Attachment 7C - Flora and Fauna Survey Assessment_Noosa Landfill - Revision 3

                                                                                      Native Foresters




                      FIGURE 18: Drainage line on eastern boundary of landfill

        The orange-brown sludge along the south-eastern landfill boundary may be
         attributed to the proliferation of iron-oxidising bacteria which tends to be associated
         with elevation in iron (Fe2+) levels in emerging groundwater and/or more anoxic
         groundwater (Figure 19). Oxidation of acid sulfate soils can also result in elevated
         iron levels.




   FIGURE 19: Ponded water in central drainage line – red brown colour indicative of iron
                                       enrichment

        The presence of green algae at the southern stormwater outflow is indicative of high
         nutrient concentrations (Figure 20).

Noosa Landfill & Resource Recovery Centre – Fauna and Flora Assessment – Revision 3
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