The water I'd stored in milk gallon-type plastic also mysteriously leaked when stored directly on concrete in the basement for only a few months. It was as if the seams on the bottom just came apart! Jugs of the same age/make that were stored off the concrete remained in perfectly good shape, however.

I've since heard about keeping certain plastics off of concrete, especially new concrete(?) but still can't find any hard scientific studies to back this up.

Just to be safe, I now keep water in several blue "Aquatainers" (singly stacked) far away from any concrete flooring, and make sure to check/rotate on a regular basis.

Two years running, and no problems.





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