Boise-The J.R. Simplot Co.’s removal of a leaking pipeline and installation of a replacement pipe as part of a Pole Canyon Creek diversion project at its Smoky Canyon Phosphate Mine is expected to be completed by Sept. 30, the U.S. Forest Service reports. Construction started in October 2006, with the project’s pipeline portion completed in February 2007. The diversion prevents the creek from flowing beneath a waste rock overburden disposal area as part of a plan to remediate contaminant releases from the mine. Last March, engineers found leaks in the pipeline after running water tests through it. More testing conducted in April indicated about 6,800 feet of the 10,400-foot pipeline leaked. In July, the leaking pipeline was removed. Installation of the replacement pipe began on July 30.
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