The "Dig Safe" program might be a good model for controlling access to Sean's work. This would not preclude further scholarship on Sean's work but it would keep the data out of the hands of the 31337 crowd. Huh ?, Try this on for size , "Hello , I am joe's contracting service & I have a building permit(I do) and I need to dig at ..." If I remeber correctly the "Dig Safe" program will give me the info without so much as a check on the permit or my company name .
This is not really correct. They wont tell you over the phone.
I should probably correct this from "wont" to "should not". The reason for that is that if one does not call call before dig, one would be liable. If one does call and misunderstands, the survey company would be liable. So those companies prefer to leave very clear marks. Alex