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  • Environmental Services
MacKay Sposito Environmental Services - Parker Estates
 MacKay Sposito Environmental Services - Prineville Pedestrian Bridge

MacKay Sposito knows environmental regulation and real-world construction methods, which allows us to permit and construct your project the right way from the start. Our staff understand the environmental regulations and requirements to plan, permit and design any project. Combined with our staff’s construction operations expertise, we can streamline the permitting process and ensure permit conditions accurately reflect real-word construction activities while minimizing environmental impacts and maximizing constructability. We facilitate construction by providing qualified staff to implement the permits’ project-specific environmental requirements.

Our areas of expertise include:

   Field Assessments:

  • Wetland/waters delineations and reporting
  • Wetland functional assessments (Oregon Rapid Wetland Assessment Protocol/Hydrogeomorphic Assessment and Washington State Wetland Function Assessment Methods)
  • Rare plant/noxious weed surveys
  • Wildlife habitat surveys

  Federal Permits:

  • NEPA
  • Endangered Species Act compliance
  • U.S. Army Corps of Engineers Section 404 and Section 10 permits
  • Section 401 post-construction stormwater certifications
  • NPDES construction stormwater permits
    – Stormwater Pollution Prevention Plans (SWPPP)/Erosion Sediment Control Plans (ESCPs)
    – Erosion sediment control device (ESCD) design and installation

  State/Local Permits:

  • Removal/Fill permits
  • Fish passage plans
  • Clean Water Services’ vegetated corridor assessments
  • Goal 5 natural resource plans
  • Compensatory wetland/waters mitigation plans
  • SEPA checklists
  • Shoreline permits, critical areas permits
  • Mitigation bank use plans
  • Hydraulic project approval permits

Constructability Review

Project-specific environmental plans

Environmental compliance during construction

Wetland and stream mitigation monitoring

We are CCB-licensed Environmental Contractors in:

  • Washington - CC MACKASC816P2
  • Oregon - 228573
  • Idaho - RCE-53686
  • Montana - 253814