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VALUE.QUALITY, <br /> ' Daily Field Report <br /> ' Date: 1010312008 <br /> Arrival Time: 11:00 <br /> Site ID: Chevron 100-1621 <br /> ERI#: 2666 11 X <br /> ' Personnel: CWM <br /> System Status on Arrival: <br /> PM: DAK <br /> ' The system was running on arrival but no pressure is noted at the sparge manifold or at the compressor. <br /> Purpose of Visit: <br /> Perform O&M on the Oxygenation system. <br /> Comments: <br /> ' A safety and check-in meeting was held with Chevron Dispatch. A work permit was filled out, reviewed, and <br /> signed by all. Rick allowed me to work without an official Chevron LPS certification card (for this plant), only <br /> because I was able to show documentation that I'm a Chevron LPS Trainer. This is a one-time deal. I need to <br /> ' go through their presentation on my next visit, only if they have time to give me the presentation. Too many <br /> people have the day off for me to go through the training today: <br /> I troubleshot the system as follows: <br /> ' • Because there was no pressure noted at the gauges, I checked the timers to assure the solenoids were <br /> programmed right. Very little adjustment was needed there. <br /> • 1 checked the pressure relief valve on the gauges. They still read zero. The compressor motor was <br /> ' running during all this, but I noticed it was much quieter and smoother than I remembered. <br /> • 1 opened the bypass valve to run air through the silencer, no air was coming through. The external <br /> cooling fan was running though. <br /> ' I turned off the blower and turned it back on. I noticed a big knocking noise for a fraction of a second, <br /> and then the motor ran smooth, as before. There still was no pressure. The manual indicates this is a <br /> sign the rubber coupling is bad and needs replacing. <br /> • I locked out and tagged out the compressor and started disassembling it. I exposed the filters and <br /> found they were extremely clogged with pulverized rubber. I exposed the vanes and found that they <br /> were shattered. <br /> • 1 tried to separate the motor from the rotary vane housing. It was frozen in place. I was unable to <br /> ' separate them. <br /> Due to the extreme heat of summer in Banta, CA, the rubber couplings probably disintegrated, causing the <br /> ' carbon vanes to shatter inside the housing. <br /> A copy of the manual was made for scanning purposes. <br /> Multiple photos were taken of this situation. <br /> The system was left down, LO/TO on my departure. <br /> ' Sampling: This is not applicable <br /> Global Site Observations: All OK on site walk. Ambient temperature 85°F <br /> Drums/Waste Onsite: None <br /> ' Effluent Totalizer: This is not applicable <br /> GW Wells Open: NA <br /> System Status on Departure: <br /> The system was down on departure. <br /> ' Departure Time: 14:30 <br />