Sustainability of freshwater lenses under major rivers

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The main outcome of this research is the discovery that these lenses have continued to form even under the regulated river conditions of the last century. However, high river levels promote lens formation, and the lack of high river levels is limiting the ongoing formation of these lenses.

Pumping groundwater from these lenses, especially in these low-river-level periods is detrimental to the longevity of these lenses and the buffering role that they play,
preventing regional saline groundwater from discharging into the Murray River in these areas.