-You say cloudiness. Is it a slimy brown deposit? Might be iron bacteria
- Static water line is about 45' from surface - what is the GPM capacity of the well or its water level when pumping?
-What type of geology are you in? If not all in hard rock, you might have some areas of clay - silt that is mucking up the water on a large drawdown.
-High capacity-heavy use well?
I had a dirty well that stopped being objectionable when I went to a 3000 gallon storage tank and throttled back the flow so that the pump was moving much less than rated capacity- water no longer had a large drop in level when pumping.
Any mines next door doing a little blasting?