A sinkhole, now about 2 feet deep and approx. 4 feet wide by 5 feet long, has formed within 5 feet from my deep well equipped with a submersible pump over 100 feet down. My water supply has not been affected so far and the pump is doing just fine, judging from the strong water pressure in the house. Is this just coincidence, or has the pump got something to do with it? We had a long drought here in Northern VA followed by torrential rains about 2 weeks ago. Should I be worried about this, and what can be done about it? Should I wait until the pump stops working? Thanks for any help.