I need to store a supply of water in the event of a natural disaster. 
(I live in the East Bay in the SF Bay Area where we could expect a
major earthquake.  Our tap water is supplied by EBMUD (East Bay
Municipal Utility District.)  I listed some sources of my research at
the end.

One web site, NationalTerrorAlert.com, recommends a 30-day supply per
person.  My goal is to store a minimum 30-day supply for two people.

I am trying to decide between bottled water and the purified water
pouches.  Both have health consequences.  The plastic for the bottled
water is only "relatively safe" and has to be rotated.  The purified
water will leach minerals from the body.  

If you had to choose between the bottled water and the pouches, which
would you choose for adults and which for children?

The plastic bottles have an expiration date.  Can I keep the bottles
that long or should I rotate them more often?

Is there anything wrong with storing tap water in glass jars (like
applesauce jars) or juice bottles in the refrigerator (without boiling
and adding bleach or iodine) at 40 degrees Fahrenheit?   

(Note:  I have ruled out storing my own -- I don't want to spend the
time and money processing my own water for storage, and I am not keen
on adding either iodine or bleach to the water.)

Also note there is some discrepany in the sources listed below as to
whether the five-gallon bottles are safe or unsafe.

--Outtawork

Dangers in water from plastic bottles? 
http://answers.google.com/answers/threadview?id=202093

Emergency purified water pouches
http://www.quakeproofinc.com/shop_o_matic/index.php?action=item&substart=0&id=16

Why Purified Water is Bad For You (cached copy)
Purified or reverse osmosis water is free of dissolved minerals and
[thus causes the body to leach needed minerals] . . .
http://64.233.161.104/search?q=cache:UbgEfR4Gz0kJ:watershed.net/purified.htm+purified+water&hl=en

Bottled water
The five-gallon containers and the ones in the clear bottles
(polyethylene) are a much better plastic and will not give the water
that awful plastic taste.
http://www.mercola.com/2001/may/23/bottled_water.htm

Most clear plastic bottles seem to be safe, especially those labeled
1, 2, and 4. However, water that is delivered in five gallon
polycarbonate bottles (number 7) that have been reused may leach
bisphenol A into the water. The plastics industry insists that bottles
do not leach bisphenol A (BPA), and that bisphenol A does not cause
problems www.plasticsinfo.org . Others would differ, since BPA has
been linked to chromosome damage and hormone disruption.
http://www.cure-guide.com/Natural_Health_Newsletter/Drinking_Water/drinking_water.html

Relatively safe 
#1 polyethylene terephalate (PET) used only once
#2 and #4 polyethylene

Unsafe
# 5 polypropylene (catsup bottles, yogurt containers)

http://www.cure-guide.com/Natural_Health_Newsletter/Plastic_Bottles/plastic_bottles.html

Hi Outtawork (hope you aren't),
I expect that you need about 600 ltrs/qts (150 gallons) for two person
for 30 days, but maybe more is recommended.  Have you considered
putting in a tank - or better, series of tanks - between your
watermain and house?  1000 ltr is a cubic meter (40x40x40 inches, to
have a visual impression).  I am thinking of plastic tanks made of
whatever kind of plastic is least likely to affect the water, and I am
presuming that one or a series of tanks correctly connected to each
other would bear the pressure from your water supply, maybe with
support to keep them from bulging.
In everyday use with bathing and toilets, etc., the water in the tanks
would be constantly replaced, be fresh when the earthquake hits.  Then
you will need to have a drain at the bottom of the tanks or a hand
pump to get the water, or  - easiest -  be able to syphon the water
(just a hose and having the tanks where you can collect the water
below the water level in the tanks).
If the earthquake happens, you can then add chemicals to preclude
growth of fungi or whatever - if that is necessary.

I have a camping water container of a semi-soft, milky plastic
(polyethylene?) that I have taken on trips to warm climates.  The
unclorinated tap water in it tasted as good as ever after 3 weeks, so
I don't think that is really a potential problem.  And if you really
should need to use the water for so long, you aren't going to be so
particular.

I realize that I am suggesting a more expensive initial investment,
but it will avoid worrying about rotating water in individual
containers, which shouldn't be glass; they might break.  "My" full
water tanks would take a lot of beating as long as they were not
punctured by a sharp object, which could be avoided by their
placement.  (I am envisioning a row of tanks in your garage or
basement, each about chest high (150 cm) by 18 in(= 45 cm) by 30 in,
each about 500 ltr = 125+ gallons.  Of course, in whatever dimensions
such tanks are available.

(I just hit your last link and saw that it says that PET bottles
should only be used once, but in Europe PET bottles for bottled water
are recycled with a nine month "use before" date.  Someone is always
worried that approved standards could still be harmful.)

I hope the earthquake doesn't hit; I have friends living SE of Berkeley.