Zebra Mussels Found in Redgranite

[Dewit2it]

Makes me wonder about the calcium level in Redgranite.  If it's low enough the mussels won't be able to make shells for very long before it's used up.  This might limit the problem.  At least it's not a limestone quarry.  Does anyone know if there are any springs there?  Or is everything just drainage?  If it's just drainage, calcium may be real low.

With all the kids using it, I wonder if it might be best to chlorine bomb it just for sanitary reasons. (E-coli, ect.)  But at 250 million gallons that's a tall order.