8407 BROADWAY STADIUM STORAGE 2017-06-20

Technical Information Report July 2015 Everett Self-Storage 5.0 Construction Stormwater Pollution Prevention --SWPP The following section provides a detailed description of all possible BMPs applicable for use on the proposed project. These are based upon the 12 required elements of the SWPPP as outlined by the Stormwater Management Manual for Western Washington, Washington State Department of Ecology (Feb 2005) and Chapter 2 — Construction Stormwater Pollution Prevention Plans of the City of Everett SMM. A comprehensive description of each BMP is listed in Appendix A as a quick reference tool for the SWPPP reader. While each BMP listed below may not be listed in the TESC Plan, a comprehensive listing is provided so that the Certified Erosion and Sediment Control Lead can initiate the implementation of back-up BMPs at the first sign that additional BMPs may be needed. 5.1 The 12 BMP Elements 5.1.1 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. Typically, trees that are to be preserved, as well as all sensitive areas and their buffers, are clearly delineated, both in the field and on the plans. In general, natural vegetation and native topsoil shall be retained in an undisturbed state to the maximum extent possible. However, there are no critical areas or significant trees located within the project boundary. The BMPs relevant to marking the clearing limits that will be applied for this project include: • Clearly designate clearing limits prior to construction. • High Visibility Plastic or Metal Fence (BMP 103) • Silt Fence (BMP C233) 5.1.2 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. All wash wastewater shall be controlled on-site. • Utilize existing driveway entrance and pavement off of Broadway as construction entrance. • Construct a temporary construction entrance only if necessary or directed by the City inspector. • Stabilized Construction Entrance (BMP C105) • Construction Road/Parking Area Stabilization (BMP C107) 14114 Everett Storage TIR Revised 0715.doc 33 is