Physician,

Back to the wynoochee and your question of why it is slow to clear.....wynoochee lake is full of that water color and it will take 2-3 weeks for it to flush.

This doesn't always happen but when we get storms like we had a week ago where the southern olympics get centerpunched by storms, the wynoochee headwaters will often pump in sludge to the lake thus messing up the "clearing" schedule.