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West Coast Stomi Inc. <br />Storm Water and Environmental Solutions <br />County of Orange, OC Public Works <br />Automatic Retractable Screen Excluders, Connector Pipe Screen Full Capture Trash <br />Systems, and Catch Basin Inserts <br />RFP# 080-591792 <br />West Coast Storm Connector Pipe Screen <br />Equipment Design and Specification Report <br />(Information provided to the City as requested in the RFQ documents under <br />Attachment A. Scope of Work) <br />Overflow or bypass flow capacity. The bypass structure must pass the maximum catch <br />basin flow in order to provide proper flow protection. The West Coast Storm CPS is designed <br />to meet this requirement established by the California Regional Water Quality Control <br />Board, Los Angeles Region Approved County of Los Angeles Connector Pipe Screen <br />Design. For an example of maximum 10-year and 1-year flows see the table provided see <br />below. <br />V-depth <br />(ft) CB <br />Width Max 10-yr. <br />flow rate <br />(cfs) Bypass <br />Height <br />(in) Freeboard <br />(in) Screen <br />Height <br />(in) Max 1-yr. <br />flow rate <br />(cfs) Clearance <br />(in) Screen <br />Length (ft) Screen <br />Capacity <br />(cfs) <br />3.5 3.5 2.8 6.0 6.0 18• 0.6 10.0 1.5 1.5 <br />3.5 7.0 5.3 6.0 6.0 18 1.2 10.0 2.9 2.9 <br />3.5 10.0 7.5 6.0 5.0 18 1.7 10.0 3.8 3.8 <br />3.5 14.0 10.0 8.0 0 18 2.2 8.0 3.1 3.1 <br />3.5 21.0 13.9 8.0 0 18 3.1 8.0 4.3 4.3 <br />3.5 28.0 17.3 12.0 0 18 3.8 4.0 3.9 3.9 <br />Now Xesuits were obtained from the California Regional Water Quality Control Board, Los Angeles Region Approved County of Los Angeles <br />Connector Pipe Screen Design Technical Report, page 12. <br />Page 20 of 41 <br />654 South Lincoln Avenue, San Bernardino, CA 92408 - Telephone 909.890.5700 Facsimile 909.890.5988 <br />California General A/FIAZ Contractor License Number: 888152 <br />25C-45