Founded in 1978, HWA GeoSciences Inc. (HWA) provides geotechnical and pavement engineering, construction inspection and materials testing, hydrogeology, and geoenvironmental consulting services. Our professional staff includes engineers, geologists, construction inspectors, laboratory technicians, environmental scientists, and support personnel. Located in Bothell, Washington our office includes an in-house, state-of-the-art materials testing laboratory, which is accredited by AASHTO R18 (American Association of State Highway Transportation Officials).