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2.0 Single Family Dwelling and Duplex Rate <br />The stormwater SDC for single family development is a flat rate based on the average lot size <br />in square feet in Eugene. The average lot size is multiplied by the residential runoff <br />coefficient to determine the average square feet of impervious surface per lot. This amount is <br />multiplied by the current stormwater SDC rate per square foot to determine the single family <br />residential stormwater SDC flat rate-per dwelling unit with a building footprint less than 3,000 <br />square feet. The stormwater SDC for a duplex is calculated as two times the stormwater SDC <br />flat rate charge of asingle-family dwelling. For current stormwater SDC supporting details, <br />see Table 6. For stormwater formula calculations, see Figure 6. <br />In order to recognize the significantly higher impact to the stormwater system associated with <br />large structures and greater amounts of impervious area, single family dwellings with a <br />building footprint equal to or greater than 3,000 square feet will be charged 150% of the basic <br />single family dwelling rate. <br />3.0 Manufactured Home Development Rate <br />Manufactured home developments are charged a flat rate per individual space based on the <br />average impervious area for a double wide manufactured home, plus any additional common <br />area impervious surface (e.g., clubhouse, private streets). The average impervious area for a <br />double wide manufactured home space in square feet is multiplied by the stormwater SDC <br />rate per square foot to determine the stormwater SDC flat rate per manufactured home park <br />development space. Other impervious features will be measured separately and charged at <br />the stormwater SDC rate per square foot of impervious area. The current stormwater system <br />supporting details for manufactured home park developments can be found in Table 6, <br />sections 3 and 4. <br />4.0 Commercial, Industrial and Other Rate <br />For all uses not listed in paragraphs 2.0 and 3.0 above or when ever this Appendix D makes <br />reference to a rate per square foot, the stormwater SDC collected is determined to be the <br />current stormwater SDC rate per square foot of impervious area as adopted in the current <br />SDC fee schedule located in Appendix F. <br />5.0 stormwater Impacts Not Attributable to Impervious Area <br />For all uses not listed in paragraphs 2.0, 3.0, and 4.0 above, where any development type <br />creates an impact through discharges to the public stormwater system, as allowed by EC <br />6.610, which are not attributable to creation or modification of impervious area, will have SDCs <br />calculated by evaluating the equivalent impervious, area which would generate. a similar impact. <br />6.0 stormwater System SDC Impact Reduction Criteria <br />Reduction or elimination of stormwater which otherwise would be discharged into the public <br />stormwater system may result in a corresponding reduction of stormwater SDC collected at the <br />time of building permit issuance. Reduction of the stormwater SDC will be proportional to the <br />reduction of runoff entering the public system from the fully-developed site. (Note: detention <br />facilities are not eligible for. stormwater SDC impact reduction.) A 100% reduction in the <br />stormwater SDC will be granted only for the complete containment and management of all <br />runoff from the site that would otherwise directly or indirectly enter into the City's public <br />stormwater system. Runoff discharged into an area that does not ultimately enter the City's <br />public stormwater system constitutes acceptance of responsibility for compliance with any <br />City of Eugene SDC Methodology stormwater,. Page D-4 <br />__ <br />