Sewage Concerns

[KalispellMontanaNews.com]

I know some Lakes in Northwest Montana where Toilet Paper was found in the Fish. How does Development after Development on Flathead Lake Keep from Polluting the Lake, I mean Really. I am sure they will say they have a treatment plan, and I’m sure they do but I don’t think there is any real way to keep the lake from seeing sewage debri.
What Do you Think?