Associated Earth Sciences Inc

Integrated geotechnical engineering, geophysics, and hydrogeology consulting in the Pacific Northwest.

Website

About the firm

Associated Earth Sciences Inc (AESI) is a multi-disciplinary professional consulting practice providing integrated geotechnical engineering, geophysics, and hydrogeologic services in the Pacific Northwest. Established in 1981, the team of engineers, licensed geologists, hydrogeologists, and geophysicists serves clients across both private and public sectors. The practice is built on a multidisciplinary approach that integrates earth sciences with engineering to provide clients with a comprehensive understanding of site conditions and project constraints.

Established
1981
Team
Midsize
Firm type
Geotechnical Engineering · Environmental Engineering · Water / Wastewater Engineering

Credentials

Certified Erosion and Sediment Control Lead (CESCL)

People

Jennifer SaltonstallPresident & Principal Geologist / Hydrogeologist

Jay ChennaultPrincipal Hydrogeologist / Engineer

Carrie MozingoPrincipal Engineering Geologist/Engineer

Curtis KogerSenior Principal Geologist / Hydrogeologist

Jim JohnsonPrincipal Engineering Geologist

Bruce GuenzlerPrincipal Engineering Geologist

Stephen SiebertSenior Associate Geotechnical Engineer

Tony RomanickAssociate Engineer

Tim PeterSenior Geologist

Josh GreerSenior Project Engineering Geologist

James AndersonProject Geologist

Peter LintonProject Geologist

Alex YbarraSenior Staff Geologist

Collin MarshallSenior Staff Geologist

Chance LittleBoyStaff Geologist

Karsten RempelStaff Geologist

Chad AnglemyerStaff Engineer

Isabel LukeNatural Resources Scientist

Jeff LaubAssociate Engineering Geologist

Bradford DrewAssociate Engineer

Kristen MarohlProject Geologist

Dillon WataiProject Engineer

Jon HansenSenior Staff Natural Resources Scientist

Ryan WittersSenior Staff Geologist

Iliah SpectorSenior Staff Geoscientist

Forest Gheen-RegouskiStaff Geologist

Eddy WilliamsonStaff Technician

Jake TalbotNatural Resources Scientist

Ben YoungNatural Resources Scientist

Ellis KotchkaResearch Assistant

Chris AllenAssociate Hydrogeologist

Sue CookSenior Hydrogeologist

Katie FaberProject Water Resource Scientist

Lara KogerProject Environmental Geoscientist

Brennan NowakSenior Staff Field Specialist

Gus CarlsonSenior Staff Geologist

Jessica PeilaStaff Geologist

Isaac Apaez-GutierrezStaff Geologist

Luke MioduszewskiSenior Geologist

Anton YpmaProject Geologist/Hydrogeologist

Stan ThompsonSenior Staff Geologist

Lam NguyenSenior Staff Geologist

Sarah FaubionSenior Staff Geologist

Finn CoffinStaff Geologist

Nicole CochemsNatural Resource Scientist

Joe NataleProject Geophysicist

Nicole FinkGeospatial Solutions Manager

Michael TropGIS Analyst

Jeff ZivkovicGIS Analyst

Ryan TuomistoBusiness Development Manager

Catherine IkedaMarketing Coordinator

Misty GreenBusiness Operations Manager

Elaina RaddenFront Desk Coordinator

Alexis KrapasGraphics Technician

Regan OswaldAdministrative Assistant

Linda DowneySenior Technical Editor

J. HarringtonTechnical Editor and Contributor

Laura Jackson-KinneyAccounting Manager / Human Resources

Camille EssleyAR/AP Specialist

Susana HernandezAR/AP Specialist

Rabecca LarsonAR/AP Specialist

Capabilities

Geotechnical Engineering

Service website

Evaluations of soil, geologic, and hydrogeologic conditions to assess potential site impacts and design safe, stable foundation systems.

  • Geotechnical Engineering Studies

    Comprehensive site assessments incorporating subsurface exploration and site reconnaissance.

  • Retaining Wall Design

    Engineering of retaining structures including mechanically stabilized earth (MSE), gravity walls, shoring, rockeries, and bulkheads.

  • Foundations

    Design of soil bearing systems and drilled or driven pile foundations with settlement mitigation.

  • Slope Stability Analysis

    Landslide mitigation, slope drainage, and critical area reviews to address geologic hazards.

Hydrogeology

Service website

Specialized groundwater studies focusing on the identification, development, protection, and management of water resources.

  • Groundwater Resource Evaluation

    Aquifer identification, availability, recharge/discharge dynamics, water quality sampling, and numerical modeling.

  • Water Supply Development

    Siting, design, specifications, testing, and rehabilitation of water wells and well fields.

  • Groundwater Impact Evaluations

    Environmental impact studies, hazard assessments, nitrate loading, and aquifer degradation evaluations.

  • Water Rights Support

    Confidential evaluations, seasonal transfers, change applications, and annual metering and reporting support.

Stormwater Management

Service website

Comprehensive support for site drainage, infiltration testing, erosion control, and environmental compliance.

  • Stormwater Infiltration & Testing

    Infiltration testing, seasonal groundwater monitoring, UIC well design, and seepage control.

  • Erosion & Sediment Control (CESCL)

    Active site erosion mitigation, turbidity testing, and monitoring led by Certified Erosion and Sediment Control Leads.

Geophysics

Service website

Work in this area is organized into supported delivery tasks.

  • Subsurface Geophysical Investigations Providing Critical Data On Soil

    Support includes Subsurface geophysical investigations providing critical data on soil.

  • Groundwater Conditions

    Support includes groundwater conditions.

  • Work In This Area Is Organized Into Supported Delivery Tasks

    Support includes Work in this area is organized into supported delivery tasks.

Geologic Assessment

Service website

Work in this area is organized into supported delivery tasks.

  • Rigorous Evaluations Of Local Geology

    Support includes Rigorous evaluations of local geology.

  • Site Reconnaissance

    Support includes site reconnaissance.

  • Critical Area Reviews To Guide Design Teams

    Support includes critical area reviews to guide design teams.

  • Work In This Area Is Organized Into Supported Delivery Tasks

    Support includes Work in this area is organized into supported delivery tasks.

Construction Observation

Service website

Work in this area is organized into supported delivery tasks.

  • On-call Geotechnical Observation

    Support includes On-call geotechnical observation.

  • Field Testing

    Support includes field testing.

  • Construction-phase Consulting For Earthwork

    Support includes construction-phase consulting for earthwork.

  • Foundations

    Support includes foundations.

  • Site Improvements

    Support includes site improvements.

  • Work In This Area Is Organized Into Supported Delivery Tasks

    Support includes Work in this area is organized into supported delivery tasks.

Industries

Government · Public Safety · Education · Parks & Open Space · Sports & Recreation · Multifamily Residential · Mixed-Use · Residential · Water Supply · Water Resources · Stormwater & Flood Control · Environmental & Remediation

Projects

Bellevue Fire Station #10

Bellevue, WA · Public Safety · Client: City of Bellevue

Project details

Completed a geotechnical study and provided design and construction-phase geotechnical consultation to municipal representatives and the project team.

Tennant Trailhead Park

Parks & Open Space

Project details

Conducted infiltration testing and provided design recommendations for onsite drainage, alongside performing geotechnical observation during construction.

Hilltop Heritage Elementary School

Education

Project details

Assisted in the assessment of the school grounds and completed a design-phase subsurface exploration and geotechnical study. This project stands as one of the region's first hybrid mass timber educational developments.

Fort Steilacoom Park

Lakewood, WA · Sports & Recreation

Project details

Provided on-call geotechnical observation and testing of infiltration facilities, field light foundations, synthetic turf subgrades, and paving subgrades for new athletic fields.