Thx Skip
My bad..... it looked good on the "preview page" somehow I messed up the link. Thanks for the help correcting it.
It is scary.. From what I'm told, Gilford is not alone in concerns about exactly what types of materials were used 25-30 years ago as "fill". I remember working in a campground during my 20's, when they applied used motor oils to "oil" the dirt roads to hold down dust.