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' DATA-LOGGER <br />' To insure that the proper procedures were followed during the fabrication of <br />this pipeline, the project specifications required that the persons doing the actual <br />' fusion procedures be certified by the pipe manufacturer, CP Chem. In addition, a <br />"data-logger" device was required to be used on the fusing machine. The data- <br />logger produces a graph that records the time and pressure used to form the fusion <br />joint, as well as recording the face temperature of the heating unit used to heat the <br />' pipe faces. This results in a permanent record of all of the fusion joints made during <br />this project. In addition, an engineer from W. W. Wheeler and Associates, Inc. <br />' (Wheeler) was on hand during most of the fusion processes to personally witness <br />the fusion procedures. CP Chem also certified the Wheeler engineer witnessing the <br />testing of pipe fusion procedures. All df the fusion joints witnessed were made per <br />the PPI guidelines, and were determined to be acceptable. <br />' The records from the data-logger are .included in Appendix A. All of the . <br />traces appear to be acceptable, and all of the heater temperatures were between <br />' 413 and 448 degrees F., which is in accordance with the PPI procedures. A total of <br />129 fusion joints were recorded. Two of the traces, joints #15 and #17, show <br />' problems with the original joints, due to transient problems with the fusion <br />equipment. In the case of joint #15, the joint was pulled apart, the pipe was <br />' resurfaced to remove any questionable material, and the joint was remade (#161• In <br />the case of joint #17, the heater was reapplied for the required amount of time, and <br />' the joint was re-made (#181. In both cases, the joints in question were visually <br />inspected by Wheeler personnel and found to be acceptable. <br />Please note that the dates listed on the data-logger are incorrect. The <br />' welding began August 25, 2003. In addition, due to some previous records being <br />left in the data-logger, the Climax Storke Pipeline data begins at joint #5. These <br />' factors do not affect the accuracy of the graphs produced. <br />' 4 <br />