Before the advent of pressure transducers with data loggers, field technicians and drilling contractors were relegated to hours, or even days on site during conventional pumping tests, continuously monitoring water level fluctuations in a vast array of observation wells. Often requiring running from well to well, readings were taken by hand with Water Level Meters. This was time consuming and Subject to human error.
Now, with instrumentation such as the Levelogger Gold, data collection is automated, and data analysis simplified. The Levelogger Gold can be programmed with a customized sampling schedule that sets the rates at which water level data is collected for a number of separate intervals. That is to say, you can customize different sampling rates and durations to record water level readings before, during and after the pumping test (baseline, pumping and recovery), as shown in the example above.
Using a similarly programmed Barologger to record atmospheric pressure fluctuations during pumping tests provides the easiest and most accurate way to compensate Levelogger data. A compensation wizard in the Levelogger Software is used to adjust your data. Compensated data can be viewed directly or exported for use in other programs.