Water resources data for the 1985 water year for California consists of records of stage, discharge, and water quality of streams and stage and contents in lakes and reservoirs. Volume 3 contains discharge records for 149 gaging stations; stage and contents for 41 lakes and reservoirs; gage height records for two lakes; and water quality for 34 streams. Also included are 4 crest-stage partial-record stations. These data represent that part of the National Water Data System operated by the U.S. Geological Survey and cooperating State and Federal agencies in California.