Hazen and Sawyer Share: Water/Wastewater Hazen and Sawyer Visit Website 1601 5th Avenue Suite 600 Seattle, WA 98101 (206) 796-9044 About Map About Hazen and Sawyer is a Design Professional Corporation with over 1,800 staff that is focused exclusively on the water environment – water, wastewater, stormwater, and reclaimed water. What's Nearby? Distance: 5 10 15 20 25 50 mi.
