeeping is not explicitly required by federal regulation, although it is considered a best practice.
Free Environmental Compliance Inspector Hazardous Waste Management Questions and Answers
A Large Quantity Generator (LQG) accumulates hazardous waste in a satellite accumulation area (SAA).
The container of non-acute hazardous waste becomes full, reaching the 55-gallon limit.
According to 40 CFR 262.15, what is the maximum time allowed for the generator to move this full container to the central accumulation area?