ETC Environmental Engineering & Sustainability Flashcards

What is the purpose of a retention pond in site stormwater management?

Answer: To permanently store runoff, allowing settling of pollutants and reducing peak flows

A retention pond holds a permanent pool of water that receives runoff, allowing sediment and pollutants to settle before the water slowly releases.

What does a Phase I Environmental Site Assessment primarily investigate?

Answer: Recognized environmental conditions such as past spills, tanks, or contamination

A Phase I ESA reviews historical records, regulatory databases, and site conditions to identify potential contamination without intrusive sampling.

What does LEED certification evaluate in building construction?

Answer: Sustainable building performance in energy, water, materials, and site design

LEED is a green building rating system by the USGBC that evaluates energy efficiency, water use, materials, indoor environment, and site sustainability.

What is the Clean Water Act Section 404 permit required for?

Answer: Discharging dredged or fill material into waters of the US, including wetlands

Section 404 requires a permit from the Army Corps of Engineers before placing dredged or fill material into navigable waters or wetlands.

What does remediation mean in environmental engineering?

Answer: The cleanup or treatment of contaminated soil, groundwater, or structures

Environmental remediation encompasses methods such as excavation, in-situ treatment, and pump-and-treat systems used to restore contaminated sites to acceptable conditions.

What is the purpose of a construction dust control plan for air quality?

Answer: To minimize particulate matter emissions from grading and material handling activities

A dust control plan identifies BMPs such as water spraying, vegetation stabilization, and equipment covers to reduce particulate matter from construction operations.