CDS Waste Management & Recycling 2

Question 1

Which EPA program provides guidance and resources for waste reduction, including deconstruction and material recovery from buildings?

Accepted Answer

EPA WasteWise Program

Answer

OSHA Hazard Communication Standard

Answer

HUD Lead Paint Hazard Control Program

Answer

Army Corps of Engineers Dredging Program

Question 2

Crushed concrete from demolition projects is most commonly reused as which of the following?

Accepted Answer

Granular base material for roads, parking lots, and sub-base layers

Answer

Structural fill directly beneath building footings without testing

Answer

Aggregate in new structural concrete mixes without processing

Answer

Backfill around underground utilities without compaction testing

Question 3

Before demolishing a building, a CDS should conduct a pre-demolition audit primarily to accomplish which goal?

Accepted Answer

Identify and inventory materials that can be salvaged, reused, or recycled

Answer

Estimate the building's original construction cost for insurance purposes

Answer

Determine the number of workers and equipment needed for the project

Answer

Establish the sequence of structural demolition activities

Question 4

Which organization publishes the LEED rating system that awards credits for construction and demolition waste management?

Accepted Answer

U.S. Green Building Council (USGBC)

Answer

OSHA (Occupational Safety and Health Administration)

Answer

National Demolition Association (NDA)

Answer

U.S. Environmental Protection Agency (EPA)

Question 5

What documentation must a demolition contractor maintain to verify recycled C&D materials were properly diverted from landfill?

Accepted Answer

Weight tickets or receipts from recycling facilities showing material type and quantity

Answer

Only weight tickets from landfill tipping fee receipts

Answer

Photographs of workers sorting materials on site

Answer

Insurance certificates from debris hauling subcontractors

Question 6

Asphalt pavement removed during site demolition and preparation is best managed by which method?

Accepted Answer

Stockpiling for reuse as base material or recycling at an asphalt plant

Answer

Disposing in a C&D landfill since it cannot be economically recycled

Answer

Burning on site to reduce the volume requiring disposal

Answer

Mixing with concrete rubble in a commingled C&D debris pile

Question 7

What is the primary environmental concern with disposing of untreated wood from demolition in a landfill?

Accepted Answer

It produces methane gas as it decomposes under anaerobic landfill conditions

Answer

It generates carbon monoxide gas during decomposition

Answer

It leaches heavy metals into groundwater over time

Answer

It creates a spontaneous combustion risk in the landfill