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1 1 1 F1 1 velocity through each site. All surveys generally follow guidelines listed in Trihey and Wegner (1981). Transect Specific Measurements At each habitat transect and each hydraulic transect, the model requires the following data: stream bed profile; total depth at each wet vertical, mean column velocity at each vertical; water surface elevation; linear distance (stationing) between transect headpins; substrate composition; and cover. The following procedures were used to obtain the necessary data. Stream bed profile. The end of each transect was marked with a wooden survey stake. For all above water locations, the stream bed elevation was surveyed to the nearest 0.1 foot. At the water's edge on both banks, the station was noted and water surface elevation surveyed to the nearest 0.01 foot. This elevation was used as a reference for all wet verticals. Bed elevations for all in-water verticals was calculated be subtracting the water depth from the water surface elevation. Water depths. Starting at the water's edge and progressing across the stream at !1 selected intervals, water depths were measured to the nearest 0.1 foot using a topsetting wading rod. Total water column depth was measured at each vertical. Water velocities. At each vertical where depth was measured, mean column water velocity was measured using a Swoffer Model 2100 current meter. The habitat suitability criteria use mean column velocity in the suitability calculations. Mean column velocity is measured directly for water less than 2.5 feet deep at 0.6 times the total depth from the water surface. For water over 2.5 feet deep measurements at 0.2 and 0.8 the total depth and averaged to determine the mean column velocity. Velocities were recorded to the nearest 0.1 foot per second. Draft 2001 Task Summary Report Page 6 Miller Ecological Consultants, Inc. December 18, 2001