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GLINT CAR WASH - EVERETT <br /> STORMWATER REPORT <br /> 4110 <br /> Other Hard Surfaces (paving) <br /> 1. Full Dispersion in accordance with BMP T5.30 - Insufficient area for full dispersion <br /> 2. Permeable pavement in accordance with BMP T5.15- The existing fill and native Till soils <br /> are not suitable for stormwater infiltration. The presence of loose fills will require <br /> cement treatment of the site subgrades which will then render the existing subgrade too <br /> dense and shallow to allow infiltration. <br /> 3. Bioretention in accordance with BMP T7.30- The bioretention facility must have a minimum <br /> horizontal projected surface area below the overflow which is at least 5% of the area draining to <br /> it.—The existing fill and native Till soils are not suitable for stormwater infiltration. The <br /> presence of loose fills will require cement treatment of the site subgrades which will then <br /> render the existing subgrade too dense and shallow to allow infiltration. <br /> 4. Either: (The applicant shall evaluate both a and b for feasibility) <br /> a. Sheet Flow Dispersion in accordance with BMP T5.12, OR b. Concentrated Flow <br /> Dispersion in accordance with BMP T5.11 - Insufficient available vegetative flow path. <br /> No Stormwater Management measures are proposed for the project Other Hard Surfaces. <br /> Terraforma Design Group, Inc. <br /> Page 15 <br />