STORM WATER COMPLIANCE
CONSTRUCTION CERTIFICATION
EVALUATION FULL QUESTIONS AND
SOLUTIONS VERIFIED PREPARATION
MATERIAL
●● Does the stormwater management plan address runoff during
construction or after?
Answer: The stormwater management plan addresses post-construction
stormwater runoff.
●● What impact does impervious cover have on water quality?
Answer: Impervious cover increases stormwater runoff volume and
velocity, leading to higher pollutant levels like sediment and phosphorus,
negatively affecting water quality.
●● What is the target pollutant in the water quality criteria?
Answer: Phosphorus
●● What is the lower limit of imperviousness that can result in stream
degradation?
Answer: 10%
, ●● What destructive forces does the SWM regulation protect against?
Answer: Channel erosion and flooding.
●● How does the rate of runoff change after development?
Answer: Runoff rate increases post-development due to vegetation
replacement with impervious surfaces, potentially causing erosion and
flooding.
●● What must a locality's ordinance require for submission and
approval?
Answer: ESC plan and SWM plan (9VAC25-870-148)
●● List three violations for which a penalty may be imposed.
Answer: Violations include: No registration date, No SWPPP,
Incomplete SWPPP, SWPPP not available for review, No approved ESC
plan, Failure to install stormwater management BMPs or ESCs,
Improperly installed or maintained stormwater BMPs or ESCs,
Operational deficiencies, Failure to conduct required inspections,
Incomplete, improper, or missed inspections.
●● Maximum Penalty under the Stormwater Act
Answer: $32,500
●● Locality VSMP Authority Registration Statement Retention
CONSTRUCTION CERTIFICATION
EVALUATION FULL QUESTIONS AND
SOLUTIONS VERIFIED PREPARATION
MATERIAL
●● Does the stormwater management plan address runoff during
construction or after?
Answer: The stormwater management plan addresses post-construction
stormwater runoff.
●● What impact does impervious cover have on water quality?
Answer: Impervious cover increases stormwater runoff volume and
velocity, leading to higher pollutant levels like sediment and phosphorus,
negatively affecting water quality.
●● What is the target pollutant in the water quality criteria?
Answer: Phosphorus
●● What is the lower limit of imperviousness that can result in stream
degradation?
Answer: 10%
, ●● What destructive forces does the SWM regulation protect against?
Answer: Channel erosion and flooding.
●● How does the rate of runoff change after development?
Answer: Runoff rate increases post-development due to vegetation
replacement with impervious surfaces, potentially causing erosion and
flooding.
●● What must a locality's ordinance require for submission and
approval?
Answer: ESC plan and SWM plan (9VAC25-870-148)
●● List three violations for which a penalty may be imposed.
Answer: Violations include: No registration date, No SWPPP,
Incomplete SWPPP, SWPPP not available for review, No approved ESC
plan, Failure to install stormwater management BMPs or ESCs,
Improperly installed or maintained stormwater BMPs or ESCs,
Operational deficiencies, Failure to conduct required inspections,
Incomplete, improper, or missed inspections.
●● Maximum Penalty under the Stormwater Act
Answer: $32,500
●● Locality VSMP Authority Registration Statement Retention
