Re: whirling desiese and felt soled boots.
The info is not dated; the research is cited Gates (2007). This is a new problem for Maryland. The news broke this season, and the contamination of the North Branch of the Potomac is due to poor hatchery management. The North Branch is one of our finest rivers, which many record fish have been taken. Nearby the rest of our trophy waters (Savage, Cassleman, etc) so far haven't been contaminated, but for how much longer?