Street dust is an easily identifiable source of contaminants and is directly attributable to development. Street dust is defined as fine-grained solids with particle sizes <500 µm that are found on IC such as roadways, parking lots, and/or sidewalks. Street dust typically contains metals, polycyclic aromatic hydrocarbons (PAHs), and dioxins from vehicular exhaust, eroding vehicle brake material, petroleum products (e.g., gasoline, oil, and grease), combustion byproducts, degrading asphalt, and driveway sealants. Seasonally it may contain chloride (winter) and nutrients (summer) related to winter maintenance and landscaping activities. During rain events contaminated street dust is transported from IC into urban streams through managed stormwater disposal networks. Our Long Creek street dust study will provide analytical data to support a model and implementation framework for public and private landowners to utilize nonstructural BMPs to manage and reduce street dust impacts to impaired watersheds. Public and private landowners are very concerned about the increasing stringency of stormwater regulatory requirements. Monitoring the success or failure of nonstructural BMP implementation is critical to provide information on how best to restore water quality while minimizing the need for additional regulatory requirements. The information gathered as part of this grant will greatly enhance the collective understanding of the effectiveness of nonstructural BMPs in managing street dust impacts to Long Creek.