CHMM - Certified Hazardous Materials Manager Disposition of Hazardous Materials Questions and Answers

Question 1

What is the primary purpose of the EPA's Land Disposal Restrictions (LDR) program under the Resource Conservation and Recovery Act (RCRA)?

Accepted Answer

To require that hazardous wastes be treated to reduce the toxicity or mobility of hazardous constituents before land disposal.

Answer

The primary goal of the LDR program, found in 40 CFR Part 268, is to protect human health and the environment by minimizing threats from land disposal of hazardous waste. It achieves this by requiring wastes to meet specific treatment standards to either reduce the toxicity of hazardous constituents or reduce their potential to leach from the land disposal unit into groundwater.

Question 2

A facilities manager at a large office complex is consolidating items for proper disposition. Which of the following items generated at the facility can be managed under the less stringent Universal Waste regulations (40 CFR Part 273)?

Accepted Answer

Used fluorescent light bulbs containing mercury.

Answer

The EPA's Universal Waste regulations streamline management for certain common hazardous wastes. The five federal categories of universal waste are batteries, pesticides, mercury-containing equipment, lamps, and aerosol cans. Used fluorescent bulbs fall under the "lamps" category. Asbestos, spent solvents (typically a listed hazardous waste), and unused characteristic hazardous wastes must be managed under full RCRA Subtitle C regulations.

Question 3

A Large Quantity Generator (LQG) ships a hazardous waste load to a permitted TSDF on March 1st. By April 15th, the generator has still not received a signed copy of the manifest from the TSDF. According to 40 CFR 262.42, what is the generator's required action at this point?

Accepted Answer

Contact the transporter and/or the designated TSDF to determine the status of the shipment.

Answer

According to 40 CFR 262.42(a)(1), if an LQG does not receive a signed copy of the manifest from the TSDF within 35 days of acceptance by the initial transporter, the generator must contact the transporter and/or the TSDF to determine the waste's status. Since more than 35 days (but less than 45 days) have passed, this is the required action. Filing an Exception Report is the next step, required only if a signed copy is still not received within 45 days.

Question 4

A maintenance worker at a vehicle repair shop accidentally mixes a small amount of a listed F002 spent solvent (a hazardous waste) into a 55-gallon drum of used oil. What is the regulatory status of the entire contents of the drum?

Accepted Answer

The entire mixture is now subject to regulation as a hazardous waste.

Answer

Under the used oil management standards in 40 CFR Part 279, if used oil is mixed with a hazardous waste that is listed in Subpart D of 40 CFR Part 261 (such as F002), the entire mixture is subject to regulation as a hazardous waste. This is an application of the RCRA "mixture rule" to used oil. The limited exceptions for mixing characteristic wastes do not apply to listed wastes.

Question 5

Which of the following is a key requirement for owners and operators of permitted hazardous waste Treatment, Storage, and Disposal Facilities (TSDFs) under RCRA Subtitle C?

Accepted Answer

Providing financial assurance for the costs of closure and post-closure care of the facility.

Answer

RCRA regulations in 40 CFR Part 264, Subpart H require TSDF owners and operators to demonstrate they have the financial resources to properly close their facility and provide any necessary post-closure monitoring and care. This financial assurance is a cornerstone of the TSDF permitting process and ensures that taxpayers will not have to fund the cleanup if the owner abandons the site or goes bankrupt.

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Practice Test

CHMM - Certified Hazardous Materials Manager Disposition of Hazardous Materials Questions and Answers