CTE Environmental Impact & Sustainability 1 — Questions and Answers
Question 1: Under NEPA, what document is required for federal transportation actions that significantly affect the human environment?
- Categorical Exclusion (CE)
- Environmental Assessment (EA)
- Environmental Impact Statement (EIS) (Correct answer)
- Finding of No Significant Impact (FONSI)
Correct answer: Environmental Impact Statement (EIS)
An Environmental Impact Statement (EIS) is required by NEPA for federal actions with significant environmental effects, providing a full analysis of alternatives and impacts.
Question 2: What is the purpose of Section 4(f) of the Department of Transportation Act in transportation project planning?
- Requires air quality conformity determination for federally funded projects
- Protects publicly owned parks, wildlife refuges, and historic sites from transportation project use (Correct answer)
- Mandates stormwater management for highway construction
- Establishes noise standards for highway projects
Correct answer: Protects publicly owned parks, wildlife refuges, and historic sites from transportation project use
Section 4(f) prohibits USDOT from approving projects that use land from significant publicly owned parks, recreation areas, wildlife refuges, or historic sites unless there is no feasible and prudent alternative.
Question 3: Which Clean Air Act provision requires transportation plans and programs in nonattainment areas to conform to the State Implementation Plan (SIP)?
- Mobile Source Air Toxics (MSAT) Rule
- Transportation Conformity (Correct answer)
- New Source Review (NSR)
- National Ambient Air Quality Standards (NAAQS)
Correct answer: Transportation Conformity
Transportation Conformity ensures that federally funded transportation plans, programs, and projects in nonattainment/maintenance areas do not worsen air quality or impede SIP attainment.
Question 4: What is the primary purpose of a Stormwater Pollution Prevention Plan (SWPPP) for highway construction projects?
- To design permanent detention basins for the completed highway
- To document best management practices that minimize sediment and pollutant discharge during construction (Correct answer)
- To calculate 100-year floodplain impacts
- To satisfy Section 404 wetland permit requirements
Correct answer: To document best management practices that minimize sediment and pollutant discharge during construction
A SWPPP identifies erosion control BMPs, inspection schedules, and responsible parties to prevent stormwater runoff from carrying sediment and pollutants to waterways during construction.
Question 5: Under Section 404 of the Clean Water Act, which agency issues permits for discharge of dredged or fill material into Waters of the US?
- Environmental Protection Agency (EPA)
- Army Corps of Engineers (USACE) (Correct answer)
- Fish and Wildlife Service (USFWS)
- FHWA
Correct answer: Army Corps of Engineers (USACE)
The US Army Corps of Engineers administers the Section 404 permit program, which regulates the placement of dredged or fill material into jurisdictional waters, including wetlands.
Question 6: What does 'mitigation sequencing' require in the context of wetland impacts from highway projects?
- Selecting the least expensive mitigation option first
- Avoiding impacts first, then minimizing, then compensating for unavoidable impacts (Correct answer)
- Compensating for wetland losses before project construction begins
- Mitigating impacts in the order they occur during construction
Correct answer: Avoiding impacts first, then minimizing, then compensating for unavoidable impacts
The EPA/USACE mitigation rule requires applicants to first avoid wetland impacts, then minimize unavoidable impacts, and finally provide compensatory mitigation for residual losses.
CTE Environmental Impact & Sustainability 1
Under NEPA, what document is required for federal transportation actions that significantly affect the human environment?