Laserfiche WebLink
• ( A-2.19 P-3 TEST <br />Well P-3 was pump tested October 3, 1980 as a pumping well in a multi-well <br />pump [est. Well P-2 was used as an observation well. The Lewis Shale from well P-3 <br />was pumped for 255 minutes at an average discharge rate of 5.9 gpm. Tab Le A-22 <br />presents the aquifer-test data for well P-3. <br />Using Jacob's method to analyze the straight line fit of the recovery data, a <br />[ransmissivity of 2400 gal/day/ft is calculated. Permeability was calculated to be <br />107 ft/day. This value is no[ thought to be representative of only the weathered <br />portion of the Lewis Shale. The recovery indicated a recharge source near well P-3. <br />Figure A-24 presents the recovery data plotted on a semi-log plot. <br />A-2.20 P-2 TEST <br />~~ Well P-2 was used as an observation well in a multi-well test on well P-3. <br />Table A-23 presents the aquifer-test data collected during the P-3 pumping. <br />The log-log plot of the drawdown data in well P-2 yields a transmissivity of <br />6100 gal/day/ft. The accuracy of this value is questionable due to well P-3 being <br />completed in the Lewis Shale and monitoring well P-2 completed in the alluvial <br />aquifer. Drawdown in well P-2 could have been retarded by a lower permeability zone <br />between the Lewis Shale and the alluvial aquifer. Figure A-25 presents the drawdown <br />data for well P-2. <br />A-2.21 P-4 TEST <br />The Second White Sandstone aquifer was tested at well P-4 on October 2, 1980. <br />I • / Table A-24 presents the aquifer-test data collected during the pumping and recovery <br />A-1 z n(~fi'1~~'~~~ FEG 13 '87 <br />