Seattle Public Utilities (SPU) seeks qualified vendors to provide annual dust control application services within the Cedar River Municipal Watershed. Services will include site preparation, dust control product handling, application, and post-application monitoring. SPU manages unpaved watershed roads that are critical to facility access and watershed operations. Annual dust control is essential to minimize airborne dust, protect water quality, improve road stability, reduce maintenance needs, and ensure visibility and safety during dry summer conditions. Services will involve the application of approved products such as IntegriBlend CS, Lignin Sulfonate, or approved equivalent, with work typically occurring in June, weather permitting.