> For the complete documentation index, see [llms.txt](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators.md).

# Microbial indicators

- [Bacteroides](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/bacteroides.md): (endorsed 2011)
- [Coliphages](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/coliphages.md): (endorsed 2011)
- [Clostridium perfringens](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/clostridium-perfringens.md): (endorsed 2011)
- [Escherichia coli](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/escherichia-coli.md): (endorsed 2011)
- [Heterotrophic plate counts](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/heterotrophic-plate-counts.md): (endorsed 2011)
- [Intestinal enterococci](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/intestinal-enterococci.md): (endorsed 2011)
- [Thermotolerant coliforms](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/thermotolerant-coliforms.md): (endorsed 2011)
- [Total coliforms](https://guidelines.nhmrc.gov.au/australian-drinking-water-guidelines/part-5/microorganisms/microbial-indicators/total-coliforms.md): (endorsed 2011)