Keith, Gerri and I visited Emerald last Sat. Am. Vis was bad, 6 feet or so top to bottom. The Sun disappeared at about 30 feet. It was interesting, there were clouds of brown silt drifting through the water. There was a layer of brown/black goo on everything. If you fanned the wall with your hand, it would come off in sheets. It was dislodged by your exhaust, at least the few times I could actually see the overhead.

The last time I saw it like this, the system was blown for 3 months.

Cheers!