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1 <br />West Coast Storm,Inc. <br />Storm Mater 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) <br />CB <br />Width <br />Max 10 -yr. <br />flow rate <br />(cfs) <br />Bypass <br />Height <br />(in) <br />Freeboard <br />(in) <br />Screen <br />Height <br />(in) <br />Max 1 -yr. <br />flow rate <br />(cfs) <br />Clearance <br />(in) <br />Screen <br />Length (ft) <br />Screen <br />Capacity <br />(cfs) <br />3.5 <br />3.5 <br />2.8 <br />6.0 <br />6.0 <br />18• <br />0.6 <br />10.0 <br />1.5 <br />1.5 <br />3.5 <br />7.0 <br />5.3 <br />6.0 <br />6.0 <br />18 <br />1.2 <br />10.0 <br />2.9 <br />2.9 <br />3.5 <br />10.0 <br />7.5 <br />6.0 <br />5.0 <br />18 <br />1.7 <br />10.0 <br />3.8 <br />3.8 <br />3.5 <br />14.0 <br />10.0 <br />8.0 <br />0 <br />18 <br />2,2 <br />8.0 <br />3.1 <br />3.1 <br />3,5 <br />21.0 <br />13.9 <br />8.0 <br />0 <br />18 <br />3.1 <br />8.0 <br />4.3 <br />4.3 <br />3.5 <br />28.0 <br />17.3 <br />12.0 1 <br />0 <br />18 <br />3.8 <br />4.0 <br />3.9 <br />3.9 <br />Note: Results 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/HAZ Contractor License Number; 888152 <br />