Associated Earth Sciences Inc.

Our Services

Associated Earth Sciences, Inc. (AESI) is a multi-disciplinary, professional consulting firm that has provided integrated geotechnical engineering, environmental, and hydrogeological  services in the Pacific Northwest since 1981 to clients in both the private and public sectors. AESI’s staff of approximately 70 includes geotechnical engineers, licensed geologists, hydrogeologists, and environmental engineers. AESI provides services in five related technical areas:

Geotechnical Engineering analysis for project elements including pervious pavement 

design, site preparation and structural fill compaction requirements, foundation and retaining designs, slope stability for both seismic and static loads, soft soil mitigation, earthwork construction monitoring, and laboratory testing.

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Expert Guidance Every Step of the Way

Geotechnical Engineering

Geologic Assessment

Expert Guidance Every Step of the Way

Engineering Geology services including landslide hazard, seismic risk, erosion, sediment transport and coal mine hazard assessments, mineral resource evaluations and geologic mapping.


A Comprehensive Approach to Consulting

Services include: Low Impact Development (LID) infiltration system design/evaluation, UIC well design, wellhead protection studies, well field design, water quality evaluations, and aquifer testing programs.

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Environmental Consulting

A Comprehensive Approach to Consulting

Environmental services including landfill evaluation ground water monitoring and closure plans, Phase I, II and III Environmental Site Assessments, soil and ground water characterization, UST assessments, asbestos and lead-based paint surveys, and regulatory compliance and negotiation expertise.

Sustainable Development

A Comprehensive Approach to Consulting

▪ Stormwater Facility Design
▪ Porous Surface Design
▪ Soil Management
▪ Rain Garden/Bioswale Design
▪ Green/Soft Faced Retaining Walls
and Slopes