SWPPP STUDY EXAMS GUIDE QUESTIONS AND
ANSWERS SET A+
✔✔The heart of any effective SWPPP: - ✔✔Erosion control, primary means of
preventing stormwater pollution
✔✔Second line of defense: - ✔✔Sediment controls
✔✔Sediment Control Principles: - ✔✔1. Protect storm drain inlets
2. Establish perimeter controls
3. Retain sediment on-site and control dewatering practices
4. Establish stabilized construction exits
5. Inspect and maintain controls
✔✔Erosion Control Principles: - ✔✔1. Minimize disturbed area and protect natural
features and soil
2. Phase construction activity
3. Control stormwater flowing onto and through the project
4. Stabilize soils promptly
5. Protect slopes
✔✔Best and cheapest erosion control: - ✔✔Natural vegetation
✔✔Temporary-cover BMPs include: - ✔✔- Temporary seeding
- Mulches
- Matrices
- Blankets and Mats
- Soil binders
✔✔Final Stabilization percentage: - ✔✔70%
, ✔✔One of the most effective and least expensive methods of reducing erosion: -
✔✔Temporarily seeding an area
✔✔Erosion control products: - ✔✔- mats
- geotextiles
- erosion control blankets
✔✔Use rolled erosion-control products on slopes steeper than: - ✔✔3 to 1
✔✔Storm drain inlet protection should never be used as a: - ✔✔primary BMP
✔✔You should use a sediment basin for common drainage locations that serve an area
with: - ✔✔10 or more acres disturbed at any one time.
The basin should be designed to provide storage for the volume of runoff from the
drainage area for at least a 2 year, 24 hr storm.
✔✔Sediment basins should be located at: - ✔✔Low-lying areas of the site and on the
down-gradient side of bare soil areas where flows converge.
✔✔Stabilized Construction Exit Length: - ✔✔At least 50 feet long
✔✔BMPs - ✔✔Best Management Practices
✔✔BMP Erosion control measures: - ✔✔- Surface roughening, trackwalking, scarifying,
sheepsfoot rolling, imprinting
- Soil bioengineering techniques
- Composting
- Sodding
✔✔6 Key Pollution Prevention Principles for Good Housekeeping - ✔✔1. Provide for
waste management
2. Establish proper building material staging areas
3. Designate paint and concrete washout areas
4. Establish proper equipment/vehicle fueling and maintenance practices
5. Control equipment/vehicle washing and allowable non-stormwater discharges
6. Develop a spill prevention and response plan
✔✔Waste collection areas are best located: - ✔✔Near construction site entrances to
minimize traffic on disturbed soils.
✔✔Washout areas should be located at least: - ✔✔50 yards away from storm drains
and watercourses
✔✔Non-stormwater discharges: - ✔✔- fire hydrant flushing
ANSWERS SET A+
✔✔The heart of any effective SWPPP: - ✔✔Erosion control, primary means of
preventing stormwater pollution
✔✔Second line of defense: - ✔✔Sediment controls
✔✔Sediment Control Principles: - ✔✔1. Protect storm drain inlets
2. Establish perimeter controls
3. Retain sediment on-site and control dewatering practices
4. Establish stabilized construction exits
5. Inspect and maintain controls
✔✔Erosion Control Principles: - ✔✔1. Minimize disturbed area and protect natural
features and soil
2. Phase construction activity
3. Control stormwater flowing onto and through the project
4. Stabilize soils promptly
5. Protect slopes
✔✔Best and cheapest erosion control: - ✔✔Natural vegetation
✔✔Temporary-cover BMPs include: - ✔✔- Temporary seeding
- Mulches
- Matrices
- Blankets and Mats
- Soil binders
✔✔Final Stabilization percentage: - ✔✔70%
, ✔✔One of the most effective and least expensive methods of reducing erosion: -
✔✔Temporarily seeding an area
✔✔Erosion control products: - ✔✔- mats
- geotextiles
- erosion control blankets
✔✔Use rolled erosion-control products on slopes steeper than: - ✔✔3 to 1
✔✔Storm drain inlet protection should never be used as a: - ✔✔primary BMP
✔✔You should use a sediment basin for common drainage locations that serve an area
with: - ✔✔10 or more acres disturbed at any one time.
The basin should be designed to provide storage for the volume of runoff from the
drainage area for at least a 2 year, 24 hr storm.
✔✔Sediment basins should be located at: - ✔✔Low-lying areas of the site and on the
down-gradient side of bare soil areas where flows converge.
✔✔Stabilized Construction Exit Length: - ✔✔At least 50 feet long
✔✔BMPs - ✔✔Best Management Practices
✔✔BMP Erosion control measures: - ✔✔- Surface roughening, trackwalking, scarifying,
sheepsfoot rolling, imprinting
- Soil bioengineering techniques
- Composting
- Sodding
✔✔6 Key Pollution Prevention Principles for Good Housekeeping - ✔✔1. Provide for
waste management
2. Establish proper building material staging areas
3. Designate paint and concrete washout areas
4. Establish proper equipment/vehicle fueling and maintenance practices
5. Control equipment/vehicle washing and allowable non-stormwater discharges
6. Develop a spill prevention and response plan
✔✔Waste collection areas are best located: - ✔✔Near construction site entrances to
minimize traffic on disturbed soils.
✔✔Washout areas should be located at least: - ✔✔50 yards away from storm drains
and watercourses
✔✔Non-stormwater discharges: - ✔✔- fire hydrant flushing
