The Susquehanna River Basin Commission (SRBC) conducted a Year-1 survey of the West Branch Susquehanna Subbasin from July to November 2002, which included point-in-time samples of the water quality, macroinvertebrate community, and habitat. This report provides an assessment of that data. SRBC monitors and assesses the six major subbasins of the Susquehanna River Basin on a rotating schedule. The previous surveys of the West Branch Susquehanna Subbasin were conducted in 1985 and 1994. An assessment of the data from the 1994 survey also is included in this report for comparison purposes. Historical data from these surveys, as well as all other subbasin surveys, are available from SRBC.