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November 2013 <br />MM # 1351 <br />SANITARY SEWER FEASIBILITY STUDY & REPORT <br />NORTH SEBASTIAN AREA <br />inch and 6 -inch vacuum sewer mains and a central main vacuum station along North Central <br />Avenue. <br />Study Area #2 <br />Study Area #2 with a vacuum collection system is shown in Exhibit 4. Existing sanitary sewer is <br />shown in green and the proposed vacuum collection sewer system shown as solid heavy green <br />and orange lines representing 4 -inch vacuum sewer mains and 6 -inch vacuum sewer mains, <br />respectively. The main central vacuum station is shown in purple at Kelso Place and Bay Street. <br />Exhibit 4 shows that all of the existing and future users of a sewer system are served by the <br />conceptual vacuum collection system layout. High groundwater conditions are not a major concern <br />in Study Area #2. However, the relative shallow depth of the vacuum sewer mains and resultant <br />reduction in construction cost and damage to existing improvements are considerations when <br />compared with a conventional gravity sewer system. <br />Construction Cost Estimate <br />Masteller & Moler, Inc has utilized the exhibits and information provided by AirVac Systems and <br />performed a take -off of all construction items necessary to construct the proposed vacuum system. <br />The resulting construction quantities were multiplied by unit prices in order to establish the <br />estimated project cost. The unit prices were provided by an experience utility contractor named <br />Jobear / Warden Construction of Palm Bay, FL. This contractor has constructed numerous <br />centralized sewer projects in Indian River County and is familiar with the study area site conditions. <br />This information is shown on the next page included in this section of the report. The total <br />estimated project cost for a vacuum collection system to serve Study Areas #1 and #2 is <br />$6,600,000.00. <br />13 <br />