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1 . A new pretreatment structure (two (2) mechanically cleaned screens , <br /> Screening conveyor/compactor, bypass provisions manual screens) <br /> 2 . Common anaerobic selector tanks and mixers <br /> 3 . Common first anoxic tanks and mixers <br /> 4 . Aeration tanks/ basins utilizing fine bubble diffused aeration <br /> 5 . A concrete block blower building with louvers , roll - up dooi s and a bridge <br /> crane <br /> 6 . Retrofitting of existing oxidation ditch to fine bubble diffused aeration <br /> 7 . Common 2nd anoxic tanks and common re- aeration tanks <br /> S . Clarifiers with RAS and WAS pumps <br /> 9 . Filters (Traveling bridge type) <br /> 10 . Chlorine contact basins and associated chlorine feed equipment <br /> 11 . Wetlands/ recirculation/ return pump station and force main (f rom discharge <br /> end and not from canals to the influent side of the wetlands) <br /> 12 . Emergency power generator in a building . A prefabricated concrete building <br /> is assumed as the basis of design in the scope <br /> 13 . New rotary drum thickener and associated equipment with polymer feed <br /> system located adjacent to the existing thickener (slab on grade) <br /> 14 . Instrumentation and controls with plant SCADA system modification <br /> B . Up to six sets of progress bidding documents (plans and specifications conforming to <br /> CSI format) and an associated construction cost estimate will be su mitted to the <br /> County for review at approximately the 30 % and 60 % levels of proje Nt completion . <br /> Engineering drawings and specifications will be prepared using Autc CAD Version <br /> 2000 or higher or Microstation and MS Word . Up to six sets (h rd copies) of <br /> progress plans and specifications and an associated construction cost estimate will be <br /> submitted to the County for review at approximately the 90 % level of project <br /> completion . County will provide Division 0 Bidding and contract documents . <br /> IRC West WWTF Scope Page 4 613/2005 <br /> CADocuments and SettingsWonlevy\Iocal SettingsVemporary Internet Fi1es1OLK20 WWTPEXPNASION Design Scope-ft Revised Gy RRM .doc <br />