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Union Ice Company - Weher Street <br /> Phase II-Report of Findings <br /> Page 7 <br /> Since there is only one monitor well that is screened in the Sand 2 aquifer, we do not <br /> know a gradient direction for it. <br /> AQUIFER PROPERTIES <br /> A 12 hour pump test was conducted at Monitor Well EX-8 on March 2, 1991. The well <br /> was pumped at a constant discharge of 4.16 gPm for 12 hours. Discharged waters were <br /> stored in a 10,000 gallon swing tank on site. <br /> Water levels were monitored at two minute intervals for the <br /> first <br /> 10te intervals minutes of the te60 <br /> five minute intervals from 10 to 60 minutes into the test; <br /> to 120 minutes into the test, 20 minute intervals from 120 to d160 minute intervals from <br /> 30 minute intervals froinutes into the test; <br /> m 180 to 240 minutes into the test, an <br /> very <br /> 240 to 720 minutes into the test. This sequence was as P turnedted off. hile nla <br /> were monitored for 1� hours after the pump ro arty. <br /> intervals were observed for the observation wells on the p l)e <br /> The results of the pump test were analyzed graphically using the Thies time - <br /> Jacob straight line, time - drawdown (log - semtlog) and Jacob <br /> drawdown (log - ), _ semilo methods. The graphical solutions are <br /> straight line, residual drawdown (loco, g) <br /> presented in Appendix C. Results follow: <br /> TRAtNSN'llBiLITY <br /> JACOB DD <br /> JACOBRDD REMARKSWELL' <br /> ?.1,534 Clean,thick <br /> No match 13,393 sand <br /> 3 <br /> 4,393 Clay and silt <br /> 5,784 5,780 lbds <br /> 4s sand, <br /> 1,664 CiayCy_. <br /> sa <br /> 75 <br /> 2,116 2.196 thin <br /> 1,743 Fine sand,clean <br /> 1.846 2,196 1830 silty sand <br /> $ 158 22 <br />