VSMP Regulations (Module 4) Flashcards
The VSMP Regulations apply to what five things?
- Every VSMP authority
- The Department (DEQ) in oversight of VSMPs or in its administration of the VSMP
- Every MS4 program
- Every state agency project regulated and every federal entity project covered under the VSMA and Regulations
- Every LDA: Either greater than 1 acre, greater than 2,500 sq. ft in a CBPA, or in a more stringent locality
(Module 4 / Page 3)
When does the SWPPP need to be amended?
Whenever there is a change in design, construction, operation, or maintenance that has a significant effect on the discharge of pollutants to state waters that has not been previously addressed in the SWPPP.
(Module 4 / Page 12)
What section of the Regulations might keep an operator from constructing to a more stringent standard?
No section.
Operators are allowed to adhere to more stringent standards at their own discretion
(Module 4 / Page 5)
What must a SWPPP include?
- Approved erosion and sediment control plan
- Approved stormwater management plan
- Pollution prevention plan
- Plan specifying any additional control measures to meet the requriements of a TMDL (if applicable)
(Module 4 / Page 11)
What is needed to satisfy long term maintenance before a stormwater management plan can be approved?
-An approved agreement for the long term maintenance of a permanent stormwater management facility
(Module 4 / Page 16)
What are the four types of discharges the Pollution Prevention Plan must included effective measure to prohibit?
- Wastewater from washout of concrete, unless managed by an appropriate control
- Wastewater from washout and cleanout of stucco, paint, form release oils, curing compounds, and other construction materials.
- Fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance
- Soaps or solvents used in vehicle and equipment washing
(Module 4 / Page 15)
Describe what the pollution prevention plan must detail.
It must detail the design, installation, and maintenance of effective pollution prevention measures to minimize the discharge of pollutants during construction.
(Module 4 / Page 15)
Describe the importance of the stormwater management plan?
This plan must outline how stormwater leaving a site after construction will meet the necessary water quality and quantity technical criteria.
(Module 4 / Page 12)
What two things make up Virginia’s Runoff Reduction Method, Virginia’s new approach to stormwater management?
- Runoff reduction (reduce and treat stormwater runoff)
- Water quantity standards (storage and release of stromwater runoff) for channel and flood protection
(Module 4 / Page 19)
What is the Phosphorus (P) Load requirement for new development or increased impervious area on prior developed land using the Part II B design criteria?
the Phosphorus (P) load cannot exceed 0.41 lbs./acre/yr.
Module 4 / Page 20
Describe the Phosphorus (P) Load requirements for development on prior developed land where the LDA does not increase impervious cover from predevelopment conditions.
On a site where the LDA is greater than or equal to an acre the Phosphorus Load must be reduced at least 20% below pre-development load.
On a site where the LDA is less than an acre, the Phosphorus Load must be reduced at least 10% below predevelopment load.
(Module 4 / Page 20)
Describe the Phosphorus (P) Load requriements for development on site larger than 1 acre of prior developed land where LDA does increase impervious cover from pre-development conditions.
Increase impervious area cannot exceed 0.41 lbs./acre/year of Phosphorus Load and on the remainder of the site the Phosphorus Load must be reduced 20% below pre-development Phosphorus Load.
(Module 4 / Page 20)
What is concentrated flow?
Runoff that accumulates or converges into well-defined channels.
(Module 4 / Page 22)
What is the definition of a channel?
A natural or manmade waterway
Module 4 / Page 22
What is the definition of sheet flow?
An overland flow or down slope movement of water taking the form of a thin, continuous film over the land.
(Module 4 / Page 22)
What is the definition of flooding?
A volume of water that is too great to be confined within the banks or walls of the stream, water body, or conveyance system and that overflows onto adjacent lands, thereby causing or threatening damage.
(Module 4 / Page 22)