EXHIBIT A .(page 5 of 6) <br />Existing and increased plant Local Equity <br />related to biochemical oxygen .demand Cost per pound of <br />= biochemical oxygen demand <br />Design biochemical oxygen demand <br />Existing and increased plant Local Equity <br />related to total suspended solids Cost per pound <br />_ of suspended solids <br />Design suspended solids <br />Calculations: <br />$15,509,000 <br />_ $0.3'l7 (per gallon of average daily flow) <br />49, 000, 000 <br />$30,313,000 + $6,170,000 <br />_ $0.745 (per gallon of average daily peak flow) <br />49 000, 000 <br />$13,:394, 000 <br />$202.94 (per pound of biochemical oxygen' demand) <br />66,000 <br />$11,279, 000 <br />- $157.53 (per pound of suspended solids) <br />71,600 <br />1.4 Stormwater System Cost of Service: <br />Formulas: <br />SDC eligible costs <br />= Gost''per impervious acre <br />Acres of impervious surface <br />Cost per impervious acre <br />= Cost per square foot of impervious surface <br />.Square feet per acre <br />City of Eugene SDC Methodology Page G-4 <br />