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<br />FIELD PERMEABILITY TEST <br />PROJECT: San Luis BOREHOLE NO.: BH 8 <br />J08 NO.: 14702 DATE: 06/29/88 <br />VARIABLE HEAD METHOD <br />INITIAL HT. TO WATER: 52.80 feet PIPE DIANE TER: 3.18 cm <br />HT. TO PATER ADDED FOR TEST: 0.00 feet PIPE AREA: 7.92 cm2 <br />TOTAL DEPTH OF BOREHOLE: 93.50 feet BOREHOLE DIAMETER: 15.24 cm <br />TOP OF PIPE TO GROUND : 4.20 feet BOREHOLE AREA: 182.41 cm2 <br />TOTAL DEPTH OF PIE20M ETER: 93.00 feet SCREEN LENGTH: 20.00 fee[ <br />TOP OF SEAL: 58.00 feet BOTTpI OF SEAL: 64.00 feet <br /> PE RNEABI LITY <br />Date Time Increment Total Vater Change In Increm. [tmn. <br /> Elapsed Elapsed Level Nt. of Perm- Perm• <br /> Time Time Reeding Water ability ability <br />00/00/00 (Hrs.) (Sec.) (Sec.) (Ft.) (Ft.) K K <br /> (cMsec) (cm/sec) <br />06/29/88 15.50 0.00 <br />06/29/88 15.52 60 60 0.80 0.80 1.5E-05 1.5E-05 <br />06/29/88 15.53 60 120 1.50 0.70 1.3E-05 1.4E-05 <br />06/29/88 15.55 60 180 2.30 0.80 1.5E-0S 1.4E-05 <br />06/29/88 15.57 60 240 3.10 0.80 1.5E-0S 1.5E-OS <br />06/29/88 15.58 60 300 3.70 0.60 1.2E-0S 1.4E-0S <br />06/29/88 15.67 300 600 7.50 3.80 1.6E-0S 1.5E-05 <br />06/29/88 15.75 300 900 10.90 3.40 1.5E-05 1.5E-0S <br />06/29/88 15.83 300 1,200 14.00 3.10 1.5E-05 1.5E-05 <br />06/29/88 15.92 300 1,500 16.80 2.80 1.4E-05 1.5E-0S <br />06/29/88 16.00 300 1,800 19.40 2.60 1.4E-0S 1.5E-05 <br />d2 In / 2,nL1 <br />l/ ~ o / ~~ H. <br />Note: Permeability calculations peformed using the following fornula: Kh~ $,L (tL-t~~ N x <br />f~ =Diameter, Intake, cm <br />d =Diameter, Standpipe <br />L =Length, Intake <br />{ = Time, sec <br />f{ = Piexometric Nead <br />Relerenc e: Yinterkorn, Mans F. end Teng, Hsei-T erg (1975). Foundation Erg ineering Xardt)ook, <br />Van Nostranad Rei Mold Conpany, Ncr York, 12 p. <br />