Waste Water Management
Landscape & Architecture
Storm Water Solutions
We address envirnmental concerns
Construction  capabilities at all levels
Civil, Environmental, and
Recreational Consulting


PO Box 1678
Tacoma, WA  98401-1678
711 Pacific Avenue
Tacoma, WA 98402
(253) 272-7220 ph
(253) 272-7250 fx


Cosmopolitan Engineering Group prepares planning documents and engineering reports for numerous sanitary sewer system projects. These projects range in complexity from on-site residential grinder pumps to comprehensive wastewater facility plans. Design services range from gravity sewer extensions to pump station and wastewater treatment plant design. Our staff has experience in designing numerous municipal and industrial wastewater treatment facilities ranging from 22,000 gpd to 400 mgd. Recent wastewater, sanitary sewer, and pump station projects include:

Planning and Analysis

King County Infiltration/Inflow Evaluation - King County, WA

Comprehensive Wastewater Facility Plan - Enumclaw, WA

Shelton Area Regional Sewer Facilities Plan - Shelton, WA

Tamoshan Wastewater Treatment Plant Engineering Report - Thurston County, WA


Wastewater Treatment Plant Improvements - Enumclaw, WA

Denny Way South Lake Union Combined Sewer Overflow (CSO) - King County, WA

Pump Station 2A Redesign - Gig Harbor, WA

Pump Station Planning and Design - Chehalis, WA

Wastewater Treatment Plant Improvements - Shelton, WA


South Magnolia CSO Outfall - King County, WA

Sewer Outfall Repair and Cathodic Protection - Edmonds, WA

Marine Outfall Siting Studies and Design - Gig Harbor, WA

Outfall Extension Design - City of Snohomish, WA



Copyright © 2007 Cosmopolitan Engineering Group ---------------