I caught alot of fish out of that lake, there used to be monster jacks in there. The lake has drastically changed in the last 10 years and probably going to get alot more shallow because of no snow or rain. It needs a good flush because of the algae. Fort st John used to get there drinking water from that lake. It was very bad water especially in the summer, the tap water smelled and tasted like the lake.
Might want to check with locals. I’ve eaten them before and delicious but it might be a seasonal thing, water gets algae choked in summer. Also has some old stories of sewage issues but I think that’s ancient history too and some folks just put off because they remember how it used to be…