PSE's environmental and geotechnical department offers environmental, geotechnical, critical areas, surface water, and permitting assessments, evaluations, planning, design, and construction administration in the following areas:

Critical Areas & Wetlands

  • Ecological Site Assessments & Critical Areas
  • Wetland Analysis & Delineation
  • Mitigation Analysis & Design

Water Quality Monitoring & Design

  • Surface Water Quality Monitoring & Design (CESCL certification & LID methodologies)
  • Watershed Engineering & Design

Geotechnical

  • Slope Stability (Landslide) Assessment: Critical Areas & Forest Practices
  • Shoreline Erosion (coastal & stream) Evaluation and Mitigation
  • Stream/Shoreline Restoration Design & Construction Administration
  • Alluvial Fans Assessment (debris flows & debris floods)
  • Seismic Events & Liquefaction Assessment
  • Levee, Setback & Berm design (repair, construction, removal)
  • Stream Bank Revetments & Armoring (bioengineering, rock, piling)
  • Engineered Habitats

Flood Control & Drainage

  • Grade Control Structures
  • Sediment Traps
  • Culvert & Tide Gate Design
  • Drainage Designs
  • Stormwater Retention & Treatment Options (SWPPP)
  • FEMA Floodplains & National Flood Insurance Program

Permitting & Compliance

  • Environmental Permitting & Compliance (EIS, SEPA/NEPA)
  • Grant & Funding Procurement
  • Contracting
  • Construction Administration
  • Inspection & On-Site Quality/Materials Control, Testing & Documentation
  • Environmental Site Assessments (Phase I, II & III)