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Page 6 (Exhibit K – (Amendment to Owner-Engineer Agreement) – Attachment 1) 1. Prepare a Storm Water Pollution Prevention Plan Report document to include the following: a. Using existing and available GIS information, show vicinity map, legal description of project site, hydrologic 14-digit unit code, location of all wetlands, lakes and water courses in vicinity of project. Identify existing vegetation, drainage patterns, adjacent land use, potential discharges to groundwater, and ultimate receiving waters on the project site. b. Provide maps showing the Floodplains, Floodways, and Floodway Fringes, if applicable. Note any State or Federal water quality permits (ie. DNR, Army Corps, etc.) required. c. Determine soil types within the project area using the NRCS soil map – no actual soil samples will be performed. d. Calculate Pre-Construction and Post Construction Estimate of Peak Discharge. e. Develop sequence describing storm water quality measure implementation relative to land disturbing activities. f. Document elements of this SWPPP where applicable within the Report, including but not limited to, sediment control, runoff control, inlet protection, pollutant sources, BMP implementation, and temporary and final stabilization methods. 2. Prepare Storm Water Pollution Prevention Plan (SWPPP). a. Base drawings should indicate the following: 1) Plat or Survey of existing project site. 2) Location and approximate boundaries of all disturbed areas with construction limits clearly shown. 3) Location of all lots and proposed site improvements. 4) Existing site topography at an interval appropriate to show detailed drainage patterns. 5) Proposed final site topography at an interval appropriate to show detailed drainage patterns. 6) Location, size and dimensions of proposed storm water system. 7) Pre-Construction and Post Construction Infiltration Rates. 8) Location, size and dimensions of proposed Best Management Practices (BMPs). 9) Location of all environmentally sensitive areas on the site (ie. wetlands) 10) Specific points where stormwater will leave the site. b. The SWPPP will show the location, dimensions, and construction details for all erosion control measures required, including but not limited to, temporary and permanent erosion control measures, water quality measures, perimeter control and stable construction