Stormwater Exam With 100% Verified Answers
1. What is a swale drainage channels planted with flood tolerant, erosion resistant plants.
water will
and why is it so ef- collect in the swale and pollutants soak into the ground, reducing
volume of runott.
fective in reduc-
ing the volume
of runoff?
2. What is a wet
detention storm water control structures providing retention and treatment of
pond? Draw. contaminated storm water runott.
3. How does a
wet
detention Pond with a permanent pool of water that treats incoming stormwater by
pond
function allowing particles to settle and nutrients removed by biological uptake.
and what does treated top layer then pops ott to waters of the state.
it do to clean
wa- ter?
4. What are the
ad-
Advantages: decreased potential for downstream flooding and stream
bank ero-
vantages and dis- sion, improved water quality due to removal of suspended solids, metals
and
advantages of us- dissolved nutrients.
ing wet Disadvantages: improperly designed ponds may result in stratification
deten- tion?
and anoxic conditions which can promote resuspension of solids and
release of nutrients and metals from trapped sediments. potential for
groundwater contamination should be carefully evaluated, precaution
5. Describe the should be taken to prevent damage to wetland areas during pond
parking lots construction.
and
stormwater
1/
6
, Stormwater Exam With 100% Verified Answers
a sedimentation basin for
large particles which is
connected to a treatment
basin by an equalizer
pipe. treatment pond
includes side bank
filtration system to aid in
slow release of
stormwater run ott after
storm events.
2/
6
1. What is a swale drainage channels planted with flood tolerant, erosion resistant plants.
water will
and why is it so ef- collect in the swale and pollutants soak into the ground, reducing
volume of runott.
fective in reduc-
ing the volume
of runoff?
2. What is a wet
detention storm water control structures providing retention and treatment of
pond? Draw. contaminated storm water runott.
3. How does a
wet
detention Pond with a permanent pool of water that treats incoming stormwater by
pond
function allowing particles to settle and nutrients removed by biological uptake.
and what does treated top layer then pops ott to waters of the state.
it do to clean
wa- ter?
4. What are the
ad-
Advantages: decreased potential for downstream flooding and stream
bank ero-
vantages and dis- sion, improved water quality due to removal of suspended solids, metals
and
advantages of us- dissolved nutrients.
ing wet Disadvantages: improperly designed ponds may result in stratification
deten- tion?
and anoxic conditions which can promote resuspension of solids and
release of nutrients and metals from trapped sediments. potential for
groundwater contamination should be carefully evaluated, precaution
5. Describe the should be taken to prevent damage to wetland areas during pond
parking lots construction.
and
stormwater
1/
6
, Stormwater Exam With 100% Verified Answers
a sedimentation basin for
large particles which is
connected to a treatment
basin by an equalizer
pipe. treatment pond
includes side bank
filtration system to aid in
slow release of
stormwater run ott after
storm events.
2/
6
