QUESTIONS 2026/2027 || ENVIRONMENTAL COMPLIANCE
REVIEW || VERIFIED QUESTIONS & ANSWERS || HIGH-
YIELD STUDY GUIDE || COMPLETE TEST BANK || GRADED
A+
How long should project records, including approved stormwater management
plans, be retained for?
For three years after permit termination or project completion
Rooftop (Impervious Area) Disconnection
strategy to manage runoff close to it's source by infiltrating, filtering, or reusing
it as it moves from the impervious surface to the drainage system.
simple disconnection or disconnection leading
Sheet Flow to a Vegetated Filter Strip or Conserved Open Space
Filter strips are vegetates areas that treat sheet flow from adjacent impervious
and managed turf areas by slowing the flow and allowing sediment and attached
pollutants to settle and runoff be filtered by the vegetation
Grass Channels
reduce SW runoff and pollutants by slowing the flow and allowing sediment
and attached pollutants to settle and runoff be filtered by vegetation
can be used on managed turf areas including sports fields, and golf courses, and
drainage areas with combined impervious turf cover (roads and yards)
Soil Compost Amendments
applied to compacted soil after construction to improve infiltration and reduce
runoff
can be used on compacted urban lawns, downspout disconnections, grass
channels, and filter strips
Vegetated Roofs
alternative roof that has waterproofing and drainage materials and an engineered
growing media designed to support plant growth
,temporarily catch and store rainwater before going into storm drainage system -
vegetative uptake
Vegetative Roof - Intensive
deep growing media layer that ranges from 6 in to 4 ft deep - wide variety of of
plants including trees
Vegetative Roof - Extensive
shallow growing media of 2 in to 6 in and planted with carefully selected,
drought tolerant, plants
Rooftop Disconnection - Simple
whereby rooftops and/or on-lot residential impervious surfaces are directed to a
pervious path
Rooftop Disconnection - Disconnection Leading
one of the following alternative runoff reduction practices: 1. soil compost
amended filter path 2. infiltration by micro-infiltration practice 3. filtration by
rain gardens or micro-bioretention 4. storage and release into stormwater planter
5. storage and reuse into a cistern
Rainwater Harvesting
systems intercept, divert, store, and release rainfall for future reuse - also known
as a cistern
harvested by collecting and storing rainwater in above/under ground storage
tank to be used for non-potable water sources (flushing toliets/car
washes/landscape irrigation etc)
additional BMPS are needed to handle overflow
Permeable Pavement
alternative to asphalt or concrete that allows stormwater to filter through
openings in surface into an underlying stone reservoir for storage or infiltration
to soil
Infiltration
temporary surface or underground storage that allows incoming stormwater
runoff to move through the soil
, chemical and physical adsorption processes remove pollutants
Bioretention Basins
a depressed area that uses a custom of soil mix and plants to reduce stormwater
runoff and filter pollutants - rain water ponds about 6 inches before rapidly
infiltrating
primary component: filter bed - mix of sand, soil, and organic material as
filtering media
uses: parking lot islands, parking lot edges, curb extensions, courtyards,
residential lots
Dry Swales
shallow, linear bioretention cells with a turf/material cover
filters desired treatment volume or runoff will infiltrate to soil - does not retain
water
Wet Swales
intercept groundwater to retain water - allows for settling, vegetative uptake,
and microbial activity
typically less than 6 in deep
Filtering Practices
filters temporarily store and treat stormwater runoff by passing it through am
engineered filter media, collecting the filtered water in an underdrain, then
returning it back to the storm drainage system
filter consists of two chambers: first chamber is for settling, second chamber
serves as filter
Constructed Wetlands
shallow depressions that receive stormwater inputs for water quality treatments
- typicall less than 1' dep
allows settling, vegetative uptake, and microbial activity
Wet Pond