IIRC correctly the quote about coal for domestic purposes was drawn from a situation (in China, I think) where local coals high in arsenic were burned indoors without venting of combustion byproducts. It's pretty misleading to cite that as if it applies to people burning PA anthracite in proper appliances with proper venting.
For a discussion of arsenic in soils, you might want to read http://www.ecy.wa.gov/programs/tcp/area ... _guide.pdf
. They report a natural background level of about 7 ppm, and a "no concern about children playing in it" level of 37 ppm. They also describe man-made sources of arsenic and lead contamination, with major sources being things like paint, gasoline, pesticides, smelter operations, etc. I don't mind reading SA, but that article's claims about harm from single-digit ppm concentrations seems to imply that we all are doomed by background concentrations, and its anecdotes about "somebody used coal ash and now there is lead and arsenic in the water" seem more like fear-mongering than anything that accounts accurately for the actual contribution - if any - of the ash to the readings.
If you still think PA anthracite is basically harmful rather than benign, you probably should make sure you don't drink any tap water, because anthracite is widely used as a filtration medium in municipal drinking water supplies. I had a neighbor who used to run his mouth about all of the supposed contamination caused by coal, but when he figured out that he was drinking fresh water from it that passes stringent testing requirements, I think it started to dawn on him that common perceptions sometimes deviate far from the evidence.