CESSWI Pt. 2 - BMPs
questions and
answers(already
passed)
Hydromulch vs Hydroseed (EC) - answer Mulch- Temp BMP that
consists of WOOD or other fiber
Seed- Temp BMP that consists of SEED, , etc...
Soil Binders (EC) - answer Polyacrylamides (PAMS) applied to soil to
reduce ersion
Tackifiers (EC) - answer adhesives used to secure mulch materials to
a surface -> casuse siol particles to attach to one another
Baffles (SC) - answer Lengthen Flow path.
Slowing, calming, and distributing the flow in these devices
Sediment Bags (SC) - answer porous bags utilized for catching
sediment when dewatering
Sediment Basin - answer small ponds designed to hold runoff from
construction sites so that sediment can settle out.
, sediment trap - answer smaller versions of sediment basins, for use
on sites less than 5 acres
Sediment tube ditch checks - answer Compact rolls of mulch, husk,
and ect... to capture sediment and reduce flow velocity
Straw Bales (SC) - answer *many jurisdictions do not allow these*
-route flow
-create damming area
Failure of straw bale dikes are common
Temporary Stream Crossing (SC) - answer "temporary culvert"
Triangular Filter Fabric Dike (SC) - answer roll of wire or filter fabric
placed at sediment laden runoff areas
creates ponding and allows sediment to settle
Diversions (Runoff) - answer (T/P) intercept and divert water to
stabilized outlet or treatment practice
Gabions (Runoff) - answer Steel mesh cages filled with small rocks
to achieve structural purposes
Outlet Velocity Protection (Runoff) - answer Prevents scour at SW
outlets
minimizes potential for downstream erosion
questions and
answers(already
passed)
Hydromulch vs Hydroseed (EC) - answer Mulch- Temp BMP that
consists of WOOD or other fiber
Seed- Temp BMP that consists of SEED, , etc...
Soil Binders (EC) - answer Polyacrylamides (PAMS) applied to soil to
reduce ersion
Tackifiers (EC) - answer adhesives used to secure mulch materials to
a surface -> casuse siol particles to attach to one another
Baffles (SC) - answer Lengthen Flow path.
Slowing, calming, and distributing the flow in these devices
Sediment Bags (SC) - answer porous bags utilized for catching
sediment when dewatering
Sediment Basin - answer small ponds designed to hold runoff from
construction sites so that sediment can settle out.
, sediment trap - answer smaller versions of sediment basins, for use
on sites less than 5 acres
Sediment tube ditch checks - answer Compact rolls of mulch, husk,
and ect... to capture sediment and reduce flow velocity
Straw Bales (SC) - answer *many jurisdictions do not allow these*
-route flow
-create damming area
Failure of straw bale dikes are common
Temporary Stream Crossing (SC) - answer "temporary culvert"
Triangular Filter Fabric Dike (SC) - answer roll of wire or filter fabric
placed at sediment laden runoff areas
creates ponding and allows sediment to settle
Diversions (Runoff) - answer (T/P) intercept and divert water to
stabilized outlet or treatment practice
Gabions (Runoff) - answer Steel mesh cages filled with small rocks
to achieve structural purposes
Outlet Velocity Protection (Runoff) - answer Prevents scour at SW
outlets
minimizes potential for downstream erosion
