GCCM & CMGC

IMCO offers GCCM and CMGC services in specialized scopes. Clients benefit from having a partner with sophisticated management tools, expertise, and a great depth of knowledge about how to build their projects. IMCO Construction specializes in water and wastewater construction and is committed to keeping up with the latest demands and technology in water management. IMCO teams brings collaborative partnering to projects and lead with integrity, teamwork, and a commitment to find solutions and alignment with diverse stakeholders.

deep square shaped holes in the ground next to a yellow crane and outbuilding

CMGC Nampa WWTP Headworks Facility

Current Project

Project Description: IMCO is constructing a new headworks facility in partnership with Keller. The facility will include new influent pumping, screening, grit removal, and associated infrastructure. The Nampa WWTP Project Group G New Headworks project will also finalize site-wide...

Boeing Everett Stormwater Treatment System Replacement

IMCO was contracted by The Boeing Company to replace the Everett manufacturing facility’s primary stormwater treatment system in response to updated Department of Ecology discharge standards requiring a higher level of treatment prior to releasing water into the adjacent...

Darigold Boise Plant Upgrades

Over multiple contracts, IMCO made significant upgrades to Darigold’s Boise wastewater treatment plant. In early 2022, Darigold selected IMCO for a design-build contract to construct a new dissolved air flotation (DAF) system to further treat and improve the plant’s...

Dairy Processing Industrial Wastewater Treatment

IMCO Construction brought improvements to the industrial wastewater treatment plant at Darigold’s Caldwell butter plant to allow discharged waste to remain compliant with environmental requirements. Construction crews demolished an existing storage building and constructed a new dissolved air flotation...

Everett Water Pollution Control Facility Expansion GCCM Project

IMCO was the general contractor and construction manager (GCCM) working with Carollo Engineers to add nearly 30% plant capacity. The facility treats wastewater from the cities of Everett, Mukilteo, Alderwood, and Silver Lake to keep the local rivers, lakes, and...