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1. How are stormwater monthly charges calculated?

Stormwater rates are based on your Equivalent Residential Units (ERU). Each residential unit, (apartment, duplex, townhouse) is considered 1 ERU. Non-Residential property rates are charged based on the following calculation:

ERU = Lot Area÷2500 × Development Intensity Factor (DIF)

DIF is based on the type of use and is specified in the Oregon City Municipal Code 13.16.

2. What types of projects will the stormwater rate increases include?

Rate increases will address both capital project needs as well as deferred maintenance. Proposed projects with the rate increase include:

• Newell Creek Canyon Outfall Assessment, giving us a better understanding of the condition of the outfalls in this area
• Outfall rehabilitation as identified in the Outfall Assessment
• Begin design and construction of the Rivercrest Area Stormwater system, addressing a lack of infrastructure in this neighborhood
• Addressing aging culverts in Singer Creek Park
• Water Quality and Detention Pond Rehabilitation
• Continuing to address the 79 problem locations identified in the Master Plan