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a. Summary Section <br /> This project proposes more than 5,000 sf of new and replaced impervious surface, and less than <br /> 5,000 sf of new and replaced pollution generating hard surface. This project intends to address <br /> minimum requirements 1-9. The Drainage plan provides details on the stormwater design for this <br /> project. <br /> b. Performance Standards and Goals <br /> This project's bioretention facility calculations provided by WWHM2012 indicates that this <br /> project meets the low impact development performance standard. <br /> c. Low Impact Development Features <br /> This project will feature a bioretention facility designed to meet the low impact development <br /> performance standard. <br /> d. Flow Control System <br /> Flow control will be provided by the proposed bioretention facility. WWHM2012 calculations <br /> have been provided in this report. <br /> e. Water Quality System <br /> NA-The proposed bioretention facility meets the requirements of water quality systems, <br /> however water quality treatment is not required as a part of this project's design. <br /> f Conveyance System Analysis <br /> Dorn Ave appears to have a conveyance system that will be used as the route of overflow for this <br /> project's bioretention facility. This project's overflow route will discharge to the 8"PVC <br /> stormwater pipe located within Dom Ave. The 8"pipe discharges to a 12"pipe,that then <br /> discharges to n 18"pipe that intersects Dorn Ave.the discharge of the 18"pipe flows into a 36" <br /> pipe that outfalls to North Creek. The conveyance system appears to be adequate. <br /> 3.1.6 Preparation of Construction Stormwater Pollution Prevention Plan (SWPPP),Vol 1, <br /> Section 3.1.6 <br /> A construction stormwater pollution prevention plan has been included in this report with <br /> elements shown on the TESC plan. <br /> 3.1.7 Completion of Stormwater Site Plan,Vol. 1, Section 3.1.7 <br /> A stormwater site plan has been prepared showing the locations of all proposed drainage <br /> elements. <br /> 2.5.2 Minimum Requirement#2: Construction Stormwater Pollution Prevention (SWPP) <br /> The construction stormwater pollution prevention plan has been included in this report. Relevant <br /> elements include temporary construction entrance, silt fence, and straw wattles. <br /> 2.5.3 Minimum Requirement#3: Source Control of Pollution <br /> Source control BMP's will be implemented as necessary during the construction and operation <br /> phases of this project.These BMPs include BMP C151: Concrete Handling,BMP C153: <br /> Material Delivery, Storage and Containment,BMP Cl 54: Concrete Washout Area.A spill <br /> response kit must be located on site. <br /> 12 <br />