The Erosion Prevention program is part of the City’s Comprehensive Stormwater Management Plan which addresses federal water quality mandates and sets local policies to protect stormwater related waterways. These include the Mill Race, Amazon Creek and the Willamette River in addition to open drainage ways, creeks and wetlands. Construction sites can be a major source of stormwater pollution if not managed correctly. Part of the erosion permitting process is the development of a “Construction Site Management Plan,” which identifies ways to minimize impacts to water quality and natural resources during construction.
An erosion prevention permit is required prior any site disturbance for construction activities that:
A site is considered a sensitive area if it meets any of the following criteria:
Projects not required to obtain an erosion permit are still required to meet outcomes. A reference map of sensitive areas is located at the Permit and Information Center.