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• Figure A-25 presents the water-level elevation data for well <br />GP4. Data prior to 1988 shows a great deal of variance with the <br />third quarter of 1987 being significantly lower than previous <br />measurements. A water level rise has been observed in 1990. <br />Values for 1991 fluctuate, but an overall decline in the water <br />level was observed. <br />The water-level elevation versus time plot for well GP5 is <br /> <br />presented in Figure A-26. The levels in the QR aquifer near well <br />GP5 have been gradually declining since 1985. Water levels <br />declined approximately 15 feet during 1988 and remained low until <br />1990. This response reflects the drier conditions with some <br />increase in recharge in 1990. The water level for well GP5 has <br />. dropped over eight feet since the same time last year, continuing <br /> its decreasing trend prior to some recharge in 1990. Well GP6, <br />completed in the QR aquifer, is located approximately 4700 feet <br />south of well GP5. Water-level elevation versus time is presented <br />in Figure A-27. Overall water levels have dropped slightly in the <br />QR aquifer at GP6 since September 1987, but the decline is small <br />compared to the change in well GP5. Water levels in the QR aquifer <br />at well GP6 appear to be less sensitive to changes in recharge than <br />at well GP5. <br />Water-level elevations versus time for well GP7 are presented <br /> <br />on Figure A-28. Levels have shown fairly little change since 1985, <br />but water levels have been gradually declining the last three <br />years. <br />2-11 <br />