Water use and consumption data for 1981 are presented by county and source. Use-data are presented by category for each county. Total water use, excluding wildlife impoundments, was 32,970 million gallons per day, which was 19 percent less than in 1980; consumption was 4,610 million gallons per day. Ground water use was 4,270 million gallons per day, and suface-water use was 2 ,870 million gallons per day. Use in million gallons per day, by categories, was as follows: public supply, 247 (down 6 percent from 1980); self-supplied industry, 237 (up 1 percent); rural domestic and livestock, 120 (up 2 percent); irrigation, 4,370 (up 7 percent); fish farming, 353 (down 1 percent); electric energy generation, 27,640 (down 22 percent). Of the total water use for electric energy generation, 17.4 million gallons per day of surface water was used for hydroelectric energy generation, down about 33 percent from 1980 estimated usage. (USGS)