I am not sure of the name of the material being used, I just know its an insulator. I'll ask when I go back.

Electure, SFS?

I wish I had thought of pouring a footing just for ufers earlier. I don't know if the owner would now go for 1 day of backhoe, 20 yards of concrete, and 1 man's day labor + 200' of 1/0. Anyone think this additional expense is warrented?

Winnie, all the buildings are seperated by at least 50' of parking lot, with no metalic connections, so we should be good there.

Thanks for the tips guys, guess I was just being a bit timid dealing with something new.