I posted this question on another popular prepper board but thought I would put it up here as well.

I finally found a potential supply of 55 gallon drums in my area. There's a small town east of me with about 30 empty barrels that I can have. All of the barrels used to contain sodium hypoclorite. I googled a bit and it appears to be related to bleach. I believe that this is the stuff that they spray on the roads around here. I could be wrong.

Is this chemical safe to use for human consumption? Compost tumbler and water storage are my first two barrel projects.