Petition Urges State Department of Ecology to Follow Oregon and
Allow Scientifically Supported Water Releases to Get Baby Salmon Past Big Dams March 8, 2010
Allow Scientifically Supported Water Releases to Get Baby Salmon Past Big Dams March 8, 2010

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If granted, the petition would allow the U.S. Army Corps of Engineers to spill water in greater volume that is permitted under Washington's current restrictions. Increasing the amount of water spilled over the dams increases salmon survival by allowing more fish to avoid the dam's lethal turbines.
Specifically, the petition seeks modification of Washington's Total Dissolved Gas (TDG) standards. Currently, these standards allow a TDG level of 120 percent in the area immediately
below a dam's spillway (the tailrace), but restrict it to 115 percent in the area just above the next dam downstream (the forebay). The petition asks Washington to remove the 115 percent forebay TDG limit or increase it to 120 percent. The current limit is artificially capping what regional fish managers have said is needed for increased salmon survival. In 2006, for example, the existing 115 percent limitation reduced spring spill for salmon migration by 4.1 million acre feet, and led to reduced numbers of salmon and steelhead that survived migration through the lower Columbia and Snake River dams, according to the Fish Passage Center. The State of Oregon recently changed its spill standard to benefit salmon, but Washington has refused to follow suit even though both states considered the issue in a joint process. "Oregon has done the right thing and changed its standards, said Earthjustice attorney Amanda Goodin. "We hope Washington will follow that lead and adopt the same common-sense, biologically-sound approach to give endangered salmon a better chance of surviving." Monitoring, conducted over the last two decades, continues to demonstrate considerable benefit to salmon survival--from increased spill levels-- when TDG levels remain at or below 120 percent. These same studies show virtually no negative impact to other aquatic life. Despite these demonstrated benefits, the federal government has recently proposed to limit beneficial spill this year during much of the spring salmon migration season. This proposal ignores the available scientific evidence on salmon survival collected over the past few years when increased spring and summer spill have been required by court order.
below a dam's spillway (the tailrace), but restrict it to 115 percent in the area just above the next dam downstream (the forebay). The petition asks Washington to remove the 115 percent forebay TDG limit or increase it to 120 percent. The current limit is artificially capping what regional fish managers have said is needed for increased salmon survival. In 2006, for example, the existing 115 percent limitation reduced spring spill for salmon migration by 4.1 million acre feet, and led to reduced numbers of salmon and steelhead that survived migration through the lower Columbia and Snake River dams, according to the Fish Passage Center. The State of Oregon recently changed its spill standard to benefit salmon, but Washington has refused to follow suit even though both states considered the issue in a joint process. "Oregon has done the right thing and changed its standards, said Earthjustice attorney Amanda Goodin. "We hope Washington will follow that lead and adopt the same common-sense, biologically-sound approach to give endangered salmon a better chance of surviving." Monitoring, conducted over the last two decades, continues to demonstrate considerable benefit to salmon survival--from increased spill levels-- when TDG levels remain at or below 120 percent. These same studies show virtually no negative impact to other aquatic life. Despite these demonstrated benefits, the federal government has recently proposed to limit beneficial spill this year during much of the spring salmon migration season. This proposal ignores the available scientific evidence on salmon survival collected over the past few years when increased spring and summer spill have been required by court order.
Contact:
Amanda Goodin, Earthjustice, (206) 343-7340, ext. 20
Glen H. Spain, Pacific Coast Federation of Fishermen's Associations, (541) 689-2000
Liz Hamilton, Northwest Sportfishing Industry Association, (503) 631-8859
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Amanda Goodin, Earthjustice, (206) 343-7340, ext. 20
Glen H. Spain, Pacific Coast Federation of Fishermen's Associations, (541) 689-2000
Liz Hamilton, Northwest Sportfishing Industry Association, (503) 631-8859
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