London Water Testing logoLondon Water Testing

Microbiology

Enterococci

An additional faecal indicator group, persistent in water.

What is Enterococci?

Intestinal enterococci are bacteria used as a complementary faecal indicator.

Why test for it?

Enterococci can persist longer than E. coli in some conditions, which makes them useful in private supply investigations.

Where can it come from?

  • Faecal contamination
  • Surface water ingress
  • Animal activity near a supply

How is it measured?

Determined by membrane filtration and selective culture, reported per 100 mL.

What does my result mean?

Interpreted with E. coli and coliforms as part of a microbiological picture.