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TABLE 8 <br />Stormwater Drainage Systems Development Charge Analysis <br />1. Existing Stormwater Drainage System Value & SDC - Eligible Costs (Reimbursement Feed <br />Total Replacement Cost -- Existing Pipe System <br />$289,860,933 <br />Total Replacement Cost - Existing Open Channel Systems <br />$82,855 <br />Total Replacement Cost, Existing (Replacement Cost New) <br />$372,716,042 <br />Percent of Existing Pipe System to be Used by New Development <br />4.27% <br />Percent of Existing Open Channel system to Used by New Development <br />2.34% <br />Total SDC- Eligible Cost - Existing Pipe* <br />$12,377 <br />Total SDC - Eligible Cost - Existing Open Channel Systems* <br />$1 <br />Total SDC - Eligible Cost, Existing System <br />* Based on percent available capacity per hydraulic model <br />4'3� 5,873 <br />1 2. Future Stormwater System SDC - Eligible Project Costs (improvement Fee) <br />Total Est. Cost, Future System (SDC - Eligible Projects) (From Table 9) <br />$35,341 <br />SDC - Eligible Portion of Project Cost, Future System (From Table 9) <br />$15,763,679 <br />1 3. Stormwater System Calculation Details <br />Single - Family Dwelling (SFD), estimated average impervious surface area <br />Small Residential (building footprint <1,000 sq. ft.) <br />1,800 sq. ft. <br />Medium Residential (building footprint X1,000 sq. ft. and < 3 ,000 sq.ft.) <br />2,900 sq. ft. <br />Mfg. Home Park Space, estimated average impervious surface area <br />1,780 sq. ft. <br />Total Additional Impervious Surface Area within UGB build -out) <br />155,770,560 sq. ft. <br />1 4. Calculation of SDC* <br />Unit Cost per Square Foot, Improvement Fee <br />[$1 5,763,6791 1 55,770,560] <br />$0.1012 <br />Unit Cost per Square Foot, Reimbursement Fee <br />[$14,315,873 t 155,770,560] <br />$0.0919 <br />Total Unit Cost per Square Foot <br />[improvement + R <br />$0.192 <br />Small Residential SDC (building footprint < 1,000 sq. ft.) <br />[1,800 sq. ft. x $0.192] <br />$345.60 <br />Medium Residential SDC (building footprint x1,000 sq. ft. and < 3,000 sq.ft.) [2,900 sq.ft x $0.192] <br />$556.80 <br />Small Duplex SDC (unit building footprints < 1,000 sq. ft <br />[$ 345.6 0 x 2] <br />$691.20 <br />Medium Duplex SDC (unit building footprints x1,000 sq. ft. and < 3,000 sq.ft.) [$556.80 x 2] <br />$1,11 3.60 <br />Mfg. Home Park SDC per Space (portion of total charge) <br />[1,684 sq. ft. x $0.192] <br />$323.33 <br />*See Appendix F for complete rate schedule. <br />(53 %) <br />(47 %) <br />City of Eugene SDC Methodologies Stormwater, Page D -6 <br />