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Stormwater Pollution Prevention Plan <br /> 3.0 Construction Stormwater BMPs <br /> 3.1 The 12 BMP Elements <br /> This section provides a detailed description of the BMPs to be implemented based on the 12 <br /> required elements of the SWPPP. Alternate BMPs for each element are included in Appendix C <br /> as a quick reference tool for the onsite inspector in the event that the BMP(s) listed below are <br /> deemed ineffective or inappropriate during construction to satisfy the requirements set forth in <br /> the General NPDES Permit(Appendix D). To avoid potential erosion and sediment control <br /> issues that may cause a violation(s)of the NPDES Construction Stormwater permit(as provided <br /> in Appendix D),the Certified Erosion and Sediment Control Lead will promptly initiate the <br /> implementation of one or more of the alternative BMPs listed in Appendix C after the first sign <br /> that existing BMPs are ineffective or failing. <br /> 3.1.1 Element#1—Mark Clearing Limits <br /> In general, natural vegetation and native topsoil shall be retained in an undisturbed state to the <br /> maximum extent possible. <br /> 3.1.2 Element#2—Establish Construction Access <br /> Construction access or activities occurring on unpaved areas shall be minimized,yet where <br /> necessary,access points shall be stabilized to minimize the tracking of sediment onto public <br /> roads, and wheel washing, street sweeping, and street cleaning shall be employed to prevent <br /> sediment from entering state waters. All wash wastewater shall be controlled on site. The <br /> specific BMPs related to establishing construction access that will be used on this project <br /> include: <br /> • Stabilized Construction Entrance (BMP C 105) <br /> 3.1.3 Element#3—Control Flow Rates <br /> In order to protect the properties and waterways downstream of the project site, stormwater <br /> discharges from the site will be controlled. The specific BMPs for flow control that shall be used <br /> on this project include: <br /> The specific BMPs for flow control that shall be used on this project include: <br /> • None proposed. <br /> No change in flow rates is anticipated. <br /> SWPPP Page 4 <br /> Delta Tidelands—Site Grading June 2016 <br />