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09/14/1995 04:52 9093579307 TONTO <br /> ' • PAGE 05 <br /> • SOP NO. 102 <br /> RIMSMN NO. 0 <br /> uATE atn6m <br /> PAGE 3 OF 11 <br /> ' requirements are specified in the project work plats). This chamber contains scrubbers and <br /> spray nozzles for pressure washing of the CFT probe as it is retrieved from the grouted. In <br /> ' this type of system, all activities are conducted within the enclosed CPT rig. <br /> ' <br /> no standard procedure for conducting strarigtaphic and bydtopolopc investigations is <br /> described below. <br /> 4.3.1 Obtain specifications on the type mad dimensions of the probes and equipment along <br /> with the results of current shop calibrations from the CPT subcontractor. <br /> ' 4.32 With the CPT subcontractor, inspect all equipment to ensure that it is in proper <br /> ' woriing ardor. <br /> 4.3.3 Eucaine dam from adjacent soil borings, if availabie. Initial =Meador of the CPT <br /> data with site lithologies will be accomplished by oumparim with existing boring logs, <br /> geophysical lop, and CPT logs. <br /> ' 4.3.4 Before moving am the site, decontaminate the outside of the rig per SOP 62 and the <br /> project work plans. Far those tip that do not have an automatic decontamination system, the <br /> CPT probe and rods should also be decontaminated per SOP 62. <br /> ' 4.33 Calibrate the CPT cones at zero load reading in air and water. shielding the carte from <br /> direct sunlight heft e commencement of testing at each locadon. <br /> ' 4.3.6 Commence the test and advance the CPT probe into the subsurface at a consistent. <br /> ' controlled ate of 0.03 to 0.07 feet per second (1 to 1 centimeter per second), unless <br /> conditions prevent that rate. <br /> 4.3.7 Record real-time field phm consisting of depth, cone tip resistmtice, sleeve friction <br /> ' resistance, and friction ratio. Poe pressure and differential pore pressure ratio may be <br /> included in some cases. <br /> 1.!7/03.16.9s/oOYr/soP/SGP103 <br />