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discharge a significant amount of any pollutant, appropriate BMPs or design changes shall <br /> be implemented as soon as possible. <br /> • Maintaining an Updated Construction SWPPP-The Construction SWPPP shall be retained <br /> �. on-site or within reasonable access to the site. The SWPPP shall be modified or updated as <br /> necessary during construction. <br /> Section V: Source Control Plan <br /> Source control will be achieved by separating roof runoff from surface PGIS runoff to avoid <br /> contaminating clean runoff. In the Narbeck Creek basin only roof runoff and runoff from <br /> landscaped areas will be routed to the detention facility. In the Powdermill Gulch Creek basin, <br /> roof leaders will be kept separate from surface runoff to the maximum extent feasible until <br /> downstream of the water quality facility. <br /> Spill prevention plans will be in place onsite to avoid contamination of stormwater from spilled <br /> material. <br /> See Figure 1.1 —Activity Worksheet for additional information. <br /> Section VI: Special Reports and/or Studies <br /> Geotechnical Report by Terra Associates dated February 19, 2007 <br /> Section VII: Other Permits <br /> The following permits are required for the subject development: <br /> • Construction Stormwater General Permit - Washington State Department of <br /> Ecology. <br /> • Building Permit - City of Everett <br /> I <br /> 1 <br /> I <br /> I <br /> 6/1 6/2 01 1 Stormwater Site Plan Page 15 <br />