Contract given to upgrade water-treatment plant

Peninsula Daily News

OLYMPIC NATIONAL PARK — The National Park Service has awarded a $1.3 million contract for upgrades to the diversion pump station intake at an industrial water-treatment plant on the lower Elwha River.

Fish screens and pumps at the plant — which provides initial water treatment for the city’s industrial water supply, the Nippon Paper Industries USA Inc. mill, the state Department of Fish and Wildlife’s fish-rearing channel and the Lower Elwha Klallam tribe’s new fish hatchery — were clogged with organic material and sediment after heavy rains last fall.

Macnak Construction LLC of Lakewood has been awarded the $1,365,021 contract, Olympic National Park spokeswoman Barb Maynes announced this week.

Off-site fabrication will begin immediately with on-site work scheduled to begin in mid-March.

New intake screens are expected to be operational by early April.

The plant does not treat the Port Angeles municipal water. That comes from a nearby well and was not affected by the rush of leaves, twigs, branches and sediment.

The plant is one of several mitigation projects built to protect Elwha River water users from impacts of high sediment flows related to removing two dams on the Elwha River in the $325 million Elwha restoration project.

Dam removal frees the Elwha River, which was blocked by dams built without fish ladders, and allows all salmon to return to more than 70 miles of habitat.

A park contractor began razing the Elwha and Glines Canyon dams in September 2011.

Elwha Dam was demolished by last March.

Because of the upgrade to the treatment plant, removal of the upper Glines Canyon Dam, of which only 30 percent remains, has been put on hold.

A new work schedule for dam removal has not yet been finalized, but park officials said the project will be finished well before the contract ends in September 2014.

Last modified: February 20. 2013 5:32PM
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