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ATTACHMENT 1 to WORK O&DER NO. 1 SUPPLEMENTAL VALUE ENGINEERING AND QUALITY CONTROL REVIEWS OF THE VORTEX TREATMENT SYSTEM DESIGN FOR THE NORTH , MAIN , AND SOUTH RELIEF CANALS 1 . PROJECT UNDERSTANDING The County is continuing to have a design prepared by Carter Associates , Inc . and its design sub-consultants ECT , Inc . and CDS Technologies , Inc . for pollution control systems in the Main Relief Canal , South Relief Canal , and North Relief Canal . The major components of the design for each canal includes floating boom system , tilting weir (South and North Canal only) , secondary bar screen , climber screens , wash down system , debris removal system , dewatering system , canal stabilization and erosion control , prefabricated building , and vortex units . 2 . BACKGROUND The County is interested in expanding the current scope of work of the independent analysis in the form of a value analysis and constructibility review of the design contract documents . The current authorization accounts for reviews at the 30 percent and 75 percent complete submittal packages . As requested by the County , the additional scope of work will include a value analysis and constructibility review activity that will be performed on both the 50 percent and 90 percent complete contract documents (drawings and technical specifications ) . The value analysis activity will provide both potential construction and life cycle cost savings by developing alternative approaches to construction details , specifications and material selection . The value analysis and constructibility review will be performed on the following specialty design disciplines : Civil Mechanical Electrical Instrumentation/Process Control The value analysis and constructibility review will not be performed on the structural design discipline . The constructibility review will identify those areas in the documents , which could potentially cause field problems and delays during the construction phase . The constructibility review comments will potentially improve the quality of the contractors ' bids on this project .