Coliform bacteria and E. coli in drinking water. Comparison of EU reference method with alternative methods

In the report the EU-reference method is compared to five other internationally recognized methods, where Colilert was one ofthese, together with the Danish national reference method until now. The conclusion on the data from the Danish study was among others, that with the Danish national reference method it was not possible to detect coliform bacteria in any of 15 samples where one or more of the other methods detected coliform bacteria.  The Danish EPA has therefore decided to implement the EU reference method with Colilert as an alternative quantitative method for the examination of coliform bacteria and E. coli in Danish drinking water.