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Source Sampling

Bob McDougall rjma at cogeco.ca
Sat Dec 8 01:17:10 EST 2001


Very interesting question - I have no answers for you, but I'd be quite
interested in what responses you receive, as I am currently evaluating a
sampling device which could greatly simplify such multipoint monitoring /
sample collection & transport, for both bacterial and protozoal
contaminants. It has the added advantage of sampling large volumes cost
effectively and maintaining such samples in small aliquots of the
sampling liquid (ie. water or other fluid being sampled).

Bob
*****************************************

rtjoseph at ev1.net wrote:

> 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?
>
> Ray




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