* Updates for this data series are no longer available from the U.S. Geological Survey.
Years Available: 1985, 1990, 1995
Permanent Link: http://data.sagepub.com/sagestats/6422
General Notes: *Median value gives the value for the "average" county for this metric, the 50th percentile of all counties reporting data. **Water that is applied by an irrigation system to assist crop and pasture growth, or to maintain vegetation on recreational lands such as parks and golf courses. Irrigation includes water that is applied for pre-irrigation, frost protection, chemical application, weed control, field preparation, crop cooling, harvesting, dust suppression, leaching of salts from the root zone, and conveyance losses. Water that is lost in transit from a pipe, canal, conduit, or ditch by leakage or evaporation. Leakage from an irrigation ditch, for example, may percolate to a groundwater source and be available for further use. 1955-1995: Conveyance losses reported nationally 2000-later: Conveyance losses not estimated nationally