ATSI is your answer for

Expert Environmental Consulting

Over 30 years’ experience permitting construction involving critical areas.

Trustworthy Land Use Development

Responsible for managing over 2400 investments during the past 30 years.

Dependable Contracting

Specializing in mitigation installation and civil construction relating to critical areas.

Services Offered

  • Biological Assessment (WSDOT Senior Author/Evaluation for Endangered Species & Essential Fish Habitat)
  • Biological Critical Areas Assessments (Fish, Floodplain, Habitat, Streams, Wetland, & Wildlife)
  • Buffer Determinations
  • Design
  • Shorelines Armoring, Trail, Landscaping, Habitat Restoration
  • Expert Witness
  • Faunal & Floral Assessments & Surveys
  • Aerial (Wheeled/Float Plane & Helicopter), Ground (Drive, Hike, Wade, & Walk), Water (Kayak, Pontoon, Vessel, Scuba, & Snorkel)
  • Amphibian, Avian, Benthic Macroinvertebrates, Crepuscular, Endangered Species, Fish (Including Spawning Ground), Mammal (including Marine), & Ungulate
  • Camera, Recorder, Scope, & Visual
  • Functional Assessments
  • Geospatial Analysis (AutoCAD/GIS)
  • Impact Analysis
  • Meetings
  • Mitigation Planning
  • Design (Creation, Enhancement, Preservation, & Restoration), Banks, Permittee Responsible (Onsite & Offsite), Watershed Approach, Credit/Debit
  • Planning
  • Environmental Cooridor
  • Ordinary High Water Mark Determination
  • Restoration (Habitat, Streams, & Wetlands)
  • Scientific Writing, Editing, & Research
  • Technical Guidance/Code Development & Updates
  • Third Party Review
  • Wetland & Eelgrass Delineations, Confirmation, Classification, & Rating

Permitting

  • Clean Water Act Sections 401 (Water Quality Certification) & 404 (Wetland/Stream)
  • Coastal Zone Management Consistency Determination
  • Critical Area
  • Reasonable Use, Tree Retention Plan
  • Endangered Species Act (Section 7 Consultation)
  • Environmental Impact Statement
  • Forest Practice Application
  • Hydraulic Project Approval
  • Joint Aquatic Resource Permit Application
  • National Environmental Policy Act
  • Nationwide & Individual
  • Shoreline
  • State Environmental Policy Act
Contact
Portfolio
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Services Offered

Hover your cursor over each service for more information

  • Wetlands
  • Surveying
  • Plants and Wildlife