The only way the lake will get clean is if the government comes up with the absurd $$$$ to (1) upgrade the capacity of Syracuse Metro, (2) substantially reduce the inflow/infiltration in the City's collection system, (3) construct the Onondaga Lake Bypass for the sewage outfall (the detention time due to the Seneca River actually flowing mostly into the lake causes the lake to stagnate). I can't imagine ever seeing the lake in any "decent" condition in my lifetime, my daughter's, or her children's.....
and then there is all the toxic metals in the silt/sludge..... just an ideal dive destination.....
(I lived in Liverpool for 7 years - heard the big promise of salmon being re-introduced into the lake. Think it was supposed to have been established years ago - that didn't happen.... the Lake is an environmental nightmare)
hope you have Haz-Mat gear...