<rtjoseph at ev1.net> wrote in message news:3c116bd5.157446750 at news.ev1.net...
> I am looking for comments and references to sampling water across a
> municiple water distribution system.
>> In order to determine the source of infections, it is suggested to
> sample points across the distribution system and store them from some
> time. If an outbreak of a disease occurs, the samples may then be
> tested to see if water distribution system contributed to the spread
> and how. (Regular testing all samples is usually considered too
> expensive as the occurance is believed to be so low.)
>> How long can a sample be considered viable for testing if sealed in a
> bottle and shelved? Is refrigeration or freezing more appropriate?
> Are there standards for such sampling and holding?