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i <br />FIELD PERNEABILITY TEST <br />PROJECT: San Luis BOREHOIE NO.: BH - 1 <br />JOB NO.: 14702 GATE: 07/04(88 <br />VARIABLE HEAD NETH00 <br />INITIAL NT. TO VATER: none feet PIPE DIAMETER: n/e cm <br />HT. TO VATER ADDED FOR TEST: 0,00 feet PIPE AREA: n/a em2 <br />TOTAL DEPTH OF BOREHOLE: 50.00 feet BOREHOLE DIAMETER: 15.24 cm <br />TOP OF PIPE TO GROUND: 0.00 feet BOREHOLE AREA: 182.41 cm2 <br />Note: No standpipe in borehole <br /> PERNEABI LITY <br />Date Tine Increment Total Neter Change in Inc rem. Ctmn. <br /> Elapsed Elapsed Level Ht. of perm- Perm• <br /> Time Time Reeding Vater ability ability <br />00/00/00 (Hrs.) (Sec.) (See.) (Ft.) (Ft.) K K <br /> (cm/sec) (cm/sec) <br />07/09/88 11.00 0.00 <br />07/09/88 11.02 60 60 0.55 0.55 2.0E-04 2.0E-04 <br />07/09!88 11.03 60 120 0.80 0.25 9.3E-05 1.5E-04 <br />07/09/88 11.05 60 180 1.15 0.35 1.3E-04 1.4E-04 <br />07/09/88 11.07 60 240 1.60 0.45 1.7E-04 1.5E-04 <br />07/09/88 11.08 60 300 1.85 0.25 9.5E-0S 1.4E-04 <br />07/09/88 11.17 300 600 2.70 0.85 6.5E-0S 1.0E-04 <br />07/09/88 11.25 300 900 3.60 0.90 7.0E-0S 9.1E-05 <br />07/09/88 11.33 300 1,200 4.40 0.80 6.3E-05 8.4E-0S <br />07/09/88 11.42 300 1,500 5.05 0.65 5.2E-05 7.8E-0S <br />07/09/88 11.50 300 1,800 5.55 0.50 4.1E-0S 7.1E•OS <br />• <br />d2 ~n /2mL1 <br />l o ~~ N, <br />Note: Permeability calculations petormed using the following fornula: Kh- <br />t3•V (t Y.~t~) ~2 <br />p =Diameter, Intake, cm <br />d =Diameter, Standpipe <br />L =Length, Intake <br />t =Time, sec <br />f{ = Piexametric Nead <br />Reference: Vint erkorn, Hans f, and Fang, Nsai-Yang (1975). foundation Engineering Handbook, <br />Van Nos[renad ReiMOld Company, Mew York, 32 p. <br />