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EXHIBIT #A <br />Work Order Number 10 <br />Spoonbill Marsh Industrial Wastewater Facility Permit Renewal <br />for <br />North Hobart Rd RO Water Treatment Plant <br />PROJECT UNDERSTANDING <br />Indian River County Utilities (IRCU) owns and operates a reverse osmosis (RO) water <br />treatment plant currently rated at 17.14 mgd maximum daily flow based on treatment <br />capacity, but currently limited to 11.44 mgd based on an industrial wastewater facility permit <br />for demineralized concentrate disposal rated for 2.0 mgd maximum daily flow. The existing <br />industrial wastewater facility permit 31-FLO166511=003 expires September 10, 2017, and <br />IRCU desires to renew the operating permit in a timely manner. The renewal application <br />and fees are due to be submitted to FDEP Southeast District 180 days in advance, or by <br />March 14, 2017. <br />The facility includes a brackish water wetland treatment and disposal site named Spoonbill <br />Marsh (D-003), where concentrate from the Hobart RO water treatment plant is transmitted <br />via a 16 -inch diameter pipe and blended with Indian River Lagoon water at ratios to achieve <br />compliance with Class III marine surface waters, then discharged to a 69+ acre marsh <br />(designated Class II Outstanding Florida Water body) before exiting through floway <br />breeches to the Indian River Lagoon, a Class III marine body. The site includes a river water <br />intake structure including debris baffle, static mixer, transmission piping, and series of four <br />man made ponds and runnels with upwelling structures and other .appurtenances. The <br />Spoonbill Marsh is located east of US Highway 1 and west of the Indian River Lagoon. <br />The permit allows for concentrate flow capacity to be increased from 2.0 mgd up to 3.0 mgd <br />(MDF) contingent upon demonstration of a net environmental benefit (NEB) is achieved, <br />defined as a net reduction of nutrients (nitrogen and phosphorus). The positive NEB has <br />been demonstrated every year since water flowed to the Marsh since 2010, and therefore, a <br />request for increase to 3.0 mgd willbe included in the permit renewal. <br />The following scope of services consists of preparing and submitting an operating permit <br />renewal and responding to requests for additional information from the Florida Department <br />of Environmental Protection. <br />SCOPE OF SERVICES <br />The scope of services will consist of collecting and reviewing the existing operating data <br />since the last renewal (5 -years) and operation of the Spoonbill Marsh system, preparation <br />and submittal of permit application including existing information furnished by IRCU <br />which will be updated as part of the application package, concentrate water quality, and <br />responding to FDEP requests for additional information (RFI). <br />P153 <br />