Algae & blue-green algae - 2005Home | Water | Water Quality & Ecology | Algae | 2005 What the data tell us for 2005Council monitored all water catchments over the reporting period for the presence of algal blooms as well as regularly testing all water supply pondages. In the unlikely event that potentially toxic blue-green algae increases to critical levels in any of Shoalhaven's drinking supplies, a Contingency Plan has been established to ensure that a safe water supply is maintained to consumers at all times. Kangaroo Valley water supply has been a source of concern with high cell counts of blue-green algae first identified in 1997. Since 2001, blue-green algae monitoring in Kangaroo Valley has been undertaken by the Sydney Catchment Authority with sampling closely linked to the water transfers between Fitzroy Falls Reservoir, Bendeela Pondage and Lake Yarrunga. During the reporting period levels of potentially toxic blue-green algae species were below incident levels. Graph 40 shows that the blue green algae levels in Bendeela Pondage remained relatively constant. Blue green algae levels at Lake Yarrunga decreased during 2004/05 as shown in Graph 41. Results of algal monitoring in Kangaroo Valley 2003/2005 Graph 40 - Blue Green Algal Testing Bendeela Pondage Kangaroo Valley 2003/05 Graph 41 - Blue Green Algal Testing Lake Yarrunga Kangaroo Valley 2003/05
Home | Water | Water Quality & Ecology | Algae | 2005
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