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• <br />• <br />Everett Dental Office - TIR <br />MR 2 — SWPPP NARRATIVE <br />April 2017 <br />The project will comply with the twelve (12) SWPPP elements during construction. All <br />erosion and sediment control measures shall be governed by the requirements of the City <br />of Everett. An Erosion and Sedimentation Control plan has been prepared to assist the <br />contractor in complying with these requirements and designed to prevent sediment - <br />laden run-off from leaving the site during construction. Refer to Appendix C for Erosion <br />Control plans and details. <br />The erosion potential of the site is influenced by four major factors: soil characteristics, <br />vegetative cover, topography, and climate. Erosion/ sedimentation control is achieved <br />by a combination of structural measures, cover measures, and construction practices that <br />are tailored to fit the specific site. <br />Construction Sequence and Procedure <br />Prior to the start of any grading activity upon the site, all erosion control measures, <br />including installation of a stabilized construction entrance, shall be installed in <br />accordance with the construction documents. <br />The best construction practice will be employed to properly clear and grade the site and <br />to schedule construction activities. The planned construction sequence for the <br />construction of the site is as follows: <br />1. Flag or fence clearing limits. <br />2. Install catch basin protection if required. <br />3. Grade and install construction entrance(s). <br />4. Install perimeter protection (silt fence, brush barrier, etc.). <br />5. Construct sediment ponds and traps. <br />6. Grade and stabilize construction roads. <br />7. Construct surface water controls (interceptor dikes, pipe slope drains, etc.) <br />simultaneously with clearing and grading for project development. <br />8. Maintain erosion control measures in accordance with City of Everett standards <br />and manufacturer's recommendations. <br />9. Relocate erosion control measures or install new measures so that as site <br />conditions change the erosion and sediment control is always in accordance with <br />the City of Everett Erosion and Sediment Control Standards. <br />10.Cover all areas that will be unworked for more than seven days during the dry <br />season or two days during the wet season with straw, wood fiber mulch, compost, <br />plastic sheeting or equivalent. <br />11.Stabilize all areas that reach final grade within seven days. <br />12.Seed or sod any areas to remain unworked for more than 30 days. <br />13. Upon completion of the project, all disturbed areas must be stabilized and BMPs <br />removed if appropriate. <br />The Concept Group <br />