FIGURE 6 <br /> Sto rmwate r S ste m <br /> Y <br /> System Value <br /> Level of Service Replacement costs <br /> (minus) <br /> Impact Measurement Assessable costs <br /> ~ Impervious surface <br /> (equals) <br /> SDC eligible costs <br /> Formula: <br /> COSt Of Service (PER ACRE) <br /> SDC eligible costs Cost per <br /> impervious <br /> Acres of acre <br /> impervious surface <br /> Formula: <br /> COSt Of Service (PER SQUARE FOOT) <br /> Cost per Cost per <br /> impervious acre square foot of <br /> = impervious <br /> Square feet per acre surface <br /> <br /> NOTE: The cost per unit of measure, can be found in the current adopted SDC fee schedule in <br /> Appendix G. <br /> <br /> May 1, 1997 City of Eugene SDC Methodology Page E-2 <br /> <br />