VA DEQ ESC Inspector Exam questions with answers,

VA DEQ ESC Inspector Exam questions
|\ |\ |\ |\ |\ |\




with answers |\




VESCP - CORRECT ANSWERS ✔✔Virginia Erosion and Sediment
|\ |\ |\ |\ |\ |\ |\ |\


Control Program |\




- Administered by counties/cities (must), towns (may)
|\ |\ |\ |\ |\ |\




- MUST BE APPROVED
|\ |\ |\




Minimum Standard 1 - CORRECT ANSWERS ✔✔Stabilization
|\ |\ |\ |\ |\ |\




permanent or temporary soil stabilization shall be applied to
|\ |\ |\ |\ |\ |\ |\ |\ |\


denuded areas within seven days after final grade is reached on
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


any portion of the site; temporary soil stabilization shall be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


applied within seven days to denuded areas that may not be at
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


final grade but will remain dormant for longer than 14 days;
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


permanent stabilization shall be applied to areas that are to be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


left dormant for more than one year
|\ |\ |\ |\ |\ |\




Site NOT at Final Grade - CORRECT ANSWERS ✔✔- stabilize in 14
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


days
- temporarily seed
|\ |\




- mulch
|\




- permanently stabilize if dormant > 1 year
|\ |\ |\ |\ |\ |\ |\

,Site at Final Grade - CORRECT ANSWERS ✔✔- stabilize in 7 days
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


(recommended immediately) |\




- permanently or temporarily seed and mulch
|\ |\ |\ |\ |\ |\




- mulch/matting/straw
|\




Minimum Standard 2 - CORRECT ANSWERS ✔✔Stock Piles, Waste
|\ |\ |\ |\ |\ |\ |\ |\ |\


and Borrow Areas
|\ |\




during construction, soil stock piles and borrow areas shall be
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


stabilized or protected with sediment trapping measures
|\ |\ |\ |\ |\ |\




mulch prevents erosion by protecting the surface from raindrop
|\ |\ |\ |\ |\ |\ |\ |\ |\


impact and silt fence intercepts and detains from disturbed areas
|\ |\ |\ |\ |\ |\ |\ |\ |\




Minimum Standard 3 - CORRECT ANSWERS ✔✔Permanent
|\ |\ |\ |\ |\ |\ |\


Vegetation


permanent vegetation cover shall be established on denuded
|\ |\ |\ |\ |\ |\ |\ |\


areas not otherwise permanently stabilized (permanent
|\ |\ |\ |\ |\ |\


vegetation shall not be considered established until a ground
|\ |\ |\ |\ |\ |\ |\ |\ |\


cover is achieved that is uniform, mature enough to survive, and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


will inhibit erosion *there is no % associated with this*)
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\




reduce erosion and decrease sediment yield from disturbed area
|\ |\ |\ |\ |\ |\ |\ |\




this is the standard used to verify that a site is ready for release
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


of bonds or surety
|\ |\ |\

,Minimum Standard 4 - CORRECT ANSWERS ✔✔First-Step
|\ |\ |\ |\ |\ |\ |\


Measures


Sediment basins and traps, perimeter dikes, sediment barriers
|\ |\ |\ |\ |\ |\ |\ |\


and other measures intended to trap sediment shall be
|\ |\ |\ |\ |\ |\ |\ |\ |\


constructed as a first step in any land-disturbing activity and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


shall be made functional before upslope land disturbance takes
|\ |\ |\ |\ |\ |\ |\ |\ |\


place


a certain amount of initial land disturbance may be required to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


provide access for equipment to install the perimeter controls,
|\ |\ |\ |\ |\ |\ |\ |\ |\


but site clearing and grading should be kept to a minimum until
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


the perimeter controls are in place
|\ |\ |\ |\ |\




intercepts and detains small amounts of sediment from disturbed
|\ |\ |\ |\ |\ |\ |\ |\


areas during construction operation to prevent sediment from
|\ |\ |\ |\ |\ |\ |\ |\ |\


leaving the site and decrease velocity of sheet flows and low-to-
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


moderate level channel flow |\ |\ |\




Perimeter Controls - CORRECT ANSWERS ✔✔assures that
|\ |\ |\ |\ |\ |\ |\


sediment does not leave the perimeter of the land-disturbing
|\ |\ |\ |\ |\ |\ |\ |\ |\


area once site clearing, grading, and construction commences
|\ |\ |\ |\ |\ |\ |\




Examples: silt fences, sediment traps, sediment basins,
|\ |\ |\ |\ |\ |\ |\


construction entrance, temporary diversions, diversions |\ |\ |\ |\




Minimum Standard 5 - CORRECT ANSWERS ✔✔Earthen Structure
|\ |\ |\ |\ |\ |\ |\ |\


Stabilization

, stabilization measures shall be applied to earthen structures such
|\ |\ |\ |\ |\ |\ |\ |\


as dams, dikes, and diversions immediately after installation
|\ |\ |\ |\ |\ |\ |\ |\




reduce erosion and sedimentation and reduce damage from
|\ |\ |\ |\ |\ |\ |\ |\


sediment and runoff to downstream or off-site areas
|\ |\ |\ |\ |\ |\ |\




Minimum Standard 6 - CORRECT ANSWERS ✔✔Traps and Basins
|\ |\ |\ |\ |\ |\ |\ |\




sediment traps and basins shall be designed and constructed
|\ |\ |\ |\ |\ |\ |\ |\ |\


based upon the total drainage area (not just disturbed area) to
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


be served by the trap or basin
|\ |\ |\ |\ |\ |\




Sediment Traps - CORRECT ANSWERS ✔✔minimum storage
|\ |\ |\ |\ |\ |\ |\


capacity shall be 134 cubic yards per acre of drainage area and
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


shall only control drainage areas less than 3 acres
|\ |\ |\ |\ |\ |\ |\ |\




*stone outlet = trap* |\ |\ |\




Sediment Basins - CORRECT ANSWERS ✔✔surface runoff from
|\ |\ |\ |\ |\ |\ |\ |\


disturbed areas that is comprised of flow from drainage areas
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


greater than or equal to 3 acres shall be controlled by a basin;
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


minimum storage capacity of a sediment basin shall be 134 cubic
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


yards per acre of drainage area; the outfall system shall, at a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\ |\


minimum, maintain the structural integrity of the basin during a
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


25-year storm of 24-hour duration; runoff coefficients used in
|\ |\ |\ |\ |\ |\ |\ |\ |\


runoff calculations shall correspond to a bare earth condition or
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


those conditions expected to exist while the sediment basin is
|\ |\ |\ |\ |\ |\ |\ |\ |\ |\


utilized.