Agenda - 06-02-2009 - 6c - Laserfiche WebLink

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Development and Infrastructure Concepts The early meetings of the Rogers Road Task Force addressed the manner in which new infrastructure such as sanitary sewer and additional road access could be provided in association with new developments, particularly on the Greene Tract. The Task Force also developed a set of guiding principles and recommendations. This section describes the findings of the Task Force prior to the community design workshop in June of 2008. Concepts for Sewer Extension Most of the Rogers Road study area is served with water by the Orange Water and Sewer Authority ( OWASA). Water lines extend eastward from Rogers Road. OWASA sanitary sewer has been extended into the southwestern part of the study area. OWASA policy is to utilize gravity flow rather than pumping stations. Pumps are not desirable because they may fail during storms and they involve operating costs for electricity and maintenance. In March 2007, as part of the Rogers Road Task Force discussions, OWASA staff presented a conceptual layout of a sanitary sewer network that could provide service to existing lots within the Rogers Road study area. The conceptual layout identifies new lines that would need to be constructed and an existing line extend- ed to provide gravity sanitary sewer service to existing lots. This includes extending the existing line from the southwest, a new line to Eubanks Road in the northeast and a new line to the west which could be provided in cooperation with the Town of Carrboro. Figure 4 on page 11 is the existing and conceptual sewer network plan for the study area. There is one concept for the Rogers Road study area with two versions ( A and B). Both rely on the extension of sewer mains into the northeastern terri- 110 1 tory of Carrboro. They differ in that Concept A serves the Neville Tract and the adjoining 24 acre Harris property from a new line to the north that ties onto the extension for the Orange County Landfill. Concept A has greater potential to facilitate subdivision of the Har- ris property. Construction is estimated to cost $ 2.9 million' in 2007 dollars. Concept B serves the same properties via a new line to the west. Construction is estimated to cost $ 2.5 million' in 2007 dollars. Neither Concept A or B serve properties off Sandberg Lane or 3 lots off Merin Road. Concept C shows how gravity sewer could be provided to those lots not served by A or B via a new line along Billabong Lane. Billabong Lane is beyond the study area. A third concept,Concept C, would add $1.3 million' in 2007 dollars to the construction cost of Concepts A or B and extend service to the properties in the southeastern corner of the study area. In accordance with existing OWASA policies, benefiting properties would bear the cost of extending water and sewer lines. The Task Force also reviewed the assessment process for neighborhoods pursuing water and sewer service. Task Force members expressed great concern over the ability of existing homeowners to bear the cost of installing main lines, hooking up to services and paying utility bills, thereby decreasing the affordability of low - cost housing that currently exists in the study area. Z The proposed sewer and water lines are preliminary configurations provided by OWASA (Orange Water and Sewer Authority). If the Town decides to pursue these or other concepts, additional engineering and professional services will be needed to provide site -level detail and overall determination of project feasibility. These estimates do not include the additional cost for connecting individual properties to the sewer system.