Potable water storage

[looksatstars]

I am trying to find a feasible way of supplying consistant potable water in a remote location. Any help or ideas would be appreciated.

Here are the facts:
1000 US gallon StorageTank
with faucet, pressure by gravity.
Potable water is hauled in.
Water usage is about 1500 US gallon per season.
Seson is 4 months per year.(summer)
Water storage will be stored in locked small metal building.
The tank will be visited by Staff 2x per week.
Ive read that chlorine disapates quickly so i may only get 1-2 weeks out each tank.
Can use pellets to increase chlorine but is that reasonable?
would rather have a system to slowly add chlorine and mix at same time at different volumes.

Just wondered if anyone has done a small system like this before.

 

[bimr]

Follow the guidelines for emergency water:

http://www.fema.gov/pdf/library/f&web.pdf

http://www.who.int/water_sanitation_health/hygiene/envsan/tn05/en/index.html

The water should last 6 months. Chlorination should be done about every 2 weeks.