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U.S. GEOLOGICAL SURVEY
Data Series 269

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Summary

Periodic ground-water temperature data and ground-water temperature profiles were collected in wells at and in the vicinity of the Nevada Test Site (NTS) during the years 2000 through 2006. Periodic ground-water temperatures were collected in 166 wells at and in the vicinity of the NTS. In general, these periodic ground-water temperatures were measured at about 5 and 55 feet below the water surface. Periodic ground-water temperatures are measured using a calibrated temperature probe attached to the bottom of a calibrated electric tape. Depth measurements are considered accurate to the nearest foot and temperatures are considered accurate to the nearest degree Celsius.

Ground-water temperature profiles were measured in 73 wells at and in the vicinity of the NTS. Temperature loggers attached to an uncalibrated electric tape recorded temperatures at multiple depths below the water surface to produce these profiles. Depth measurements are considered accurate to the nearest foot and temperature measurements accurate to the nearest degree Celsius. The deepest temperature measurement was measured at 3,982 feet below land surface. Differences between periodic and ground-water temperature profile measurements at similar depths were typically less than 0.5°C.

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