We are renovating a 50,000 square foot residence hall on a University campus. Our erosion and sedimentation control plan includes several measures that meet the requirements of EPA document number EPA 832/R-92-005 (September 1992). However, we would like confirmation that the scope our plan meets LEEDs intent. The following is a draft of our erosion and sedimentation control plan. We will submit this narrative along with a site drawing that shows details of silt fences (with and without hay barriers), catch basin sediment traps, and silt sack sediment traps. The plan will also show a soil removal area, slope contours, and major drainage areas of the site. "All sitework for the project will take place on the north side of the building. We will be removing approximately 8800sf of lawn and topsoil. Per EPA 832/R-92-005, Section 3.2.1, the removed material will be replaced with a free draining gravel type material. This will allow truck access and lay down areas with minimal soil displacement. Per EPA 832/R-92-005, Section 3.2.2, we will install a silt fence with hay bale barrier along the North, East and West elevations. The South elevation will have a silt fence barrier without hay bales. Given that the South elevation has no excavation or soils disruption the need for hay bales would not be required. The silt fences will be inspected on a weekly basis for any damage or deterioration of the hay bales or fabric. There are 2 existing catch basins, 1 located to the West and 1 located to the North, along with 9 smaller catch basins located on the South elevation. Per EPA 832/R-92-005, Section 3.2.2, each catch basin will have catch basin sediment traps. 1 existing catch basin located within the site perimeter fence will have a catch basin sediment trap with the hay bale barrier. The existing grades currently pitch toward this catch basing and will remain the same. The catch basin sediment traps will be checked once a week for any silt build up. In the event of a significant rainfall the traps will be checked at the end of the workday or the following morning. If there is a build up of silt within the trap it will be replaced at that time. Once a month the traps will be replaced with new filter fabric and hay bales where required. Per EPA 832/R-92-005, Section 3.2.1, once the project is completed the site will be immediately seeded and planted with permanent vegetation. Per EPA 832/R-92-005, Section 3.2.1, the site plan shows areas along the building perimeter that will not be disturbed during the construction phase, along with the trees will be protected from truck and vehicle traffic. The summary of our erosion and sedimentation control plan, as it will appear on the LEED Letter Template, is as follows: > Wetting of debris removal to dumpsters: 3.2.1 Dust Control > Minimize disturbance of current vegetation: 3.2.1 General Stabilization Practices > Use of free draining gravel on temporary roadway: 3.2.1 Dust Control > Silt fence along North, East, West, and South elevations: 3.2.2 Silt Fence > Silt fence with hay bales along North, East, and West elevations: 3.2.2 Silt Fence > Catch basin siltsack sediment trap: 3.2.2 Sediment Trap > Catch basin hay bale sediment trap: 3.2.2 Sediment Trap > Minimize disturbance of current vegetation: 3.2.1 Permanent Seeding and Planting > Prompt planting of permanent vegetation upon completion: 3.2.1 Permanent Seeding and Planting
The project's erosion and sedimentation plan, as described here, meets the criteria set forth for this prerequisite. The measures listed meet the requirements of the EPA 832/R-92-005 document.
Related Addenda (Corrections & Interpretations)