The contractor shall provide zooplankton analytical services for water samples collected by the Seattle District Corps of Engineers in the Columbia River and Lake Rufus Woods at Chief Joseph Dam, in the Kootenai River and Lake Koocanusa at Libby Dam, in the Pend Oreille River and Lake Pend Oreille at Albeni Falls Dam, in the Green River and Eagle Gorge Reservoir at Howard Hanson Dam, and in the White River at Mud Mountain Dam.