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Exhibit A <br />to Administrative Order No. 58-21-56-F <br />{00398970;5}  <br />City of Eugene SDC Methodology Fee Schedule & Formulas, Page F-6 <br /> <br /> <br />1.3 Wastewater System Cost of Service: <br /> <br />1.3.1 Local Wastewater System Cost of Service <br /> <br />Determination of Flow Estimation Formula for Residential Development <br /> <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 gallons <br />per month. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Gallons per Month <br />8000 <br />7000 <br />6000 <br />5000 <br />4000 <br />3000 <br />2000 <br />1000 <br />0 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />370 1195 1977 2780 4000 <br /> <br />0 816 1585 2382 3280 <br /> <br />Total Are a Li ving Space <br />Projected <br />Sampled Actual Data <br /> <br /> <br />Base Flow <br />Intercept, <br />Gal. / Month <br /> <br />3,946 <br /> <br />Slope <br />0.951 gal/mo/sq ft <br />Gal. / Day (GPD) <br />--30 day month-- <br /> <br />132 <br /> <br />Days per Month <br /> <br />30 <br />Cost per Gal/Day $3.5030 Slope / 30 Days 0.032 <br />Base Charge = <br />GPD x Cost per Gal. $462.40 <br /> <br />Cost per Gal/Day $3.5030 <br /> Cost per sq ft = <br />Daily usage factor x Cost per <br />Gal. <br /> <br />$0.1121 <br /> <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.