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I <br /> 8.0 Construction Stormwater Pollution Prevention Elements <br /> The purpose of this section is to describe how each of the 13 Construction Stormwater Pollution <br /> Prevention Elements has been addressed and to identify the type and location of BMPs used to <br /> satisfy the required element. If an element is not applicable to the project, a reason is provided. <br /> 8.1 Preserve Vegetation/Mark Clearing Limits <br /> Prior to beginning land-disturbing activities, clearing limits will be marked with high visibility silt <br /> fence (BMP C233). <br /> 8.2 Establish Construction Access <br /> Because the site is currently developed with asphalt paving and the improvements are located <br /> throughout the site, a construction entrance will not be provided. Instead,the existing pavement <br /> will be utilized and maintained throughout construction. <br /> 8.3 Control Flow Rates <br /> The existing sediment pond provides an outlet structure that controls release rates of runoff.This <br /> I existing system will be used throughout construction to control flow rates. In addition, straw <br /> wattles (BMP C235)will be used to slow flow rates prior to entering the existing system, <br /> minimizing the opportunity to become turbid. <br /> 8.4 Install Sediment Controls <br /> Structural control measures will be used to reduce erosion and retain sediment on the <br /> construction site. The control measures are selected to fit specific site and seasonal conditions. <br /> The temporary erosion and sediment control (TESC) plans include the following structural <br /> measures: <br /> 1. Filter fabric fencing (BMP C233)around portions of the perimeter of the site to prevent <br /> sediment-laden stormwater from being transported offsite, including fencing between <br /> construction activities and critical areas. <br /> 2. Straw wattles (BMP C235)will be placed along flow paths of runoff to reduce flow velocities <br /> and promote sheet flow. <br /> ' 3. Catch basin inlet protection to prevent sedimentation of stormwater conveyance systems. <br /> 8.5 Stabilize Soils <br /> Because source control is the most important form of erosion control, construction practices must <br /> adhere to stringent cover requirements. <br /> More specifically, during the period of May 1 through September 30, the Contractor will not be <br /> allowed to leave soils unprotected for more than 15 days, and immediate seeding will be required <br /> ' for areas brought to finish grade with no further work planned for the next 30 days. Areas to be <br /> paved may be armored with crushed rock subbase in place of other stabilizing measures. The <br /> area of clearing will be limited to the amount that can be stabilized by September 30 of that year. <br /> 111 <br /> Construction Stormwater Pollution Prevention Plan <br /> The Bethany at Silver Lake 3 0111011 <br /> 2180406.10 <br />