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ATTACHMENT A <br /> INDIAN RIVER COUNTY DEPARTMENT OF UTILITY SERVICES <br /> CENTRAL WASTEWATER TREATMENT FACILITY <br /> AND REGIONAL SLUDGE PROCESSING FACILITY <br /> SCOPE OF SERVICES (Continued) <br /> Task 1 . 1 - Addition of Sodium Hypochlorite to RSF Scrubbers <br /> As recommended in the PBS&J Odor Control Study, the RSF scrubber system will be <br /> converted from a single stage scrubber to a two-stage scrubber utilizing sodium hypochlorite <br /> in the second stage . Included in this conversion will be the addition of a <br />sodium <br /> hypochlorite feed system and associated controls . <br /> PBS&J will support the addition of the sodium hypochlorite system up to a budget limit of 74 <br /> hours . <br /> Task 1 .2 - Weather Station Communication with Central WWTF PLC System <br /> IRC staff has procured a weather station to be mounted near the existing pretreatment <br /> structure . <br /> PBS&J will provide sketches , PLC programming and other technical support to integrate the <br /> data generated by the weather station into the existing PLC system . A budget of 48 hours is <br /> estimated to accomplish this task . <br /> Task 1 . 3 - Headworks Scrubber Process Improvements <br /> The Central WWTF utilizes a chemical scrubber to control odor emissions from the <br /> headworks process . Certain improvements to the operation and control of these scrubber <br /> processes may further improve scrubber efficiency. IRC staff will self perform all such <br /> improvements to the headworks scrubber system . <br /> PBS&J will provide sketches and other consultation to IRC staff in support of this effort up to <br /> a budget limit of 24 hours . <br /> Task 2 - Final Design <br /> IRC staff intends that certain odor control improvements be bid and constructed by a <br /> general contractor. PBS &J will prepare the contract documents in support of this <br /> construction effort as detailed in the following tasks . <br /> For budgeting purposes , the following is a list of anticipated construction plans to be <br /> included in this final design effort : <br /> CAF/bwN:\Projects\IRCOUNTY\Continuing Wastewater Services\Central & South W WTP Odor Control\01 Proposals\l . I Proposals\ATTACHMENT A TO Central W WTF SCOPE 3-24- <br /> 032.doc <br /> Inst Revised 3/24/2003 4: 38 PM <br /> 2 <br />