CISEC Exam
Stormwater control design goal ANSWER>>>Minimize the discharge of pollutants in
stormwater.
SW control design factors ANSWER>>>Expected
amount and frequency of
precipitation, soil type and range, flow from impervious surfaces,
slopes, and BMPs to control flow rates.
Erosion and sediment control requirements ANSWER>>>Provide
and maintain natural
buffers and/or equivalent erosion and sediment controls for discharges
to any receiving waters located within 50 feet of the site's earth
disturbances.
Directing stormwater ANSWER>>>Towards
vegetated areas, maximize infiltration
and filtering to minimize pollutant discharges unless unadvisable due
to geological factors (GW contamination, karst geography, etc.)
Installing perimeter controls ANSWER>>>Must
be installed upgradient of any
natural buffers, extend on the contour of a slope with ends curved
upwards.
Maintaining perimeter controls ANSWER>>>Remove
sediment before it has
accumulated to 1/2 the height of the control, and if it is ineffective
following a precipitation event: extend or repair controls.
Minimizing sediment track-out ANSWER>>>Restricting
vehicle use to designated
points and installing tracking controls like wheel washing, rumble
plates, and 3-inch gravel.
, CISEC Exam
Managing stockpiles ANSWER>>>Away
from inlets or concentrated flow areas,
install a sediment barrier along downgradient areas, and if unused for
14+ days provide cover.
Minimizing dust ANSWER>>>On areas of exposed soil, apply water or other
suppression techniques.
Soil health factors ANSWER>>>Minimize
steep slope disturbances, preserve
native topsoil unless infeasible, and minimize soil compaction.
Inlet protection ANSWER>>>Install
protection measures that remove sediment
from discharges prior to entry (not required for sites with a sediment
trap system); and clean or replace protections as sediment
accumulates.
Chemical use and storage ANSWER>>>Must
be appropriately suited for soil type
and treated discharges. Must be stored in leak-proof containers under
storm-resistant covers and surrounded by secondary containment.
Exposed soil ANSWER>>>Must be stabilized and resistant to erosion.
Timeline:
5 acres or less--begin stabilizing where activity stops permanently or for more than 14 days immediately,
no more than 14 days.
More than 5 acres--begin stabilizing where activity stops permanently or for more than 14 days
immediately, no more than 7 days.
Turbidity monitoring--dewatering ANSWER>>>Must collect a sample from dewatering discharge each
day a discharge occurs, and after it has been treated.
Turbidity benchmark ANSWER>>>50 NTUs
Stormwater control design goal ANSWER>>>Minimize the discharge of pollutants in
stormwater.
SW control design factors ANSWER>>>Expected
amount and frequency of
precipitation, soil type and range, flow from impervious surfaces,
slopes, and BMPs to control flow rates.
Erosion and sediment control requirements ANSWER>>>Provide
and maintain natural
buffers and/or equivalent erosion and sediment controls for discharges
to any receiving waters located within 50 feet of the site's earth
disturbances.
Directing stormwater ANSWER>>>Towards
vegetated areas, maximize infiltration
and filtering to minimize pollutant discharges unless unadvisable due
to geological factors (GW contamination, karst geography, etc.)
Installing perimeter controls ANSWER>>>Must
be installed upgradient of any
natural buffers, extend on the contour of a slope with ends curved
upwards.
Maintaining perimeter controls ANSWER>>>Remove
sediment before it has
accumulated to 1/2 the height of the control, and if it is ineffective
following a precipitation event: extend or repair controls.
Minimizing sediment track-out ANSWER>>>Restricting
vehicle use to designated
points and installing tracking controls like wheel washing, rumble
plates, and 3-inch gravel.
, CISEC Exam
Managing stockpiles ANSWER>>>Away
from inlets or concentrated flow areas,
install a sediment barrier along downgradient areas, and if unused for
14+ days provide cover.
Minimizing dust ANSWER>>>On areas of exposed soil, apply water or other
suppression techniques.
Soil health factors ANSWER>>>Minimize
steep slope disturbances, preserve
native topsoil unless infeasible, and minimize soil compaction.
Inlet protection ANSWER>>>Install
protection measures that remove sediment
from discharges prior to entry (not required for sites with a sediment
trap system); and clean or replace protections as sediment
accumulates.
Chemical use and storage ANSWER>>>Must
be appropriately suited for soil type
and treated discharges. Must be stored in leak-proof containers under
storm-resistant covers and surrounded by secondary containment.
Exposed soil ANSWER>>>Must be stabilized and resistant to erosion.
Timeline:
5 acres or less--begin stabilizing where activity stops permanently or for more than 14 days immediately,
no more than 14 days.
More than 5 acres--begin stabilizing where activity stops permanently or for more than 14 days
immediately, no more than 7 days.
Turbidity monitoring--dewatering ANSWER>>>Must collect a sample from dewatering discharge each
day a discharge occurs, and after it has been treated.
Turbidity benchmark ANSWER>>>50 NTUs
