About SWT

Soil and Water Technologies is a Geotechnical Engineering, Materials Testing and Environmental Consulting company. Our team of professional engineers, geologists, field technicians and environmental scientists have worked with a variety of clients in the Pacific Northwest for more than twenty years. We have extensive experience and offer the following services:

What We Do

Building Construction

Geotechnical Engineering Studies

Earthwork Construction Monitoring

Soil, Concrete, & Asphalt Testing

Subsurface Site Investigations

Slope Stability Analyses

Landslide Remedial Design

Retaining Wall Design

Storm Water Infiltration Testing / Rain Garden Design

Soil & Groundwater Remediation

Environmental Real Estate Assessments

NPDES PermittingErosion Control Monitoring & Turbidity Testing

Soil and Water Technologies, Inc.

Our company is committed to client satisfaction. Our team members work closely with clients to ensure that they receive a quality product in a timely and cost effective manner. Our knowledge of local geology and construction methods has enabled us to perform cost effective geotechnical engineering studies. Our field experience in monitoring earthwork grading, foundation construction and materials testing, ensure that the quality of construction meets all applicable specifications for successful project completion. We participate in and attend educational geotechnical seminars so that we can provide clients with technological advancements in construction methods and geotextile products.

We provide turn-key solutions for your environmental issues. After a detailed site investigation, we can develop a variety of options to complete the project in accordance with all applicable regulations. All project managers have experience in working and negotiating with the Washington Department of Ecology and the Oregon Department of Environmental Quality, regarding regulatory issues and the closure of remediated sites.

Only the Best


Soil and Water Technologies

is committed to making sure that clients are completely satisfied with the service that they have received so that we can continue a business relationship for many years to come.


Existing Projects or Future Project

that require geotechnical engineering, materials testing and/or environmental services, please call Seth Chandlee at (360) 281-5406. I will be glad to discuss the details of the project and provide you with a proposal to perform the required services.

Years Established

Completed Projects

Field Workers

Office Staff

Contact Us

1101 Broadway St STE 216, Vancouver, WA 98660

(360) 200-8693

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