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EIS-0169-SA-04: Supplement Analysis

Yakima Fisheries Project-Construction/modification upgrades to the Prosser Hatchery and the Marion Drain Hatchery Facilities

The purpose of this Supplement Analysis is to determine if a Supplemental EIS is needed to analyze the construction/modification upgrades to the Yakima Klickitat Fisheries Project (YKFP) fall chinook and coho experimental facilities at the Prosser and Marion Drain Hatcheries. Construction/modifications are in support of the experimental acclimation, rearing and incubating activities for coho and fall chinook.