Water-resources data for the 2000 water year for California consist of records of stage, discharge, and water quality of streams, stage and contents in lakes and reservoirs, and
water levels and water quality in wells. Volume 4 contains discharge records for 190 gaging stations and 5 partial-record stations, stage and contents for 60 lakes and reservoirs, gage-height
records for 1 station, precipitation data for 3 stations, and water quality for 10 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.