Packaging
Bottled water packaging is using lighter-weight plastics and fewer natural resources. Many bottled water producers have reduced the plastic container weight for water bottles by an average of 27 percent, maybe even more.
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.