859 LOCUST ST 2022-07-20 - Laserfiche WebLink

Stormwater Pollution Prevention Plan 3.0 Construction Stormwater BMPs 3.1 The 13 BMP Elements This section provides a detailed description of the BMPs to be implemented based on the 13 required elements of the SWPPP. Alternate BMPs for each element are included in Appendix C as a quick reference tool for the onsite Inspector in the event the BMP(s)listed above are deemed ineffective or inappropriate during construction to satisfy the requirements set forth in the General NPDES Permit(Appendix D). To avoid potential erosion and sediment control issues that may cause a violation(s) of the NPDES Construction Stormwater permit(as provided in Appendix D),the Certified Erosion and Sediment Control Lead(CESCL)will promptly initiate the implementation of one or more of the alternative BMPs listed in Appendix C after the first sign that existing BMPs are ineffective or failing. 3.1.1 Element#1 —Mark Clearing Limits To protect adjacent properties and to reduce the area of soil exposed to construction,the limits of construction will be clearly marked before land-disturbing activities begin. In general,natural vegetation and native topsoil shall be retained in an undisturbed state to the maximum extent possible. The following relevant BMPs for this project include: BMP C 103: High Visibility Plastic or Metal Fence BMP C233: Silt Fence A fence will be constructed to delineate the clearing and grading limits of the project. The clearing limits will be flagged by a continuous length of survey tape, spray-painted asphalt, or fencing prior to construction. The clearing limits shall be maintained by the contractor/TESC supervisor for the duration of construction. 3.1.2 Element#2—Establish Construction Access Construction access or activities occurring on unpaved areas shall be minimized,yet where necessary, access points shall be stabilized to minimize the tracking of sediment onto public roads, and wheel washing, street sweeping, and street cleaning shall be employed to prevent sediment from entering state waters. A stabilized construction entrance will provide access to and from the project site via Locust Street. The following relevant BMPs for this project include: BMP C 105: Stabilized Construction Entrance/Exit 3.1.3 Element#3—Control Flow Rates In order to protect the properties and waterways downstream of the project site, stormwater discharges from the site will be controlled. In general, discharge rates of stormwater from the site Grandview Apartments Clubhouse SWPPP 5 March,2017