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| Agarwal | |
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Recommended Book:
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Agarwal Method for Recovery Analysis AQTESOLV
now includes the Agarwal method Agarwal (1980) showed that a simple transformation of the time data allows one to match type curves developed for drawdown analysis to recovery data. As implemented in AQTESOLV, pumping rates prior to recovery may be constant or variable with the Agarwal method. In the following example, we start by matching the Theis (1935) solution to drawdown and recovery data from an observation well to estimate T and S for a confined aquifer.
If we match the Theis (1935) recovery solution for residual drawdown (s' vs. t/t'), we get very similar results for T and S.
Applying the Agarwal method, we match the familiar Theis type curve to the recovery data. Note that we obtain nearly identical results as the foregoing analyses. An advantage of the Agarwal method is that we can apply the same diagnostic methods used for drawdown data such as derivative analysis.
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for recovery analysis. With this method, you can use standard type curves
(e.g., Theis, Hantush, Neuman, etc.) to analyze data from recovery tests!
