Laserfiche WebLink
e0timated electric charge of 8¢ per kilowatt hour, and assuming <br />2 HP is equal to two kilowatts, the estimated increase in electrical <br />cost per dwelling unit for 15 minutes of pump operation per day <br />' is 44 per day, or $1.20 per month. <br />An estimated construction cost for the grinder pump/manifolded <br />' small force main alternative is included in the following section <br />of this report. <br />Cost Estimates <br />' A. Gravity Collection System/Conventional Pumping Station Alternative <br />(See Exhibit A) <br />1. Basis of unit price estimates: <br />a. 8" 0 PVC Gravity sanitary sewer with average depth of 6' <br />normal construction use $15.00/foot add for dewater/rock <br />excavation (+) $25.00/foot add for street, driveway <br />and drainage restoration within 70' wide right-of- <br />way (+) $25.00/foot <br />Total = $65.00/ft <br />b. Standard manholes - $1200.00 each <br />(allowance for dewatering and rock excavation is included <br />in gravity sewer unit price) <br />c. 4" 0 service laterals from gravity main to right-of-way <br />line <br />normal construction use $250.00/lateral add for rock <br />excavation (dewatering included in gravity sewer unit <br />price) (+) $500.00 <br />Total = $750.00 each <br />Units Description Unit Cost Total Cost <br />18,710 LF <br />8flo PVC Gravity Sanitary Sewer <br />65.00 <br />1,216,150 <br />1,200.00 <br />84,000 <br />70 <br />Manholes <br />750.00 <br />281,250 <br />375 <br />4"0 Service Laterals <br />2 <br />Conv. Pump Stations w/FM <br />50,000.00 <br />100,000 <br />2 <br />Duplex Grinder Pump Stations <br />15,000.00 <br />30,000 <br />1070 LF <br />21" 0 PVC Force Main <br />5.00 <br />5,350 <br />$1,716,750 <br />Sub -total ............................... <br />15% Contingencies .....................• <br />$ 257_,513 <br />-9- <br />