I was looking up Simon B. Watt's book and ran across this site. It seems to have lots of sources of information on water: collection, filtration, storage, etc.

http://www.oasisdesign.net/water/storage/refs.htm

Also here, probably some overlap: http://www.harvestingrainwater.com/resources/rainwater-harvesting-with-cisterns-resources

FYI

Sue