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09114(1995 04: 52 9093579307 TOHTO PAGE n7 <br /> • • SOP NO. 102 <br /> REVISION NO.0 <br /> ' BATE: M116195 <br /> PAGE 6 OF I 1 <br /> 4.3.8 Pore pressure dissipation tem may be conducted to determine relative flow rates at <br /> specific depths. The CPT probe is held stationary at a given depth and data are recorded for <br /> ' a set time inuaval. The tittle interval is dependent on the lithology of the ZOM being tested. <br /> ' 4.3.9 Once the CPT is pushed w the maximum desired depth, data collection is terminated. <br /> The CPT is retracted from the hole and the tip and rods ase wiped down during extraction. <br /> 4.3.10 Upon completion of a test, calibrate the pkzocone again to zero load reading and <br /> compare this to the initial reading. <br /> ' 4.3.11 Abandon the hole in accordance with the project wort plana. <br /> 4.3.12 All pertinent information observed during the investigations will be recorded by the <br /> rig geologist or engineer. Information will be recorded on the Field Activity Daily Log <br /> (FADL) (Attachment 6.1) and/or appropriate form(s) as specified in the project wart plans. <br /> Any and all problems or unusual conditions encountered should also be noted an the above <br /> forms and brought to the attention of the site superinteadem. <br /> 4.4 SOI/ SARW" <br /> if required. soil sampling will follow the CPT analysis rum. Soil sampling loittiors will be <br /> ' placed updip relative to the location of the previous CPT testing run The standard procedure <br /> is described below. <br /> ' 4.4.1 Assemble and check the nemsary sampling eq»ipmert before soil sampling. <br /> Decontaminate all downhole sampling equipment before sampling. as described in SOP 6.1. <br /> ' The rig should also be decontaminaW per SOP 62. <br /> ' 4.42 Deploy and advance the soil sampling probes with the CFT rods to collect soil samples <br /> at the sample intervals specified in the project work plans. The sample intervals may be <br /> identified from the adjacent CPT dam and any other subsurface data available. The sampling <br /> device contains removable liners that fit inside the drive tip mechanism. <br /> mZ'M.I69ypOvrf3tlij3MO2 <br /> 1 <br />