Eight pumps from Tsurumi, Glendale Heights, Ill., were recently used in a project to help reestablish plant and animal habitats in Oroville, Calif. The Oroville area, about an hour's drive from Sacramento, Calif., became famous for fortune seekers during the Gold Rush more than 150 years ago.
The area was dredged for gold, resulting in acres of rock and sand piles. Now, during wet seasons, the river would run high and water would flow into the area, leaving the wildlife trapped.
In an effort to restore the destructed habitat, Nordic Industries, Olivehurst, Calif., was contracted to create a channel to serve as a passage for native salmon and other fish to return into the Feather River.
To build the crucial infrastructure to allow fish to navigate in and out of isolated ponds in the protected area, environmental engineers determined a plan to remove the large sums of water so construction could later be completed. The engineers placed eight Tsurumi KTV2-37 5-hp pumps into narrow well casings on both sides of a new waterway. The pumps’ main role was to dewater the work area and allow concrete pouring.
“The channel is significant because it contributes to salmon runs in the region, making it possible for fish to return to the river and ocean, no longer interrupting their spawning cycles,” said Patrick LaZansky, specialty sales representative at Herc Pro Solutions, a rental company in Roseville, Calif., that supplied the dewatering design and Tsurumi units for the project.
LaZansky said the Tsurumi pumps were the ideal solution to dewater the job site, as the area in which the channel was built is below the river elevation and also below the elevation of the area that floods on occasion. The pumps handled both ground and surface water, keeping the area dry so workers could form and pour concrete.
“We needed reliable pumps that could work 24/7 moving water from the construction site,” he said. “It was a tough job as the pumps needed to transfer water in an abrasive environment. The water was additionally boosted to a settling basin about 1,000 ft. away, which then percolated back into the river.”
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