R.K. Gabrysch
1968
<p><span>Water well drillers gather information essential to recovery tests as part of normal procedure. Added effort could yield additional valuable information. More care </span>in<span> measurement of water levels both before and after a period of pumping can be used with groundâwater formulae to determine approximate well efficiency. A </span>relationship<span> exists between the ability of an </span>aquifer<span> to perform (</span>transmissibility<span>) and the </span>specific<span> </span>capacity<span> of a well. By means of pumping tests, both </span>transmissibility<span> and </span>specific<span> </span>capacity<span> may be measured. The theoretical </span>specific<span> </span>capacity<span> can be obtained based on the measured </span>transmissibility<span>. Well efficiency may be estimated from a comparison between measured </span>specific<span> </span>capacity<span> and theoretical </span>specific<span> </span>capacity<span>. Tests of wells owned by the City of </span>Houston<span>, </span>Texas<span>, were selected for analysis. Test results were compared with curves showing theoretical relationships. From the comparison, wells </span>in<span> the </span>Houston<span> </span>area<span> are not completely developed. It may not be economical to develop a well to 100 percent efficiency, but theoretical relationships should be used </span>in<span> well development. </span></p>
application/pdf
10.1111/j.1745-6584.1968.tb01651.x
en
NGWA The Groundwater Association
The relationship between specific capacity and aquifer transmissibility in the Houston Area, Texas
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