SWPPP EXAM 670 FINAL SCRIPT 2026
COMPLETE SOLUTION SET
◉ At what % impervious cover are streams substantially affected?
Answer: 25%
◉ what is the site-based load limit for water quality? Answer: 0.41
lbs/acre/yr total phosphorous
◉ Virginia Runoff Reduction Method- method of load calculations
Answer: load calculations based on land cover type and soil type.
◉ what must happen to potentially harmful sheet flow runoff?
Answer: Must be diverted to stormwater conveyance system.
◉ SWM ponds must be able to convey water safely up to what level
storm event? Answer: must be able to safely convey up to a 100 yr
storm.
◉ Define LDA 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? Answer: anything of 1 acre or more, or
2500 ft^2 in CPBA areas; may be more stringent locally.
◉ what are some activities exempt from SWM regulations? Answer:
mining, agriculture, sewer discharges, local reclamation programs,
routine maintenance of preexisting operations, public emergency
activity
◉ what term basically means a plea deal for stormwater offenders?
Answer: consent order, which replaces penalties with fines.
◉ how long does VSMP authority have to review SWM plan?
Answer: 15 days to review and determine approval, and notify
applicant.
◉ How often must a VSMP authority inspect an LDA? Answer:
Periodically.
◉ all SWPPP requirements may be met by Answer: incorporating
other plans into reference, or by developing missing elements.
◉ What must the DEQ issue to an operator before an LDA? Answer:
a construction GP
COMPLETE SOLUTION SET
◉ At what % impervious cover are streams substantially affected?
Answer: 25%
◉ what is the site-based load limit for water quality? Answer: 0.41
lbs/acre/yr total phosphorous
◉ Virginia Runoff Reduction Method- method of load calculations
Answer: load calculations based on land cover type and soil type.
◉ what must happen to potentially harmful sheet flow runoff?
Answer: Must be diverted to stormwater conveyance system.
◉ SWM ponds must be able to convey water safely up to what level
storm event? Answer: must be able to safely convey up to a 100 yr
storm.
◉ Define LDA 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? Answer: anything of 1 acre or more, or
2500 ft^2 in CPBA areas; may be more stringent locally.
◉ what are some activities exempt from SWM regulations? Answer:
mining, agriculture, sewer discharges, local reclamation programs,
routine maintenance of preexisting operations, public emergency
activity
◉ what term basically means a plea deal for stormwater offenders?
Answer: consent order, which replaces penalties with fines.
◉ how long does VSMP authority have to review SWM plan?
Answer: 15 days to review and determine approval, and notify
applicant.
◉ How often must a VSMP authority inspect an LDA? Answer:
Periodically.
◉ all SWPPP requirements may be met by Answer: incorporating
other plans into reference, or by developing missing elements.
◉ What must the DEQ issue to an operator before an LDA? Answer:
a construction GP
