Harbor Pacific Contractors, Inc, Construction Services in the Pacific Northwest
Sultan WWTP Expansion - Sultan, Washington
Engineer: Gray & Osborne
Harbor Pacific Contractors, Inc.
Harbor Pacific Contractors, Inc.
Harbor Pacific Contractors, Inc.
Harbor Pacific Contractors, Inc.
Harbor Pacific Contractors, Inc.
New cast-in-place concrete oxidation ditch with administration / laboratory building constructed above

Replacement of an outdated Wastewater Treatment Plant. Project included two new clarifiers, new oxidation structure with aeration system, new headworks with screw pumps and rotary screens, new operations building and laboratory, new U.V. disinfection system, aerobic digester, and sludge handling system.


Harbor Pacific Contractors, Inc.
19628 144th Avenue NE, Suite A, Woodinville, Washington 98072
phone 425.488.7131 - fax 425.489.3991
www.harborpacific.com -