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1 <br />1 <br />i <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />i~ <br />FIELD PERMEABILITY TEST <br />PROJECT: San Luis 80REHOLE NO.: BH - 8 <br />J08 NO.: 14702 DATE: 06/29/88 <br />VARIABLE READ MET H00 <br />INITIAL NT. TO 4ATER: 52.80 feet PIPE DIAME TER: 3.18 cm <br />MT. TO HATER ADDED FOR TEST; 0.00 feet PIPE AREA: 7.92 cm2 <br />TOTAL DEPTX OF BOREHOLE: 93.50 fee[ BOREHOLE DIAMETER: 15.24 cm <br />TOP OF PIPE TO GROUND : 4.20 feet BOREHOLE AREA: 182.41 cm2 <br />TOTAL DEPTH OF PIE20METER: 93.00 feet SCREEN LEN GTH: 20.00 feet <br />i0P OF SEAL: 58.00 feet BOTTOM OF SEAL: 64.00 feet <br /> PERMEA BILITY <br />Date Time Increment Total Yeter Change in Inc rem. Clmn. <br /> Elapsed Elapsed Level Ht. of Perm- Perm- <br /> Time lime Reading Hater ability ability <br />00/00/00 (Hrs.) (Sec.I (Sec.) (Ft.) (F [.) K K <br /> (cm/set) (cm/sec) <br />06/29/88 15.50 O. DD <br />06/29/88 15.52 60 60 0.80 0.80 1.5E-OS 1.5E-OS <br />06/29/88 15.53 60 120 1.50 0.70 1.3E-OS 1.4E•OS <br />06/29/88 15.55 60 180 2.30 0.80 1.5E-OS 1.4E-OS <br />06/29/88 15.57 60 240 3.10 0.80 1.5E-05 1.5E-OS <br />06/29/88 15.58 60 300 3.70 0.60 1.2E-OS 1.4E-OS <br />06/29/88 15.67 300 600 7.50 3.80 1.6E-0S 1.5E-OS <br />06/29/88 15.75 300 900 10.90 3.40 1.5E-05 1.5E-OS <br />06/29/88 15.83 300 1,200 14.00 3.10 1.5E-OS 1.5E-OS <br />06/29/88 15.92 300 1,500 16.80 2.80 1.4E-05 1.5E-OS <br />06/29/88 16.00 300 1,800 19.40 2.60 1.4E-OS 1.5E-OS <br />l o ~n N, <br />Note: Permeability caltul a[ions peformed using the following formula: Kti= $-L (tt-t~) H Z <br />p = Diameter, Intake, cm <br />d =Diameter, Standpipe <br />~. =length, Intake <br />t = Time, sec <br />f{ Piezometric Head <br />Reference: Ninterkorn, Nans F. end Ferg, Xsai•Yang (1975). Foundation Engineering Mendbook, <br />Van Nost ranad Reinhold CrnQany, Mev York, 12 p. <br />