Welcome to HWA GeoSciences Inc.

Located in Bothell, Washington, HWA GeoSciences Inc. provides a full range of geotechnical and geoscience solutions to public agencies and engineering / architecture firms, for design and construction of buildings, parks, solid waste, transportation, waterfront, water, wastewater, and storm water facilities.

Since 1978, HWA's engineers, geologists, environmental scientists, construction inspectors, and laboratory technicians have been helping to create a better, safer, more sustainable built environment in the Pacific Northwest and abroad. In additional to our engineering and science services, we operate a state-of-the-art materials testing laboratory, accredited by the American Association for Laboratory Accreditation (A2LA) and the American Association of State Highway and Transportation Officials (AASHTO) R18.


Brightwater Marine Outfall,
Edmonds, Washington

Featured Project

HWA Geosciences Inc was recently awarded the Gold Engineering Excellence Award in Water and Wastewater from the American Council of Engineering Companies (ACEC) of Washington for the Brightwater Marine Outfall project in Edmonds, Washington.