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1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 .1 1 FIELD PERMEABILITY TEST PROJECT: San Luis BOREHOLE NO.: BH - 4 JOB NO.: 14702 DATE: 07/06/88 VARIABLE HEAD NE THOD INITIAL HT- TO WATER: none feet PIPE DIAME TER: n/e cm HT. TO 4ATER ADDED FOR TEST: 2.60 feet PIPE AREA: n/e cn¢ TOTAL DEPTH OF BOREHOLE: 70-00 fee[ BOREHOLE DIAMETER: 15.24 cm TOP OF P IPE TO GROUND ; 0.00 fee[ BOREHOLE AREA: 182.41 cm2 Note: No standpipe in borehole PERMEA BILITY Date Time Increment Total Water Change in lncrem. Limn. Elapsed Elapsed Level Ht. of Perm- Perm- Time Time Reading Yater ability ability 00/00/00 (Hrs.) (Sec.) (Sec.) (Ft.) (Ft.) K K (cm/sec) (cm/sec) 07/06/88 17.33 2.60 07/06/88 17.35 60 60 4.90 2.30 5.3E-04 5.3E-04 07/06/88 17.37 60 120 5.80 0.90 2.1E-04 3.7E-04 07/06/88 17.38 60 180 6.10 0.30 7.2E-05 2.7E-04 07/06/88 17.40 60 240 6.50 0.40 9.6E-OS 2.3E •04 07/06/88 17.42 60 300 7.00 0.50 1.2E-04 2.1E-OL 07/06/88 17.43 60 360 7.30 0.30 7.3E-05 1.8E-04 07/06/88 17.45 60 420 7.70 0.40 9.8E-05 1.7E-04 07/06/88 17.47 60 480 8.10 0.40 9.9E-OS 1.6E-04 07/06/88 17.48 60 540 8.40 0.30 7.5E-0S 1.5E-04 07/06/88 17.50 60 600 8.60 0.20 5.0E-05 1.4E-04 07/06/88 17.58 300 900 9.80 1.20 6.1E-05 1.2E-04 07/06/88 17.67 300 1,200 10.40 0.60 3.1E-05 9.4E-OS 07/06/88 17.75 300 1,500 11.00 0.60 3.1E-05 8.2E-0S 07/06/88 17.83 300 1,800 11.60 0.60 3.1E-OS 7.3E-0S d2 ~~/2.nLl K ` °-// I n N Note: Pernrabil ity calculations peformed using the following formula: ti= p =Diameter, Intake, cm d =Diameter, Standpipe L =Length, Intake {, = Time, sec H Piezomet ric Nead Reference: Winferkorn, Hans F- end fang, Nsai-Yang (1975). Fourxlation Erg ineerin9 Na dbook, Van Nost ranad Reinhold Lnmpany, New York, 32 p.