CPESC exam Questions and Answers
What are the 5 factors that influence erosion? - Answer-Soil erodibility, topography,
vegetative cover, season, climate (rainfall)
What influences soil erodibility? - Answer-Soil texture, structure and % of OM
How does vegetative cover influence erodibility? - A...
BMP considerations for clearing and grubbing? - Answer✔✔-Preserve existing vegetation; clear
only what is required for immediate construction activity
BMP considerations for mass grading? - Answer✔✔-Create principle basins, traps, barriers,
diversions and channels; temporary stabilization; manage concentrated runon and runoff (water
bars)
BMP considerations for site access & off-hauling? - Answer✔✔-Stabilize with gravel and
temporary vegetation; limit ingress and egress points
What are the 3 stages of inlet construction? - Answer✔✔-Pipe installation, inlet construction,
inlet backfill
BMP considerations of channel construction? - Answer✔✔-Monitor weather, install grade
controls, stabilize streambanks early; consider time of year (weather) to start construction
(phasing)
BMP considerations of final stabilization? - Answer✔✔-Immediately apply temp or permanent
stabilization of disturbed areas; don't allow surface area to dry out for a few days before
seeding (affects germination)
BMP considerations of vertical construction? - Answer✔✔-Protect inlets; modify plan to show
new conditions and updated measures
What would have to be updated as construction progressed on the SWPPP? - Answer✔✔-
Installation and removal dates, changes in plan designs, and changes in BMPs
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