VA DEQ SWM Inspector Exam UPDATED
ACTUAL Questions and CORRECT
Answers
What element is targeted by water quality criteria? - CORRECT ANSWER Phosphorous,
it indicates pollution by bonding with other pollutants.
At what % impervious cover are streams substantially affected? - CORRECT
ANSWER 25%
what is the site-based load limit for water quality? - CORRECT ANSWER 0.41 lbs/acre/yr
total phosphorous
Virginia Runoff Reduction Method- method of load calculations - CORRECT
ANSWER load calculations based on land cover type and soil type.
what must happen to potentially harmful sheet flow runoff? - CORRECT ANSWER Must
be diverted to stormwater conveyance system.
SWM ponds must be able to convey water safely up to what level storm event? - CORRECT
ANSWER must be able to safely convey up to a 100 yr storm.
Define LDA - CORRECT ANSWER Land disturbing activity; any man-made change to
the land surface that potentially changes its runoff characteristics; includes clearing, grading, and
excavation.
What size LDA must comply with stormwater management regulation? in CPBA areas? -
CORRECT ANSWER anything of 1 acre or more, or 2500 ft^2 in CPBA areas; may be
more stringent locally.
ACTUAL Questions and CORRECT
Answers
What element is targeted by water quality criteria? - CORRECT ANSWER Phosphorous,
it indicates pollution by bonding with other pollutants.
At what % impervious cover are streams substantially affected? - CORRECT
ANSWER 25%
what is the site-based load limit for water quality? - CORRECT ANSWER 0.41 lbs/acre/yr
total phosphorous
Virginia Runoff Reduction Method- method of load calculations - CORRECT
ANSWER load calculations based on land cover type and soil type.
what must happen to potentially harmful sheet flow runoff? - CORRECT ANSWER Must
be diverted to stormwater conveyance system.
SWM ponds must be able to convey water safely up to what level storm event? - CORRECT
ANSWER must be able to safely convey up to a 100 yr storm.
Define LDA - CORRECT ANSWER Land disturbing activity; any man-made change to
the land surface that potentially changes its runoff characteristics; includes clearing, grading, and
excavation.
What size LDA must comply with stormwater management regulation? in CPBA areas? -
CORRECT ANSWER anything of 1 acre or more, or 2500 ft^2 in CPBA areas; may be
more stringent locally.
