CDS Waste Management & Recycling 3

Question 1

Which building material installed before 1979 requires testing for PCB contamination before demolition waste disposal?

Accepted Answer

Caulking compounds and joint sealants

Answer

Brick masonry and clay tile

Answer

Structural steel members and beams

Answer

Poured concrete foundations

Question 2

When tracking C&D waste for LEED certification, which metric is most critical to document and report?

Accepted Answer

Percentage of total C&D waste by weight diverted from landfill

Answer

Total number of dumpsters deployed on the project

Answer

Total project budget allocated to waste disposal costs

Answer

Number of recycling facilities contacted during the project

Question 3

How is steel scrap from demolition projects typically handled to maximize value recovery?

Accepted Answer

Selling to metal recyclers or scrap dealers at current commodity market prices

Answer

Disposing in dedicated metal-only landfill sections only

Answer

Grinding into fine particles before landfill disposal to reduce volume

Answer

Storing indefinitely on site until commodity prices peak

Question 4

Under which federal regulation must a demolition contractor notify the state environmental agency at least 10 working days before demolishing a structure with friable asbestos-containing materials?

Accepted Answer

NESHAP 40 CFR Part 61 Subpart M for asbestos

Answer

RCRA Section 3010 notification requirements

Answer

OSHA 29 CFR 1926.1101 asbestos construction standard

Answer

Clean Water Act Section 404 permit program

Question 5

Which of the following best describes 'deconstruction' as distinguished from standard mechanical demolition?

Accepted Answer

Carefully dismantling a structure to maximize recovery of reusable and recyclable materials

Answer

Using controlled implosion to collapse a building rapidly with minimal labor

Answer

Demolishing only the interior components while preserving the exterior building envelope

Answer

Removing all MEP systems before beginning any structural demolition work

Question 6

What is the purpose of the EPA hazardous waste manifest system (Form 8700-22) in demolition projects?

Accepted Answer

A tracking document following hazardous waste from generation through final disposal

Answer

A list of all workers certified to handle hazardous materials on site

Answer

A permit required from the EPA before demolition activities may begin

Answer

An inventory of all personal protective equipment used during hazardous material removal

Question 7

What is the best waste management strategy when demolishing a building that contains both hazardous and non-hazardous materials?

Accepted Answer

Segregate hazardous materials from non-hazardous debris throughout the demolition process

Answer

Mix all materials together to dilute hazardous content below regulatory thresholds

Answer

Dispose of all project materials as hazardous waste to ensure blanket regulatory compliance

Answer

Remove only visibly contaminated materials and commingle the remainder for disposal