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1. Bmps designed for sediment control - ANSWER 1) baffles
2)Cut-back curbs
3) fiber rolls
4) sediment bags
5) temp stream crossing
6) sediment basins
7) sediment traps
8) silt fence
9) skimmers
10) stabilized entrances and exits
11) turbidity curtains
2. Sediment basin: descri & purp - ANSWER a structural bmp that allows
stormwater to be collected, and allows sediment present to fall out of suspension
before teh water is allowed to undergo controlled release
,3. Sediment basin: Object - ANSWER 1) sediment control
2) runoff control
3) post construction management
4. Sediment basin: Target pollutants - ANSWER 1)sediment
2) trash
3) hydrocarbons/petroleum products
4) turbidity
5) metals
5. Sediment basin: applications - ANSWER 1) where sediment laden run-off
has the potential to enter storm drain systems or waterways
6. Sediment basin: Limitations - ANSWER 1) basins should be placed where 6
will not cause injury to persons, property or utilities
2) large area is required
3) standing water, which is ideal place for vector prduction(mosquitoes, etc)
7. Sediment basin: Impl consid - ANSWER 1) good idea to block public access
to basin with fencing
2) construction should comply with state provincial, and local safety laws,
ordinances, rules and regulations
,8. Sediment basin: Inspect - ANSWER 1) erosion around inflow and outflow
points
2) sediment buildup and trash
3) proper drainage area
4) slope and embankment stabilization
5) properly sized outlet devices with dewatering and stabilized outlet
6) access for maintenance
9. Sediment basin: Maint - ANSWER 1) remove accumulated trash and debris
from the basin and/or trash rack, when applicable
2) remove basin sediment as specified in swppp
3) repair eroded areas of the basin
4) repair structural devices related to riser assembly/dewatering device
5) repair eroded areas at inflow/outflow areas
6) maintain vegetation per local jurisdiction requirements
10. Sediment basin: Potential assoc bmps - ANSWER 1) diversions
2) outlet velocity protection
3) swales
4) pipes
5) slope drains
6) baffles
7) rip rap
8) RECP
, 11. Silt Fence:Descri & purp - ANSWER a temp structural bmp consisting of
filter fabric stretched across stake and entrenched. SF can also be
reinforced(metal stake and small gauge wire) and/or super(metal stakes and chain
link fenc).
all sf is designed to contain sediment while allowing water to flow through
12. Silt Fence:object - ANSWER 1) sediment control
2) runoff control
13. Silt Fence: Targ pollut - ANSWER 1) sediment
2) trash/debris
14. Silt Fence:Applic - ANSWER 1) perimeter control
2) small sediment containment system
15. Silt Fence:Limitations - ANSWER 1) not for concentrated flow
2) needs uniform entrenchment(not in rocky or paved areas)
3) degraded by uv light
4) not used where accumulation of water can cause flooding
5) not for steep slopes
6) only for soil areas, not paved