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12/21/87 <br /> Wel 1 Casi na Elev. Depth GW E1 ev. GW <br /> r <br /> 14. CO 5. 70! 9. 34 j <br />{ <br /> MW - 2 11.88 5. 77 8. 11 <br /> MW - _ 13. 07 4. 77 8. 30 <br /> The wells drilled during this program were spaced so as to <br /> form an equilateral triangle of about 100 ft. on each side. This ! <br /> was done so that the ground water table gradient could be <br /> determined. The writer constructed three point diagrams to <br /> j determine the groundwater gradient at this site. Diagrams were <br /> constructed to determine site conditions on 12/03 and 12/21/87. <br /> Diagrams were not constructed for conditions on 11/05/e7 because <br /> the aquifer had not had time to recover from drilling <br /> disturbance, so precise water table measurements were not . <br /> possible. 1 <br /> The graphic solution of the three point problems is shown on <br /> I <br /> the accompanying worksheets. This analysis shows that the ground <br /> water table gradient is to the northwest at 0. 14 ft. of drop <br /> QPr 100 ft. of plan di stance, on 12/03/87. The ground water . <br /> table gradient has changed to the northeast at. 0. 25 ft. of drop - <br /> per <br /> rc:p .per 100 ft. of pian distance on 12/21/67. This is probably, <br /> due to increased recharge coming into the ground water system- <br /> ram the west of the site <br /> ThE above repres.?nts my best professional opinion as to _ -_ <br /> .:urfi c- al geologic and shallow ground water conditions whiz . <br /> 3 ._.-.=.erMie this site. Should you have any questions regarding <br /> _per t or our work on the project, . do not hesi tate to call . <br /> - Sincerely, <br /> William R. Henkle, Jr. <br /> Certfied Engr. Geol . # 121= <br /> WILLIAM <br /> HENKLE, <br /> No. EG • 001233 <br /> CERTIFIED <br /> ENGINEERING <br /> GEOLOGIST <br /> Of CA�� <br /> T <br /> 1 <br />