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Stormwater Pollution Prevention Plan ( SWPPP) <br />Blue Valley Ranch Site at 3375 Colorado State Highway 9 <br />SECTION 4: EROSION AND SEDIMENT CONTROLS <br />4.1 Natural Buffers or Equivalent Sediment Controls <br />Buffer Compliance Alternatives <br />Are there any surface waters within 50 feet of your project's earth disturbances? YES X NO <br />Check the compliance alternative that you have chosen: <br />❑ I will provide and maintain a 50 -foot undisturbed natural buffer. <br />X I will provide and maintain an undisturbed natural buffer that is less than 50 feet and is <br />supplemented by additional erosion and sediment controls, which in combination achieves the <br />sediment load reduction equivalent to a 50 -foot undisturbed natural buffer. <br />• Earthen Berm will be constructed, where deemed necessary by SWMP administrator, around <br />perimeter of site. <br />• Soil survey by the CDOT Region 3 Landscape specialist for project STA -009A -034 Sheet 270: <br />Soil on the site consist of loams with areas that contain shale and are a little more alkaline. <br />Buffer Exceptions <br />Which of the following exceptions to the buffer requirements applies to your site? <br />❑ There is no discharge of stormwater to the surface water that is located 50 feet from my <br />construction disturbances. <br />❑ No natural buffer exists due to preexisting development disturbances that occurred prior to the <br />initiation of planning for this project. <br />❑ For a "linear project" (defined in Appendix A), site constraints (e.g., limited (ght -of -way) make it <br />infeasible for me to meet any of the CGP Part 2.1.2.1.a compliance alternatives. <br />❑ The project qualifies as "small residential lot" construction (defined in Part 2.1.2.1.e.iv and in <br />Appendix A). <br />For Alternative 1 (see Appendix G, Part G.2.3.2.a): <br />For Alternative 2 (see Appendix G, Part G.2.3.2.b): <br />SWPPP Preparation Date 02 -12 -2015 Prepared by 10 <br />