I am familiar with the neighborhood you're talking about, and I think I've heard this story. You are bulding in a tricky area......for the rest of the forum...this neighborhood is in a tricky area at the interface between the Virginia Coastal plain (mud rotarty screened wells), and the Piedmont for open hole rock wells. Deep well water may or may not be available. I have a method that I've used in similar areas with great results, to obatin water from the shallow well zone. I'm not sure what the reluctance is, but I have made this offer to 3 major home builders in the neighborhood, and I make it to you. I will drill and test a well anywhere in the neighborhood, and GUARANTEE it to produce 5 gallons per miinute for a 24 hour test. If it doesn't produce, I will abandon the well and leave at no cost. The current wells in the neighborhood are 30 concrete cased, no bottom...not gravel packed, and probably not grouted much. I am offering a screened, gravel packed, grouted well that I've hod great success with in nearby areas. As far as long term concerns, this aquifer is subject to seasonal fluctutations in water level as it directly recharged by rainfall. I do a lot of work with VA DEQ and the greatest fluctuation they have reported in drought conditions is a 10-12' change in water level, so if we can install an efficient well that can tolerate 10-12' in drawdown, you will be alright.