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G. Utilities Services <br />11:37 1. Septic to Sewer Update/Presentation <br />a.m. (memorandum dated February 29, 2016) <br />76-82 <br />---------------------------------------------------------------------------------------------------------- <br />Utility Services Director Vincent Burke, joined by Mr. Richard <br />Hicks, Florida Department of Environmental Protection, <br />(FDEP) Ground Water Management Section; and Dr. Ming Ye, <br />Department of Scientific Computing Florida State University, <br />gave a Septic to Sewer Update/ Presentation. They reviewed in <br />the presentation, the Ranking Matrix done in-house by the <br />Indian River County Department of Utility Services, <br />Groundwater Modeling and FDEP Wells Installations in the <br />south part of Indian River County, and the ArcGIS-based <br />Nitrogen Load Estimation Toolkit (ArcNLET), a numerical <br />modeling toolkit. <br />Director Burke stated there were two Sewer Feasibility Studies <br />performed targeting different geographical areas in the <br />unincorporated Indian River County. One study, <br />"Summerplace" is located at County Road 510 and State Road <br />AIA and the second study "North Sebastian Area". He added <br />that researchers were also studying the effects of Onsite Sewage <br />Treatment and Disposal Systems (OSTDS aka Septic Tank) <br />nutrient loadings as a potential contributor of harmful algal <br />blooms in the Indian River Lagoon, confirming high levels of <br />Nitrogen in the groundwater and surface water due to human <br />waste. <br />Mr. Hicks went over a software tool called the ArcNLET model <br />that looks at the actual nitrogen load seepage into ground water <br />and from that groundwater seepage into surface water whether <br />it's a canal or the lagoon. <br />Dr. Ming Ye detailed on how the ArcNLET software could <br />detect the nitrogen loading to each individual water body. <br />Mr. Hicks indicated that monitor wells were installed at areas of <br />the County that could be potentially higher in nitrogen <br />concentrations and associate them to areas of lower nitrogen <br />concentrations in order to tweak the model. <br />The Board sought and received information from Mr. Hicks <br />and Dr. Ming Ye on the FDEP Calibration Work, of which the <br />County had been assisting them in the monitoring of the wells. <br />The Chairman called a recess at 12:35 p.m., and reconvened the <br />meeting at 12:44 pan., with all members present. <br />Board of County Commission Minutes Page 8 <br />March 8, 2016 <br />