2018 January – Hidden Woods, Advancetown (Queensland) – E.coli

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3/1/18: Hidden Woods, Advancetown
On 03 January 2018, during routine verification monitoring a positive detection of E. coli (14 MPN/100mL) was recorded at a sample tap in the Nerang WSD. The free chlorine residual was 0.11 mg/L.
“E.coli

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