Project Number # 1101
Project Leader: Paul Monis
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The presence of Environmental E. coli challenges the assumption that E. coli are always an indicator of recent faecal contamination of water. In particular, the ability of some types of Environmental E. coli to grow to high densities in engineered raw water storages in the absence of recent faecal contamination, combined with the unusual characteristics of these naturally-occurring blooming E. coli, means that water utilities require further knowledge of the efficacy of treatment barriers to remove or inactivate these microorganisms, supported by the development of a management framework for this microorganism, which could be incorporated into the Australian Drinking Water Guidelines (ADWG).