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1.3 Wastewater System Cost of Service: <br />1.3.1 Local Wastewater System Cost of Service <br />Determination of Flow Estimation Formula for Residential Development <br />Graphical comparison of water consumption per month to square foot of living area results in a <br />slope of 0.951 gallons per month per square foot and a base flow per dwelling unit of 3,946 <br />gallons per month. <br />Gallons per Month <br />8000 <br />7000 <br />6000 <br />5000 <br />4000 <br />3000 <br />2000 <br />1000 <br />0 <br />F <br />Base Flow <br />0.951 g ft <br />Intercept, <br />3 <br />Gal I Neon th <br />0.032 <br />Gal. I Day (GPD) <br />132 <br />- -34 day month- - <br />$0.0940 <br />Cost per GallDay <br />$2.9373 <br />Base Charge = <br />$337.72 <br />GPD x Cost p er Gal. <br />Slope <br />0.951 g ft <br />Days per Month <br />30 <br />Slope 134 Days <br />0.032 <br />Cost per GallDay <br />$2.9373 <br />Cost per sq ft = <br />D usage factor x Cost per <br />Gal. <br />$0.0940 <br />The implementation of this rate structure results in each new single family dwelling being <br />charged a local wastewater SDC that is comprised of a base rate of $387.72 plus an additional <br />charge of $0.0940 applied to the total proposed living space area of the dwelling. <br />City of Eugene SDC Methodologies Fee Schedule & Formulas, Page F -3 <br />... . . v ., • r r • r� a v v • y V •.I <br />0 816 1585 2382 3280 <br />Total Area Living space <br />Projected <br />Sampled Actual Data <br />