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Data transmitted from selected ground-water sites.
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Descriptive site information including latitude, longitude,
well depth, and site use.
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Depth to water or
water-surface elevation in wells.
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The Ground-Water database contains ground-water site inventory, ground-water level data, and water-quality data. The ground-water site inventory consists of more than 850,000 records of wells, springs, test holes, tunnels,drains, and excavations in the United States. Available site descriptive information includes well location information (latitude and longitude, well depth, site use, water use, and aquifer). The USGS annually monitors ground-water levels in thousands of wells in the United States. Ground-water level data are collected and stored as either discrete ground-water level measurements or as continuous record. Data from some of the continuous record stations are relayed to USGS offices nationwide through telephone lines or by satellite transmissions providing access to realtime ground-water data. |