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SOUNDVIEW TECHNOLOGY CENTER EVERETT, WA <br /> Name Vault 3 <br /> Width 22 ft. <br /> Length 376 ft. <br /> Depth: 16 ft. <br /> Discharge Structure <br /> Riser Height: 15 ft. <br /> Riser Diameter: 12 in. <br /> Orifice 1 Diameter: 1.07 in. Elevation: 0 ft. <br /> Orifice 2 Diameter: 1.72 in. Elevation: 10 ft. <br /> Orifice 3 Diameter: 1.05 in. Elevation: 11.25 ft. <br /> Stream Protection Duration <br /> POC #1 <br /> The Facility PASSED <br /> The Facility PASSED. <br /> Vault#5 <br /> Name Bldg C <br /> Bypass: No <br /> GroundWater: No <br /> Pervious Land Use acre <br /> C, Forest, Steep 0 <br /> Pervious Total 0 <br /> Impervious Land Use acre <br /> Roof Tops Flat 2.68 <br /> Impervious Total 2.68 <br /> Basin Total 2.68 <br /> Name Vault 5 <br /> Width 22 ft. <br /> Length 136 ft. <br /> Depth: 16 ft. <br /> Discharge Structure <br /> Riser Height: 15 ft. <br /> Riser Diameter: 12 in. <br /> Orifice 1 Diameter: 0.53 in. Elevation: 0 ft. <br /> Orifice 2 Diameter: 0.87 in. Elevation: 10.9 ft. <br /> Orifice 3 Diameter: 0.53 in. Elevation: 12.15 ft. <br /> Stream Protection Duration <br /> POC #2 <br /> The Facility PASSED <br /> The Facility PASSED. <br /> As can be seen in the WWHM output, modeled vaults with dimensions of 22'x376'xl5.0' (vault#3) plus <br /> 22'xl 36'xl 5.0' (vault#5) meets and exceeds the detention requirements for Basin B. <br /> SEPTEMBER 23, 2022 STORMWATER DRAINAGE REPORT PAGE 25 <br />