LEED-NC 2.2 SS Pre-Req
Terms
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- Define erosion.
- a combination of processes in which materials of the earth's surface are loosened, dissolved or worn away, and transported from one place to another by natural agents.
- Define sedimentation.
- the addition of soils to water bodies by natural and human-related activities.
- An Erosion & Sedimentation Control (ESC) plan should accomplish what 3 objectives?
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1. Prevent loss of topsoil during construction by stormwater runoff and/or wind erosion, including protecting topsoil by stockpiling for reuse.
2. Prevent sedimentation of storm sewer or receiving streams.
3. Prevent polluting the air with dust and particulate matter. - Create an ESC plan during what part of the project?
- Design Phase
- What kind of strategies should you employ when creating an ESC plan?
- Temporary and permanent seeding, mulching, earth dikes, silt fencing, sediment traps, and sediment basins.
- What is the intent of Construction Activity Pollution Prevention?
- Reduce pollution from construction activities by controlling soil erosion, waterway sedimentation and airborne dust generation.
- What are the 2 types of measures used to control sedimentation and what can they include?
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Stabilization: temporary seeding, permanent seeding and mulching.
Structural control: earth dikes, silt fencing, sediment traps and sediment basins. - What does erosion on existing sites typically result from?
- foot traffic, street slopes, runoff that exceeds vegetation holding power, and vehicle traffic on unpaved areas
- What does topsoil contain?
- Organic matter, plant nutrients, and biological activity
- List the project data and calculations information required to document credit using the v 2.2 templates.
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1. copies of the project drawings to document the erosion & sedimentation control measures implemented.
2. Provide confirmation regarding the compliance path taken by the project.
3. Provide narrative to describe the erosion & sedimentation control measures implemented. - What part is the construction activity pollution prevention plan submitted with?
- construction submittal
- What is SWPPP?
- Storm water pollution prevention plan
- What is NPDES?
- National pollutant discharge elimination system
- Who typically identifies erosion prone areas and soil stabilization measures?
- Civil engineer
- Loss of topsoil can greatly reduce the soil's ability to _______.
- support plant life, regulate water flow, and maintain the biodiversity of soil microbes and insects.
- The buildup of sedimentation in stream channels can lead to _________.
- increased flooding, increased turbidity levels, and lower oxygen levels in the water.