Water resources data for the 2002 water year for Alabama consist of records of stage, discharge, and water quality of streams; stages and contents of lakes and reservoirs; and water levels in wells. This report includes records on both surface and ground water in the State. Specifically, it contains: (1) discharge records for 131 streamflow-gaging stations, for 41 partial-record or miscellaneous streamflow stations; (2) stage and content records for 14 lakes and reservoirs and stage at 47 stations; (3) water-quality records for 12 streamflow-gaging stations, for 17 ungaged streamsites, and for 2 precipitation stations; (4) water temperature at 14 surfacewater stations; (5) specific conductance and dissolved oxygen at 12 stations; (6) turbidity at 3 stations; (7) sediment data at 6 stations; (8) water-level records for 2 recording observation wells; and (9) water-quality records for 21 ground-water stations. Also included are lists of active and discontinued continuous-record surface-water-quality stations, and partial-record and miscellaneous surface-water-quality stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating Federal, State, and local agencies in Alabama.