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Environmental Consulting & Technology, Inc . Specific assignments follow : <br /> 1 . Carter Associates , Inc . ( CAI ) —CAI shall provide project quality control <br /> services . The following CAI personnel are required to work on this <br /> project : <br /> a . Dean F . Luethje , P . E . <br /> 2 . Environmental Consulting & Technology ( ECT ) — ECT shall provide all <br /> preliminary engineering design and related work . The following ECT <br /> personnel are required to work on this project : <br /> a . Frank E . Marshall , P . E . , Ph . D . <br /> b . Robert Naleway, P . E . <br /> C , Lora Saunders , Associate Scientist <br /> Be GENERAL <br /> The pollution prevention projects covered by this Work Order are intended to <br /> remove pollutants (suspended solids in particular and to a lesser extent , nutrients ) and <br /> floating material from the waters of the Main and South Relief Canals . The projects ' <br /> purpose is to protect the water quality of the Indian River Lagoon and thereby aid in <br /> restoring the Lagoon ' s seagrass coverage . The proposed vortex treatment structures <br /> shall be located as far downstream in the canals as practical . <br /> co ENGINEERING SERVICES <br /> Task 1 - Preliminary Engineering Report - Prepare a preliminary engineering <br /> report . This report will primarily focus on vortex-type stormwater pollution <br /> removal devices , but it will also include preliminary engineering designs of <br /> floating boom systems . The first focus of the report is to expand the original <br /> investigation and analysis of vortex systems that was performed for the Master <br /> Plan . In accordance with this , continue the original investigation in more detail <br /> and verify that vortex-type stormwater pollution removal devices are applicable <br /> and recommended for the proposed application . If this further investigation <br /> reconfirms that they are an appropriate and recommended pollution control <br /> application , then expand the preliminary engineering report to include , but not be <br /> limited to : recommend a manufacturer ( performance specifications will be written <br /> around this manufacturer in a future Work Order) ; perform field inspections of <br /> representative installations and collect data on pollutant removal efficiencies of <br /> existing systems ; investigate potential installation locations along the Main and <br /> South Relief Canals and recommend a location in each canal ; determine <br /> whether tilting weir gate structures should be constructed adjacent to the <br /> proposed vortex structures to provide operational head and to provide canal <br /> drawdown capabilities in anticipation of a major storm event ; investigate vacuum <br /> trucks and discuss the types of vacuum trucks that are capable of cleaning the <br /> vortex structures (and similar structures such as baffle boxes , catch basins , etc . ) <br /> and the capital and yearly operating costs of each truck ; investigate potential <br /> conflicts with existing utilities ; recommend a floating boom manufacturer <br /> (technical specifications will be written around this manufacturer in a future Work <br /> F:\Pubhc Works\KeithM\Sto.mwater ProjectsTast IRC\Contracts\Consultant Contract with Carter & Associates\Wak Order No. 4 - Vortex <br /> Treatment Units\Work Order #4 - Latest Version .doc <br /> 2 <br />