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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 <br />per month to square <br />foot of living area results in a <br />slope of 0.951 gallons per <br />month per square foot and a base flow per <br />dwelling unit of 3,946 gallons <br />per month. <br />8000 <br />7000 <br />6000 <br />5000 <br />GallonsperMonth <br />4000 <br />3000 <br />2000 <br />1000 <br />0 <br />370 1 1195 1 1977 2780 4000 <br />0 <br />816 1585 2382 <br />3280 <br />Total Area Living Space <br />Projected <br />�E <br />Sampled Actual Data <br />Base Flow <br />Intercept, <br />3,946 <br />GPD x Cost per Gal. <br />Slope <br />0.951 gal/mo/sq ft <br />Cost per sq <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 $462.40 plus an <br />additional charge of $0.1121 applied to the total proposed living space area of the <br />dwelling. <br />City of Eugene SDC Methodologies Fee Schedule &Formulas, Page F-6 <br />Methodology <br />