Not trying to be a spoiler but I could have swore I read that in some parts of Oklahoma the water never clears due to some type of clay suspension from the soil. Don't know where I read this though. Could have been here?

I would say in a normal circumtance a settling pond would be an answer as would increasing aquatic macrophytes.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.