Bottled water can come from any source. Here's a quick reference
Mineral and spring water
This must come from an underground source (not a public water
supply) and can't be altered with chemicals. Mineral water
has a higher amount of dissolved mineral salts.
This can be water from any source, distilled, carbonated or
treated in any manner.
Artesian water/Artesian well water
Bottled water from a well that taps a confined aquifer (a
water-bearing underground layer of rock or sand).
Water that has been carbonated. Soda water, seltzer water
and tonic water are not considered bottled waters.
Water from a source directly from a glacier.
Water(such as spring, mineral, artesian or well water) obtained
from an approved underground source and not from a municipal
or public water-supply system. This water is untreated other
than by filtration.
Water produced by distillation, de-ionization or reverse osmosis,
which contains not more than 10 mg/L of total dissolved solids.