There are many resources
available for more information on unit conversions. For this
newsletter the following textbooks were used:
Freeze, R.A. and Cherry,
J.A. (1979). Groundwater. Published by Prentice Hall, New
Fetter, C.W. (1994).
Applied Hydrogeology, Third Edition. Published by Macmillan
College Publishing Company, Inc., New York.
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Gold (shown) comes in a variety of ranges suitable to measure
compensated water levels and open bodies of water. Levelogger has a datalogger, 10-year battery,
pressure transducer and temperature sensor, all housed in a very
small, minimal maintenance, 7/8" x 4.9" (22 x 125 mm) stainless steel
housing. The 10 year battery life, high accuracy and
long-term stability make this the ideal device for recording water
levels in monitoring and production wells, boreholes, lakes, rivers,
tanks, harbors, etc.
Leveloggers can be inexpensively suspended
on a simple wireline, or connected to the surface with direct read cable
for rapid downloading of data and/or reprogramming, without removal from
the water. Using a wireline reduces costs and allows the Leveloggers to be
totally hidden from view and locked away from possible damage.
- Pumping and slug tests
- Watershed, drainage basin and
- Stream Gauging, lake levels and
- Harbor and tidal fluctuation
- Wetlands and storm water run-off
- Long term water level monitoring
- All intensive monitoring of
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