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- Aperture Value: F2.9
- Date/Time Original: 10/13/2004 2:57:56 PM
- Exposure Time: 6218/100000 sec
- Flash: Flash did not fire, auto
- Focal Length: 7.6 mm
- Model: HP PhotoSmart C945 (V01.46)
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Filtration tanks are backflushed every 60 hours with clean water to extract the filtrate. The process take about 45 minutes, and the water used is either cycled back through the processing plant or piped to a holding facility in a nearby quarry.