DvrSkip
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We don't know his dive plan. But given that he was planning on 2 hours of dive time, it is likely that he was planning on spending time in the shallower parts of the quarry as well as the deeper parts. Having searched the shallower parts, they have now turned attention to the deeper parts, and that is slow going. The cold and depth will limit divers to about 20-30 minutes unless they add decompression time, which is not reasonable really. Better I would think to limit dive time, sit out an hour or two, and do more diving in a day instead of two longer deco dives. The cold really limits what can be done. I've done an hour and a half at depth there, and the deco at 20 feet was very welcome it was warm as bath water in comparison to the deeper part of the dive.
The bottom is often a layer of black fog a foot or two above the mud bottom. Sometimes it's thinner and wispy and other times it's so dense it swallows 10w HID lights. I have pictures of a buddy in the "fog." All you can see is his head, which sticks up out of the fog. The rest of his body is in the fog and not on the bottom. Trying to find someone on the bottom requires searching by feel. Other times I've seen the bottom clear as day, with virtually no black fog at all.
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The bottom is often a layer of black fog a foot or two above the mud bottom. Sometimes it's thinner and wispy and other times it's so dense it swallows 10w HID lights. I have pictures of a buddy in the "fog." All you can see is his head, which sticks up out of the fog. The rest of his body is in the fog and not on the bottom. Trying to find someone on the bottom requires searching by feel. Other times I've seen the bottom clear as day, with virtually no black fog at all.
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