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' <br /> MR 06 '@B 22:22 EXCELTECH/L.F <br /> P.e <br /> Fast-Gas Station EXCUi ICH March 6, 1988 <br /> ^• Pae 5 <br /> 9 Project No. 1813G <br /> i_! r <br /> 3 <br /> g� monitoring points. The Installation of these monitoring�-E g points was required <br /> } in order to provide adequate information in the vicinity of the pumping well. <br /> 3.2 Mea-Urawdown Test <br /> kJ <br /> This test assesses the hydraulic properties of the aquifer by incrementally <br /> r <br /> increasing well discharge over time. The incremental increase of well <br /> discharge. allows an estimate to be made of.optimum well yield. Typicall <br /> the well yield rate is used for the constant discharge test. <br /> Four steps. were run at 2, 4, 5, and 6 gallons per minute (gpm). Each ste <br /> p <br /> varied from' 13 to 156: minutes to observe the. drawdown and yield for each.. <br /> particular discharge. At. the end of each step the aquifer was allowed to <br /> y <br /> recover within 95% of the Initial static condition. Based on the step-test <br /> r� results, the DuPont representative directed to Fxceltech that the <br /> + constant-drawdown test could be conducted <br /> ata 4.5gpm rate. <br /> 3.3onstent- is harga Test <br /> k WThe constant F9 test was conducted to *stress" the aquifer and <br /> t { observe its hydraulic. character at and near the pumping wall. This test was <br /> scheduled for 24 hours (1440 minutes). The actual constant-discharge test <br /> was terminated after pumping 1079 minutes. (18 hours) when the test pump <br />