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itr COSTS OF VARIOUS SYSTEMS <br />(1991 prices, estimates from 3 contractors <br />who work regularly in Orono) <br />1. Complete Mound System <br />Parameters:3 cedroom home, medium perc race, <br />water taUaie less than 4 feet from <br />adequate sice area and slopes. <br />seasonal <br />surface, <br />System <br />Components: <br />3 - 1,000 gal. pre-cast concrece tanks <br />1 - sewage effluent pump <br />1 - high water alarm system <br />Electrical connections/components <br />Mound (estimate 200 c.y. washed sand, 15 c.y. <br />rock, piping, etc., 15 c.y. sandy loam, <br />100 c.y. topsoil) <br />Installation/miscellaneous piping, etc. <br />Estimated cost Range: $7,000 - $8,b00 <br />Holding Tank <br />System <br />Components: <br />1 - 2,000 gal. precast concrete tank <br />1 - high water alarm system <br />1 - water meter <br />Installation/miscellaneous piping, etc. <br />Holding Tank Maintenance (Pump-Out) Costs: <br />Estimated $80-120 per 2,000 gallon truckload (most pump <br />trucks have 1,500 to 2,000 gallon capacity). <br />Scenario 1:Water use without laundry, short <br />using varied water conservation <br />estimated 35 GPO/person niniroun. <br />showers, <br />methods: <br />Scenario 2:Normal water use, with laundry, standard <br />showers, standard toilet flushing: estimated <br />75 GPD/person. <br />Assume a 3-person household: <br />Scenario 1:3 people X 35 gallons/day/person • 105 GPD; <br />2,000 gallon tank capacity divided by 105; <br />GPD - 19 days; 365 days/year divided by 19; <br />days/pumpout ■ 19 pumpouts/year; 19 <br />pumpouts/year x $100/pumpout — $l,900/yr <br />s $ 158/mo <br />Scenario 2:3 people X 75 gallons/day/person * 225 GPD; <br />2,000 gallon tank capacity divided by 225; <br />GPD * 9 days; 365 days/year divided by 9; <br />days/pumpout " 41 pumpouts/year; 41; <br />pumpouts/year x $l00/pumpout = $4,100/yr <br />= $ 342/mo <br />Estimated Coat Range: <br />maintenanee cost. <br />$1,000 - $1,500 plus holding tank <br />-i