Lee, I checks into the local water plant operation, but I doubt that they have any anthracite coal in the Troy Water Department. Jesse > Jesse > Its used in water filtration plant's. I wonder what they do with their used > stuff. > > Lee MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.