posted on Sep, 29 2009 @ 03:39 PM
yes, you are not alone. many towns have a constant humm in the background.
most of them remain unexplained. it could be radiation, underground rivers. a large generator. or it could be someone expanding secret ungerground
facilitys for the goverment.(they always building crap, for when nukes go off)
[edit on 29-9-2009 by MR BOB]