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)

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)

Permitting & Compliance

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