2015/16 – Dauan (Queensland) – E.coli

2015: Dauan (Queensland) – E.coli
14/9/15: Dauan (Queensland) – E.coli

E.Coli was detected at levels of 36.4CFMU at the Aquis sampling point and 9.9CFMU at N. Mooka’s house.

A Boil Water Alert was issued on 15/01/16 and this still remains in place as of 19/12/16. A new water officer was hired recently and the water officer’s competence is currently being assessed to determine if the Boil Water Alert can be removed.

TSIRC Drinking Water Quality Management Plan 2015/16

“Coliforms are Gram-negative, non-spore-forming, rod-shaped bacteria that are capable of aerobic and facultative anaerobic growth in the presence of bile salts or other surface active agents with similar growth-inhibiting properties. They are found in large numbers in the faeces of humans and other warm-blooded animals, but many species also occur in the environment.

Thermotolerant coliforms are a sub-group of coliforms that are able to grow at 44.5 ± 0.2°C. E. coli is the most common thermotolerant coliform present in faeces and is regarded as the most specific indicator of recent faecal contamination because generally it is not capable of growth in the environment. In contrast, some other thermotolerant coliforms (including strains of Klebsiella, Citrobacter and Enterobacter) are able to grow in the environment and their presence is not necessarily related to faecal contamination. While tests for thermotolerant coliforms can be simpler than for E. coli, E. coli is considered a superior indicator for detecting faecal contamination…” ADWG