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<br />FIELD PERMEABILITY TEST <br />PROJECT: San Luis BOREHOLE NO.: BH 4 <br />JOB NO.: 14702 DATE: 07/06/88 <br />VARIABLE NERD METN00 <br />INITIAL HT. TO HATER: none feet PIPE DIAMETER: n/a cm <br />HT. TO WATER ADDED FOR TEST: 2.60 feet PIPE AREA: n/e cm2 <br />TOTAL DEPTH OF BOREHOLE: 70.00 feet BOREHOLE DIAMETER: 15.24 cm <br />TOP OF PIPE TO GROUND: 0.00 feet BOREHOLE AREA: 182.47 cm2 <br />Note: No st ardpl pe in borehole <br /> PERMEABILITY <br />Date lime Increment Total Yater Change in Increm. calm. <br /> Elapsed Elapsed Level Ht. of Perm- Perm• <br /> Time Time Reading Water ability ability <br />00/00/00 (Xrs.) (Sec.) (Sec.) (Ft.) (Ft.) K K <br /> (cm/sec) (cm/sec) <br />07/06/88 17.33 2.60 <br />07/06/88 17.35 60 60 4.90 2.30 5.3E-04 5.3E-04 <br />07/06/88 17.37 60 120 5.80 0.90 2.1E-04 3.7E-04 <br />07/06/88 17.38 60 180 6.10 0.30 7.2E-0S 2.7E-04 <br />07/06/88 17.40 60 240 6.50 0.40 9.6E-OS 2.3E-0L <br />07/06/88 17.42 60 300 7.00 0.50 1.2E-04 2. tE•04 <br />07/06/88 17.43 60 360 7.30 0.30 7.3E-0S 1.8E-04 <br />07/06/88 17.45 60 420 7.70 0.40 9.8E-0S 1.7E-04 <br />07/06/88 17.47 60 480 8.10 0.40 9.9E-0S 1.6E-04 <br />07/06/88 17.48 60 540 8.40 0.30 7.5E-0S 1.5E-04 <br />07/06/88 17.50 60 600 8.60 0.20 5.0E-05 1.4E-04 <br />07/06/88 17.58 300 900 9.80 1.20 6.1E-05 1.2E-0L <br />07/06/88 17.67 300 1,200 10.40 0.60 3.1E •OS 9.4E-0S <br />07/06/88 ~ 17.75 300 1,500 11.00 0.60 3.7E-0S 8.2E-05 <br />07/06/88 17.83 300 1,800 11.60 0.60 3.1E-0S 7.3E-05 <br />d2 ~n /2m L~ <br />K ( ° In N, <br />Note: Permeability calcul at(ons peformed using the follou(ng formate: h- <br />p =Diameter, Intake, cm <br />d =Diameter, St ardpi pe <br />1r =Length, Intake <br />{ =Time, sec <br />F{ = Pietanetric Head <br />Reference: Vinterkorn, Hens F. end Ferg, Xsai•Yeng (1975). FouMa[ion Erg ineerin9 Nardbook, <br />Van No:tranad 0.ei MOld Cmpany, Neu York, 32 p. <br />