145 ALVERSON BLVD 2018-04-25 - Laserfiche WebLink

The purpose of this document is to describe the proposed construction activities and all temporary and permanent erosion and sediment control measures, pollution prevention measures, inspection/monitoring activities, and recordkeeping that will be implemented during the proposed project. The objectives of the TESC Plan and SWPPP are to: • Implement BMPs to minimize erosion and sedimentation from rainfall at construction sites, and to identify, reduce, eliminate, or prevent the pollution of storm water. • Prevent violations of surface water quality, groundwater quality, or sediment management standards. This includes the protection of neighboring surface water bodies, as well as the city-maintained storm water collection system. � Prevent adverse water quality impacts, including impacts to beneficial uses of the receiving water by controlling peak rates and volumes of storm water runoff at outfalls from the subject site and downstream of outfalls. The TESC Plan and SWPPP were prepared based on the requirements set forth in the Ecology SWPPP Template and the Construction Storm Water General Permit, Storm Water Management Manual for Western Washington (SWMWW 2005). The report is divided into seven main sections with several appendices that include storm water related reference materials. The topics presented in each of the main sections include the following: • Section 1— Introduction: This section provides a summary description of the project, and the organization of the TESC Plan Narrative/SWPPP document. • Section 2— Site Description: This section provides a detailed description of the existing site conditions, proposed construction activities, and calculated storm water flow rates for existing conditions and post-construction conditions. • Section 3— Construction BMPs: This section provides a detailed description of the BMPs to be implemented based on the 12 required elements of the TESC Plan Narrative/SWPPP (SWMWW 2005). • Section 4— Construction Phasin� and BMP Implementation: This section provides a description of the timing of the BMP implementation in relation to the project schedule. TESC Plan and SWPPP 2 June 2015 American Legion Memorial Park Page 3