The Winnipesaukee Basin got a good "flush" with the early rains, but I doubt that the entire lake was affected adversely by high bacteria counts. Ellacoya itself gets closed down on occasion every summer in recent years.
http://www.winnipesaukee.com/forums/...8808#post18808
All warm-blooded creatures produce
E. coli. While ducks/geese/horses get the blame for bacteria (
E. coli), it can be determined from water samples
through bacteria DNA exactly what the source is.
Since that's a busy tourist beach with lots of people, I can understand why the state wouldn't spend the money for a bacterial-DNA check.