1. The 1970's law that set into place the regulation of stormwater is:
Answer: The Clean Water Act
Explanation: The Clean Water Act (CWA), originally enacted in 1972, is the primary federal
law governing water pollution, including regulations that control stormwater discharges.
2. Requirements for managing stormwater activity on a construction site are outlined in the
following regulation:
Answer: NPDES (National Pollutant Discharge Elimination System)
Explanation: The NPDES permit program controls water pollution by regulating point sources
that discharge pollutants into waters of the United States, including stormwater from
construction sites.
3. Which of the following is never an allowable stormwater discharge from a construction
site?
Answer: Discharge from contaminated groundwater
Explanation: Stormwater permits typically regulate runoff but do not allow discharges of
contaminated groundwater, which requires separate treatment and permits.
4. The Notice of Termination can be filed when:
Answer: All construction activity, inside and outside the building, is complete and
permanent stabilization verified
Explanation: The Notice of Termination (NOT) indicates that the construction site has been
stabilized and no further stormwater discharges related to construction activity will occur.
5. Relative to stormwater permitting, all of the following must occur before construction
starts except:
Answer: Submit the notice of termination (NOT)
Explanation: The NOT is submitted after construction is complete, not before. Before starting,
permits must be obtained, but NOT submission is only at the end.
, 6. Which erosion control best management practice increases water infiltration, dissipates
rainfall energy, and slows overland flow of stormwater?
Answer: Vegetation
Explanation: Vegetation stabilizes soil, reduces runoff velocity, and enhances infiltration,
making it a key erosion control measure.
7. Of the following factors that influence erosion rates, the one a contractor has the most
control over is:
Answer: Groundcover
Explanation: Contractors can control groundcover through seeding, mulching, or applying
erosion control blankets to protect soil from erosion.
8. Temporary stabilization should be implemented:
Answer: Immediately on all disturbed areas that are likely to or will remain inactive for
14-days or more
Explanation: Immediate stabilization reduces erosion risk on inactive areas and helps meet
permit requirements.
9. The primary purpose of a construction exit is:
Answer: To remove sediment from construction site vehicles and minimize trackout
Explanation: Construction exits reduce the amount of sediment tracked onto public roads,
preventing pollution and hazards.
10. Common types of erosion include all of the following except:
Answer: Sedimentation
Explanation: Sedimentation is the deposition of eroded soil, not a type of erosion itself.
11. Which of the following is NOT a beneficial use of water?
Answer: Flushing a spill down a storm drain
Explanation: Flushing spills into storm drains contaminates water bodies and is illegal;
beneficial uses promote water quality and safety.
12. When installing and maintaining a check dam make sure:
Answer: The low point (overflow) of the check dam is in the middle of the channel