HWA GeoSciences, Inc. Share: Civil EngineeringEnvironmental EngineeringGeotechnical EngineeringHydrology/HydrogeologyWater/Wastewater HWA GeoSciences, Inc. Visit Website 21312 30th Dr SE Ste 110 Bothell, WA 98021-7010 (425) 774-0106 (425) 774-2714 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.