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centimeters per second (cm/sec) to 7 95E-4 cm/sec Data sets of the raw and analyzed data,
<br />solutions, and
<br />standard normal deviate graphs are presented in Appendix E
<br />The following table summarizes the results of
<br />the aquifer pump test
<br />Observation Well
<br />Radial
<br />Observed Draw
<br />Transinissivrty Storativity
<br />Hydraulic
<br />Distance from
<br />Down
<br />Conductivity
<br />EX -1
<br />(ft)
<br />(ft2/nnn)
<br />(cm/sec)
<br />(ft)
<br />EX -1
<br />025
<br />1158
<br />001554 1
<br />7 89E-5
<br />(Natural Lithology)
<br />SVE-2
<br />12
<br />127
<br />0 1565 00007808
<br />7 95E4
<br />MW -12
<br />22
<br />065
<br />01439 00073
<br />7 31E4
<br />SVE-3
<br />25
<br />059
<br />01058 00073
<br />5 37E-4
<br />Analysis of the recharge portion of the aquifer test yielded a volumetric recharge rate of EX -1 of
<br />approximately 0 72 gallons per minute (gpm) Calculations and associated graphs relating the volumetric
<br />recharge rates are included in Appendix E
<br />In addition to the field data observed and collected during the aquifer pump test, extracted groundwater
<br />samples were collected and analyzed by Zymax using EPA Test Method 8260B Three aqueous samples
<br />were collected from EX -1, one at the start of the pump test, one at the midpoint, and one at the end, just
<br />prior to recharge Initial sample results reported TPHg, BTEX, and MTBE analytical concentrations of
<br />12,000 ug/L, 1,800 ug/L, 540 ug/L, 130 ug/L, 1,300 ug/L, and 320 ug/L, respectively Another aqueous
<br />sample, collected at the same time, was analyzed for general minerals Results of the midpoint sample
<br />reported TPHg, BTEX, and MTBE analytical concentrations of 11,000 ug/L, 2,100 ug/L, 510 ug/L, 210
<br />ug/L, 990 uglL, and 310 ug/L, respectively Results of the final sample reported TPHg, BTEX, and
<br />MTBE analytical concentrations of 11,000 ug/L, 2,400 ug/L, 520 ug/L, 200 ug/L, 950 ug/L, and 270
<br />uglL, respectively All Results of the analytical testing on the extracted groundwater are presented and
<br />summarized in Table 9A and Table 9B, Aquifer Test Analytical Groundwater Results Copses of the
<br />laboratory reports are included in Appendix D
<br />8 3 Aquifer Pump Test Discussion and Conclusions
<br />The results of the Theis least square fit solutions are consistent with typical silt, sandy silt, clayey sands, till,
<br />silty sands, and fine sands within an unconfined aquifer This is consistent with the observed lithology of
<br />silt, silty sand and clayey sands of the aquifer The results of the Theis solutions provide a reasonable range
<br />of parameters that could be utilized for a remedial system design
<br />EZ 100966 CAP
<br />S lEZ Serve\EZ 1009661Reports1100966CAP
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<br />ATC Associates Inc
<br />ATC Protect No 43 25827 0026
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