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9 years, 3 months ago
I am looking for a statistical amounts which are allowed.
Some students say it is 0 for all bacteria, which I think is false.
this USA source.
I found there
Total Coliforms (including fecal coliform and E. Coli) mg/l. No more than 5.0% samples total coliform-positive (TC-positive) in a month.
Giardia lamblia: 99.9% removal/inactivation.
What is the right place to look for such information?
Feb 9, 2014 at 15:31
No, your colleages are right: There should be no coliforms in drinking water in Europe following the
Council Directive 80/777/EEC.
This PDF from the Northern Ireland Environment Agency (which follows the directice mentioned above) shows this a bit nicer.
It makes sense, since coliforms are a sign of mixing sewage and fresh water. Nothing you want to have happening.
This is the relevant table from the linked PDF:
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Feb 9, 2014 at 16:41
Chris ♦ Chris
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