Water resources data for the 1991 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 5 contains water levels for 1,069 observation wells and water-quality data for 276 monitoring wells and 2 springs. These data represent that part of the National Water Data System opera?ted by the U.S. Geological Survey and cooperating State and Federal agencies in California.
Additional publication details
USGS Numbered Series
Water Resources Data, California, Water Year 1991. Volume 5. Ground-Water Data