Laperouse Explorers tested Happy Valley Creek at 9.30 on 21st October as part of the National Water Week program.  The results were not particularly good.  Faecal coliforms were 2600 per 100 ml of water.  Under ANZECC guidelines the median bacterial content in fresh and marine waters should not exceed 150 for primary contact.  Primary contact is defined as swimming and surfing.  For Secondary contact – boating, fishing – the value should not exceed 1000. 

Dissolved Oxygen was at 49% which is well below what it should be – 85 to 110%.  Phosphate levels were elevated probably as a result of the extensive weed infestations in and around the creek.  Electrical conductivity was also up at 470.  Further details about watertesting on the La Perouse Headland as well as other sites are at www.streamwatch.org.au

2 Responses to “Watertesting Results for National Water Week”
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