3600 SMITH AVE 2025-08-19 - Laserfiche WebLink

Surface roughening should be included as a part of the earthwork operation such that exposed area are left with micro storage and roughened areas after each pass or completion of excavation in a given area. Alternate slope protection BMPS are included in Appendix C as a quick reference tool for the on-site inspector in the event the BMP listed above is deemed ineffective or inappropriate during construction to satisfy the requirements set forth in General NPDES permit(Appendix D).To avoid potential erosion and sediment control issues that may cause a violation of the NPDES Construction Stormwater permit, the Certified Erosion and Sediment Lead will promptly initiate the implementation of one or more of the alternate BMPs listed in Appendix C after the first sign that existing BMP are ineffective or failing. 3.1.7 Element#7—Protect Drain Inlets All storm drain inlets and culverts operable during construction shall be protected to prevent unfiltered or untreated water from entering the drainage conveyance system. However,the first priority is to keep all access roads clean of sediments and keep street wash water separate from entering storm drains until treatment can be provided. Storm Drain Inlet Protection (BMP C220)will be implemented for all drainage inlets and culverts that could potentially be impacted b sediment-laden runoff on and near the project site. The following inlet protection measure will be applied on this project: BMP C220 Storm Drain Inlet Protection Alternate storm drain inlet protection BMP are included in Appendix C as a quick reference tool for the on-site inspector in the event the BMP listed above is deemed ineffective or inappropriate during construction to satisfy the requirements set forth in General NPDES permit(Appendix D).To avoid potential erosion and sediment control issues that may cause a violation of the NPDES Construction Stormwater permit,the Certified Erosion and Sediment Lead will promptly initiate the implementation of one or more of the alternate BMPs listed in Appendix C after the first sign that existing BMP are ineffective or failing. 3.1.8 Element#8—Stabilize Channels and Outlets Where site runoff is to be conveyed in channels or discharged to a stream or some other natural drainage point, efforts will be taken to prevent downstream erosion. The specific BMP for channel and outlet stabilization that shall be used on this project include: BMP C207: Check Dams 10