Title
Public Works Stormwater and Grading Design Standards Update
Body
RECOMMENDED ACTION (Motion):
Staff recommends to continue to monitor the implementation of the Public Works Stormwater and Grading Design Standards, work with development stakeholders to address their concerns and questions about the new standards, and improve the efficiencies and process with development stakeholders that are designing stormwater management facilities using the new standards.
BACKGROUND:
Stormwater management is a key element in maintaining and enhancing livability within the City of Oregon City. As land is developed, creation of new impervious surfaces and loss of vegetation increases stormwater runoff during rainfall events, altering the natural hydrologic cycle. In addition, runoff that flows over roadways, parking areas, rooftops, and other impervious surfaces collects pollutants that are transported within the watershed to streams, rivers, and groundwater resources.
The City’s stormwater management standards, set forth in OCMC 13.12 and these Stormwater and Grading Design Standards, emphasize low-impact development (LID) practices, source controls for higher pollutant generating activities, erosion prevention and sediment controls, and operation and maintenance practices designed to properly manage stormwater runoff and protect our water resources. The goal of these updated standards is to provide local engineers, developers, builders, and City staff clear guidance in planning and designing stormwater conveyance and management systems that are appropriate to Oregon City’s climate, hydrogeology, and geology. These standards apply to public and private projects throughout the City.
August 18, 2015, was the effective date of Resolution No.15-14 for implementation of the new Public Work Stormwater and Grading Design Standards. One provision included in Resolution No. 15-14 included a look-back provision:
"Look-back. Within one year after these standards take...
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