Agenda - 03-26-2009 - 3b1 - Laserfiche WebLink

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Preliminary Rogers Road Sewer Concepts June 22, 2007 Page 3 The table includes project costs only. Additional per lots costs for connecting individual properties to the sewer system are discussed in the section below. Estimated Project Costs of Three Sewer System Concept Plans for Chapel Hill's Rogers Road Study Area Concept Concept Concept Concepts Concepts A B C A +C B + C Engineering Design $2201000 $1901000 $1001000 $3201000 $2901000 Construction $211801000 $119001000 $9701000 $311501000 $218701000 Construction Administration $1101000 $1001000 $501000 $1601000 $1401000 Construction Inspection $1101000 $1001000 $501000 $1601000 $1401000 Contingency $2601000 $2301000 $1201000 $3801000 $3401000 Totals $2,880,000 $2,520,000 $1,290,000 $4,170,000 $3,780,000 Individual Connection Costs — As noted, the preceding table only includes estimates of constructing the sewer collection system itself. Additional per lot costs for connecting to the new system would include the following: OWASA Service Availability Fee — This one -time connection fee represents the proportional cost of "buying in" to OWASA's existing facility infrastructure (main sewer lines, treatment plant, etc.) and is assessed according to the square footage of residential properties. The sliding scale of availability fees that will be effective as of October 1, 2007 ranges from $2,441 for homes of less than 1,300 square feet to $4,514 for homes of greater than 3,800 square feet. Fees for multi - family residences will be $2,645 per unit. A different scale of availability fees applies to non - residential sewer connections. Private Plumbing Costs — The pipe that extends from a building to the OWASA sewer line is called a lateral. Unlike pipes in OWASA's system, the lateral is part of the private property served by the public sewer. Installation and maintenance of the lateral is the responsibility of the property owner, who typically contracts with a private plumber for installation. Costs depend on several factors, especially the distance from the building to the OWASA sewer line. A recent telephone survey of several local plumbers indicated prices in the range of $25 per foot. That is, installation of a 50 -foot lateral would cost approximately 51,250, a 100 -foot lateral would cost approximately $2,500, and so forth. Sewer Tap Charge — This fee is for physically connecting the private sewer lateral to the OWASA sewer line. The base tap charge, effective as of October 1, 2007, will be $318.