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Comprehensive Plan <br />Sanitary Sewer Sub -Element <br />The study evaluated the total nitrogen (TN) and total phosphorus (TP) that could be <br />removed from the environment by septic to sewer conversion and calculated a cost <br />per pound for TN removal for each of the top 35 ranked subdivisions. TP <br />calculations were removed from the analysis since most technical references and studies <br />show that phosphorus is adequately removed by a properly functioning septic <br />system. Septic to sewer conversion projects for the top 35 subdivisions were then ranked <br />for the highest benefit to cost ratio, with the number 1 ranking_ providingthe erg <br />benefit compared to the conversion project cost (see Table 3.A.3.1). <br />TABLE 3.A.3.1 - INDIAN RIVER COUNTY LIST OF SUBDIVISIONS FOR SEPTIC TO <br />SEWER CONVERSION WITHIN UNINCORPORATED COUNTY; AND CITY OF <br />SEBASTIAN, AND TOWN OF ORC441D <br />Ali <br />Subdivislon Name <br />Rok <br />SubdWon Name <br />,fin <br />Subdivision Name <br />1 <br />Floravon Shores Subdivision <br />14 <br />Sebastian Highlands Unit 02 <br />24 <br />Dales Landing Subdivision <br />Replat PG 2 <br />Tropic Colony Subdivision <br />2 <br />Sebastian Highlands Unit 02 Collier <br />14 <br />Hobart Landing Unit 3 <br />24 <br />�1*' <br />3 <br />Sebastian Highlands Unit 05 <br />16 <br />River Shores Estates Units 1- <br />29 <br />Winter Grove Subdivision <br />4 <br />4 <br />Hobart Landing Unit 2 <br />17 <br />Pine Tree Park Units 1-4 <br />29 <br />Kanawah Acres <br />5 <br />Orchid Island No. 2 <br />17 <br />Indian River Heights Units 1 <br />31 <br />Tropic Colony Subdivision <br />5 <br />Sebastian Highlands Unit 04 <br />17 <br />Sebastian Highlands Unit 02 <br />32 <br />Halleluiah Acres <br />Re lat PG 3 <br />7 <br />Orchid Island No. 1 <br />20 <br />Rain Tree Corner Subdivision <br />33 <br />Little Portion Subdivision <br />Re lat OF <br />8 <br />Sebastian Highlands Unit 01 <br />21 <br />Diana Park Subdivision <br />34 <br />Sebastian Highlands Unit 02 <br />Replot PG 4` <br />8 <br />Ambersand Beach Sub No 1 & 2 <br />22 <br />Verona Estates Subdivision <br />35 <br />Heritage Trace at Hobart' <br />10 <br />Sebastian Highlands Unit 03 <br />22 <br />Sebastian Highlands Unit 13; <br />Little Portion Subdivision <br />Re lat Of <br />11 <br />Sebastian Highlands Unit 02 <br />24 <br />Hobart Landing Unit 1 <br />11 <br />Naranma TR Shellmound Bch Replat of POR <br />1 24 <br />Hallmark Ocean Subdivision <br />13 <br />Orchid Isle Estates Subdivision <br />1 24 <br />Stevens Park Unit 1 & 2 <br />• These communities are included in the evaluation due to their proximity to one or more top 30 ranked communities. <br />" It is recommended that the Amos subdivision not be considered in the capital improvement program. Ranking results are due to an <br />anomaly in the methodology. <br />Community Development Department <br />Indian River County 24 <br />Appendix A <br />