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West Coast S gn-n,tnc. <br />Storm {rater and Environmental SOlntions <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 />A. Description/Design/Engineering. The West Coast Storm.Connector Pipe Screen (CPS) <br />Device meets the full trash capture definition set forth by the Los Angeles Regional Water <br />Quality Control Board. West Coast Storm, Inc. (WCS) has successfully performed three <br />County of Los Angeles contracts requiring Connector Pipe Screen (CPS) installations. All <br />CPS devices were fabricated and installed per the Los Angeles Regional Water Quality <br />Control Board approved specifications for the County of Los Angeles Connector Pipe Screen <br />Device Full Capture System. See Certifications at the end of this section. <br />Additionally, the West Coast Storm Connector Pipe Screen is San Francisco Bay Water <br />Board Certified Device for frill capture. See Certifications at the end of this section. <br />Description and Design Elements. <br />General. The CPS prevents trash and debris from entering the storm drain lateral system by <br />keeping the trash and debris inside the catch basin. <br />West Coast Storm CPS Design. The CPS device is designed to retain all trash larger than <br />5 mm in the catch basin, thereby meeting the Regional Water Quality Control Board's <br />definition of full capture in both Los Angeles and San Francisco Regions. <br />1) The CPS is designed and installed to maximize the trash capture volume of the catch <br />basin. <br />2) The CPS bypass accommodates the catch basin design capacity if the screen becomes <br />clogged. <br />3) The CPS does not interfere with the operation of the West Coast Storm Screen ARS <br />devices. <br />4) The CPS is designed with a structural integrity to withstand a force of standing water <br />(62.4lb/ft3) within the catch basin area if the screen is 100% clogged. <br />5) The center horizontal brace further secures the screen to the frame and add additional <br />strength against severe water force. <br />6) The CPS is designed with a structural frame built to withstand a significant amount of <br />force. The 5mm mesh is secured to the framework further enhancing the structural <br />integrity of the unit. <br />Page 2 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 />25C-39