Packaging

The FDA's safety criteria require extensive toxicity testing for any substance that may be ingested at more than negligible levels.

That means the FDA has affirmatively determined that, when plastics are used as intended in food-contact applications, the nature and amount of substances that may migrate, if any, are safe. 

How long can you store a bottle?
The FDA has not established a shelf life for bottled water. IBWA advises consumers to store bottled water at room temperature (or cooler), out of direct sunlight and away from solvents and chemicals such as gasoline, paint thinners and dry cleaning chemicals. Bottled water can be used indefinitely if stored properly.