Superlative-filled tunnel-boring machines are nothing new to Seattle. From the infamous mole that dug a new State Route 99 tunnel to a handful of TBMs carving a new path for Sound Transit’s aggressive light rail expansion, tunneling under the Pacific Northwest city is almost commonplace.
The project team worked with the city of Spokane to establish a next level of treatment filtration system by adding a tertiary membrane treatment to remove phosphorus.
The design for the Anacortes water treatment plant resiliency project called for a 42-in.-dia welded steel pipeline to be extended underneath the Skagit River.
The 12 alluvial wells that supply the South Adams County Water and Sanitation District’s 66,000 customers produce severely hard water, requiring local homeowners to frequently replace plumbing and water heaters and purchase costly in-home softeners that release corrosive brine waste into the sewer.
Crews tasked with upgrading the Portsmouth Wastewater Treatment Plant in the same footprint as the existing plant due to space constraints on Peirce Island had to maintain treatment operations and public pool access.
The project involved providing a new source of clean drinking water for 322 residences and businesses in Hopewell Junction, N.Y., after a groundwater pollution plume was discovered.
Completing the $70.2-million replacement of the almost 70-year-old James E. Quarles Plant in Marietta, Ga., required careful coordination to keep water running
Completed in April 2022 on budget and on schedule for the U.S. Bureau of Reclamation, this is the first design-build water treatment plant for the Jicarilla Apache and Navajo nations.