Stormwater Environmental Stewardship
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1.Which of the following best describes the primary purpose of a
stormwater management program?
A. To increase runoff into nearby streams
B. To protect water quality, reduce flooding, and manage stormwater
runoff
C. To eliminate all vegetation from developed areas
D. To direct untreated runoff into sanitary sewers
Rationale: Stormwater management programs are designed to reduce
flooding, protect water quality, prevent erosion, and minimize pollution
carried by stormwater into receiving waters.
2. Stormwater runoff becomes polluted primarily because it:
A. Is naturally contaminated before rainfall
B. Dissolves only naturally occurring minerals
C. Picks up pollutants as it flows over land surfaces
D. Is treated before entering waterways
,Rationale: As stormwater flows across roads, parking lots, rooftops, and
landscaped areas, it collects pollutants such as oil, sediment, fertilizers,
pesticides, litter, and heavy metals.
3. Which pollutant is most commonly associated with construction site
runoff?
A. Chlorine
B. Mercury
C. Sediment
D. Ozone
Rationale: Sediment is the leading pollutant from construction activities
because disturbed soil is easily transported by stormwater into nearby
water bodies.
4. Which practice is considered a structural Best Management Practice
(BMP)?
A. Employee training
B. Street sweeping schedule
C. Public education campaign
D. Detention basin
Rationale: Structural BMPs are engineered features such as detention
basins, infiltration trenches, and bioswales that physically control
stormwater runoff.
5. Which activity most effectively prevents stormwater pollution?
A. Cleaning pollutants after they enter waterways
B. Diluting polluted runoff
C. Preventing pollutants from contacting stormwater
D. Increasing runoff velocity
Rationale: Pollution prevention focuses on stopping contaminants from
being exposed to rainfall and runoff before they reach drainage systems.
, 6. Illicit discharges are best defined as:
A. Permitted industrial wastewater discharges
B. Drinking water distribution leaks
C. Any discharge into a storm drain system that is not composed entirely of
stormwater, except authorized discharges
D. Natural groundwater seepage
Rationale: Illicit discharges include unauthorized releases such as sewage,
wash water, oils, and chemicals into municipal storm sewer systems.
7. Which of the following should never be disposed of into a storm
drain?
A. Rainwater
B. Snowmelt
C. Motor oil
D. Natural runoff
Rationale: Motor oil contains harmful hydrocarbons and heavy metals that
contaminate waterways and harm aquatic life.
8. Green infrastructure primarily works by:
A. Speeding runoff into rivers
B. Eliminating rainfall
C. Capturing, infiltrating, or reusing stormwater near where it falls
D. Pumping runoff into sanitary sewers
Rationale: Green infrastructure mimics natural hydrology by allowing
stormwater to infiltrate, evaporate, or be reused instead of becoming
polluted runoff.
9. Which surface generates the greatest amount of stormwater runoff?
A. Forest soil
B. Grass field
Exam Practice Questions And Correct
Answers (Verified Answers) Plus
Rationale 2026 Q&A| Instant Download
1.Which of the following best describes the primary purpose of a
stormwater management program?
A. To increase runoff into nearby streams
B. To protect water quality, reduce flooding, and manage stormwater
runoff
C. To eliminate all vegetation from developed areas
D. To direct untreated runoff into sanitary sewers
Rationale: Stormwater management programs are designed to reduce
flooding, protect water quality, prevent erosion, and minimize pollution
carried by stormwater into receiving waters.
2. Stormwater runoff becomes polluted primarily because it:
A. Is naturally contaminated before rainfall
B. Dissolves only naturally occurring minerals
C. Picks up pollutants as it flows over land surfaces
D. Is treated before entering waterways
,Rationale: As stormwater flows across roads, parking lots, rooftops, and
landscaped areas, it collects pollutants such as oil, sediment, fertilizers,
pesticides, litter, and heavy metals.
3. Which pollutant is most commonly associated with construction site
runoff?
A. Chlorine
B. Mercury
C. Sediment
D. Ozone
Rationale: Sediment is the leading pollutant from construction activities
because disturbed soil is easily transported by stormwater into nearby
water bodies.
4. Which practice is considered a structural Best Management Practice
(BMP)?
A. Employee training
B. Street sweeping schedule
C. Public education campaign
D. Detention basin
Rationale: Structural BMPs are engineered features such as detention
basins, infiltration trenches, and bioswales that physically control
stormwater runoff.
5. Which activity most effectively prevents stormwater pollution?
A. Cleaning pollutants after they enter waterways
B. Diluting polluted runoff
C. Preventing pollutants from contacting stormwater
D. Increasing runoff velocity
Rationale: Pollution prevention focuses on stopping contaminants from
being exposed to rainfall and runoff before they reach drainage systems.
, 6. Illicit discharges are best defined as:
A. Permitted industrial wastewater discharges
B. Drinking water distribution leaks
C. Any discharge into a storm drain system that is not composed entirely of
stormwater, except authorized discharges
D. Natural groundwater seepage
Rationale: Illicit discharges include unauthorized releases such as sewage,
wash water, oils, and chemicals into municipal storm sewer systems.
7. Which of the following should never be disposed of into a storm
drain?
A. Rainwater
B. Snowmelt
C. Motor oil
D. Natural runoff
Rationale: Motor oil contains harmful hydrocarbons and heavy metals that
contaminate waterways and harm aquatic life.
8. Green infrastructure primarily works by:
A. Speeding runoff into rivers
B. Eliminating rainfall
C. Capturing, infiltrating, or reusing stormwater near where it falls
D. Pumping runoff into sanitary sewers
Rationale: Green infrastructure mimics natural hydrology by allowing
stormwater to infiltrate, evaporate, or be reused instead of becoming
polluted runoff.
9. Which surface generates the greatest amount of stormwater runoff?
A. Forest soil
B. Grass field
