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ATTACHMENT B <br /> SCOPE OF WORK <br /> INDIAN RIVER COUNTY <br /> SOUTH COUNTY WASTEWATER TREATMENT FACILITY <br /> RE-RATE AND PERMIT RENEWAL <br /> BACKGROUND <br /> The Indian River County (IRC) Board of County Commissioners purchased the GDU Highlands <br /> Wastewater Treatment Plant (WWTP) in October 1993 to provide wastewater treatment service <br /> to the South County Service Area . Expansion of the facility was initiated in 1996 to increase <br /> plant capacity to 2 . 0 million gallons per day (mgd) annual average daily flow (AADF) . <br /> Construction was completed in October 1999 and included odor control for the headworks, new <br /> anaerobic/ first anoxic basin, conversion of existing tankage to second anoxic basin with re- <br /> aeration zone, new oxidation ditch, two new secondary clarifiers, two new traveling bridge <br /> filters, two new chlorine contact basins, upgrades to existing electrical and instrumentation <br /> systems including an emergency generator system, and refurbishment of the plant <br /> administration/ operations building. The facility produces effluent to advanced wastewater <br /> treatment (AWT) standards for disposal to IRC Is West Regional wetland site . Additionally, <br /> treated effluent is disposed of at the Indian River Club golf course . Backup effluent disposal <br /> includes onsite percolation ponds with storage capacity of 6 million gallons . Design of the tanks <br /> and treatment process considered ultimate facility expansion to 4 . 0 mgd in a future project. <br /> Development in IRC and adjacent counties has increased dramatically in the past year . Prior to <br /> ultimate expansion at the facility, IRC has requested an intermediate expansion, if possible, of <br /> the facility in an effort to realize the existing tankage and process capacity . The intermediate <br /> expansion would allow additional development capacity while design, permitting, and <br /> construction of the plant tankage can be undertaken. <br /> SCOPE OF SERVICES <br /> CDM will perform the following task services to prepare the applicable permit application for <br /> re-rate and renewal of the South County Wastewater Treatment Facility permit. <br /> TASK 1 . 0 ENGINEERING ANALYSIS AND REPORT <br /> The following subtasks will be performed under this task . <br /> Subtask 1 . 1 CDM will review available data and information for the facility including the <br /> June 1996 Preliminary Design Report, project record drawings, existing plant <br /> operating permit (Florida Department of Environmental Protection (FDEP) No . <br /> FLA010435) , and recent monthly operating reports for the facility . <br /> Subtask 1 . 2 CDM will perform a hydraulic analysis of existing facilities to determine plant <br /> capacities by unit process . CDM will evaluate potential modifications or <br /> additions to existing equipment, process, or appurtenances to gain additional <br /> capacity without construction of new tankage . <br /> A-1 mh2015.doc <br />