Posted on April 12, 2016
By Shane Gilchrist, Otago Daily Times
At the core of Port Otago’s “Next Generation” programme is its dredging activities, the company having been granted resource consent to deepen and widen the shipping channel in the lower harbour and dispose of the soil at sea.
The approval was subject to wide-ranging conditions, involving ongoing monitoring and research into the effects of the dredging and soil disposal, in particular the turbidity of the water in the areas being disturbed. (Turbidity is the concentration of suspended particles; stirring up sediment leads to a higher concentration of particles floating in the water.)
Should turbidity become too high the particles in the water can reduce sunlight filtering through to plants and animals.
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