CHMM - Certified Hazardous Materials Manager Hazardous Materials Storage Questions and Answers

Question 1

A facility has a designated hazardous waste storage area containing several 55-gallon drums of various liquid hazardous wastes.
To comply with EPA's secondary containment requirements under 40 CFR 264.175, what is the minimum required capacity for the containment system?

Accepted Answer

Sufficient capacity to contain 10% of the volume of all containers or 100% of the volume of the largest container, whichever is greater.

Answer

10% of the total volume of all containers.

Answer

100% of the volume of the smallest container or 10% of the total volume, whichever is smaller.

Answer

Exactly 110% of the volume of the largest container.

Question 2

A chemical manufacturing plant needs to store a new, highly flammable liquid (OSHA Category 1). According to OSHA standard 29 CFR 1910.106, what is the maximum quantity of this liquid that can be stored in a single approved flammable storage cabinet?

Accepted Answer

60 gallons

Answer

25 gallons

Answer

120 gallons

Answer

30 gallons

Question 3

A laboratory manager is setting up a new Satellite Accumulation Area (SAA) for hazardous waste generated from an analytical process. Which of the following is a key requirement for an SAA under EPA's RCRA regulations (40 CFR 262.15)?

Accepted Answer

The SAA must be at or near the point of generation and under the control of the process operator.

Answer

A formal weekly inspection log must be maintained for the SAA.

Answer

The containers must be marked with the exact date accumulation began.

Answer

The SAA can accumulate up to 100 gallons of non-acute hazardous waste.

Question 4

A hazardous materials manager is reviewing the storage of incompatible chemicals. A container of a strong oxidizing agent must be segregated from a container of a flammable organic solvent. According to best practices and common fire codes, what is a primary method for ensuring safe separation?

Accepted Answer

Ensuring a minimum separation distance of at least 20 feet or using a separate, approved storage cabinet.

Answer

Storing them on the same shelf but with a non-combustible barrier in between.

Answer

Placing them in the same flammable storage cabinet but on different shelves.

Answer

Storing them in the same room as long as both containers are properly sealed.

Question 5

During a facility audit, you observe several 55-gallon drums of hazardous waste stored outside on a paved area. The drums are properly labeled and closed. To be in compliance with EPA regulations regarding outdoor storage, which of the following is most critical?

Accepted Answer

The drums must be elevated on pallets and protected from contact with accumulated precipitation.

Answer

The area must be shaded to prevent the drums from overheating.

Answer

The area must be at least 50 feet away from any building.

Answer

The drums must be inspected on an hourly basis.

Question 6

Which of the following scenarios describes a compliant practice for storing flammable liquid containers inside a building but outside of a designated storage room or cabinet?

Accepted Answer

Keeping up to 25 gallons of flammable liquids in approved containers for maintenance tasks.

Answer

Storing up to 50 gallons of Category 1 flammable liquids in an open production area.

Answer

Stacking 30-gallon containers three-high to conserve space.

Answer

Placing a 5-gallon safety can of gasoline near a stairwell for easy access.