P. W. Grosser Consulting, Inc. Share: Civil EngineeringEnvironmental EngineeringHazardous WasteHydrology/HydrogeologyWater/Wastewater P. W. Grosser Consulting, Inc. Visit Website 600 N 36th St Ste 225 Seattle, WA 98103 (206) 706-5533 (206) 706-5553 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.