Quote:
Originally Posted by FlyingScot
There's an LWA presentation that I saw years ago (it might be on the website?) that agrees with this. It described the towns around the lake forming a watershed, like a giant bowl, and everything in the bowl collects on the bottom.
I don't know about your pollution point in the 50s-70s, gratefully too young to remember, but I would not doubt this. Nixon started the EPA in the early 70s and that has done a lot with cars, boats, factories, etc. I am optimistic that we can beat this different kind of problem today
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In the 1950s, our nextdoor neighbors on the lake installed a new device that washed dishes. How quaint just for a summer season. We still use the sink.
Later, we found out that to insure wine glasses were spotless afterwards, the content of dishwasher soap was "improved" by adding an extremely high level of Phosphorus. Phosphorus settled deeply into the latest leaching field designs which, 50 years later, are now
far beyond their expected lifetime. Decades passed before Phosphorus was notably decreased in dishwasher detergents.
This season's
artificially high water level is pulling the sequestered Phosphorus out from those lakefront subsoils into the lake.
Tuesday's strong winds broke up the concentrations of blue-green cyanobacteria.
It'll be back.
