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The bulk of the cleanup work on the Clark Fork River in Montana, upstream of Milltown, will happen around Deer Lodge, including on a unit of the National Park Service.
Officials at the Grant-Kohrs Ranch historic site say what happens there will be a model for restoration.
The Grant Kohrs historic site is an island of National Park Service ground along the upper Clark Fork River, and like some of the private land along the river, it has significant areas of toxic sediments in the riverbank, and right on top of the ground.
The area is getting its very own cleanup plan, ?EUR??,,????'?????<?????????????????You?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????re looking at a fairly contaminated layer of copper imbedded right in that bank. A big yellow band,?EUR??,,????'?????<????????????????? said Grant-Kohrs Superintendent Laura Rotegard.
The Grant-Kohrs Ranch National Historic Site in Deer Lodge. A place that celebrates 150 years of ranching heritage, and includes 11 acres of slickens, areas with heavy deposits of copper, arsenic and other heavy metals which were carried downstream in the great flood of 1908.
?EUR??,,????'?????<?????????????????This is a poster child slicken. You can see it has a yellow hue on it. That?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????s all the copper sediments right at the top here. This is probably at least a foot or maybe two feet deep of contaminants laid down in that 1908 flood,?EUR??,,????'?????<????????????????? said Rotegard.
Grant-Kohrs is not the only unit of the national park system with a toxic waste issue. But it is the only one to have a court-approved settlement with a responsible party. In this case, almost $4.5 million from ARCO, which means by this time next year, workers may be ready to begin removing contaminated soil.
Is it safe to say that this will be a higher standard here, ?EUR??,,????'?????<?????????????????Yes, you could say that. It?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????s a different standard?EUR??,,????'?????<????????????????? said Rotegard. ?EUR??,,????'?????<?????????????????I don?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????t know if it?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????s a higher standard, but it?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????s a different standard. We sued under a different type of claim, separate from the whole valley, which describes different results for this landscape that, say, for other landscapes along the river on private lands.?EUR??,,????'?????<?????????????????
So, how will the people in charge of the cleanup know what the river looked like before 1908? Officials know the area should have more willows and cottonwoods than it does, and they?EUR??,,????'?????<???????????????????????(R)?EUR??,,????'????re using another western Montana river as a model, the Bitterroot.
Source: Montana News
Raleigh, North Carolina
Francisco Uviña, University of New Mexico
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Ash Nochian, Ph.D. Landscape Architect
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