PUMPING-TEST ANALYSIS OF WELLS HAVING STORAGE CONTRIBUTION

In general, pumping tests are performed in borewells as well as in dug wells. Depending on the radius of the pumping well, the storage effec ts influence the aquifer parameter estimation. To account for the stor age effects, it is necessary to use the models that include the well-s torage effects. However, the models that account for the storage effec ts require graphical solutions that are subjective. Presented here are highly accurate algebraic forms of the well functions that include st orage effects. These forms render their use amenable to error-based op timization algorithms for the estimation of aquifer parameters. The po tential of these models was compared with the 1935 Theis model, which does not allow for storage effects.