Construction of the Lapwai Valley Regional Wastewater Project is about six months from completion.
The $6 million collection and treatment plant, commissioned by the Nez Perce tribe, will replace sewage lagoons in the City of Lapwai that no longer meet state and federal standards.
“This has been planned for nearly 15 years,” said Darren Williams, staff attorney in the office of legal council for the Nez Perce tribe. “We are excited to bring it on line.”
Terry Nab, project manager for Progressive Engineering, said the plant has two components: a wastewater pumping system and the treatment facility. Roughly 30,000 feet of pipe will collect and deliver wastewater to the plant in Lapwai, north to Spalding and south to Culdesac.
Granite Excavation Project Manager Dusty Hibbard said, “This area has never had a sewer facility before and the sewage lagoons will likely be abandoned when this is complete.”
A mechanical and bio-solid building are also being constructed on site, and will house offices, a lab area, work storage and equipment. Up to three people will operate the facility once it is operational, expected in summer 2011.
Granite Excavation of Cascade, and Clearwater Construction & Management of Spokane, are the general contractors. Progressive Engineering Group of Lewiston, is the engineering and design firm. Construction is being funded by the tribe, City of Lapwai and a combination of various state and federal block grants and loans.