Agenda Packet 1-21-20 Public Hearing

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City of Eugene SDC Methodologies - General Methodology Page 8 4.1 Local Wastewater System The local wastewater SDC is based upon estimated wastewater flow discharge (impact on and/or use of system capacity) from various development types. A unit cost of capacity in terms of cost per gallon per day is established and used to determine SDC rates. For residential development the rate is based on number of dwelling units and area of living space. For nonresidential development the rate is based on number of PFUs and the proposed development type. The detailed analysis, methods for calculating, and the Cost of Service formula for the local wastewater system can be found in Appendix C. The local wastewater SDC rates can be found in the current adopted fee schedule in Appendix F. The local wastewater SDC for a proposed development is determined by: Number of Residential Dwelling Units (RDU) and area of living space for single-family, duplex, multiple-family, and other residential development Plumbing Fixture Units (PFU) and proposed development type for other than Residential Dwelling Units (e.g., recreation center, convenience market). 4.2 Regional Metropolitan Wastewater Management Commission (MWMC) Wastewater System The City of Eugene entered into an Intergovernmental Agreement with the City of Springfield and Lane County in 1978, which established the Metropolitan Wastewater Management Commission. On May 15, 1997, the Commission adopted the MWMC wastewater Systems Development Charge which included a regional administrative charge. On April 1, 2004, the Commission adopted a modified MWMC regional wastewater SDC methodology; the MWMC SDC structure was amended to include a compliance charge and to discontinue the use of a separate administrative charge. The regional MWMC wastewater SDC methodology is located in Appendix C2. Current regional rates are also summarized in the Appendix F fee schedule. 5.0 Stormwater System The stormwater SDC is based upon impervious surface area (e.g., rooftops, driveways, sidewalks, parking lots, patios, and other non-porous surfaces). The detailed formulas for calculating the stormwater SDC unit cost (rate) per square foot of impervious surface area is set forth in Appendix D. The stormwater SDC is determined by multiplying the applicable rate by the unit of measure for the proposed development type. The costs per unit of measure and resulting rates can be found in Table 9 and the fee schedule in Appendix F. Where the stormwater SDC is a fixed amount per dwelling unit or space, it shall be determined by multiplying the applicable rate per dwelling unit or space times the number of units or spaces plus, for manufactured home park development, the SDC is based upon the impervious surface area of all additional common areas times the applicable stormwater unit cost per square foot of impervious surface area. Where the stormwater SDC is not a fixed amount per dwelling unit or space, it shall be determined by multiplying the applicable rate per square foot of impervious surface area times the total impervious surface area of the proposed development. Where a development creates impact not attributable to impervious surface area, the stormwater SDC shall be determined by evaluating equivalent impervious surface area, multiplied by the applicable rate per square foot of impervious surface area. January 21, 2020, Public Hearing – Item 1Page 50