(g) the disturbance of more than 1 cubic metre of any soil, rock or other material during any single period of 48 hours.Maximum penalty: 50 penalty units. (f) the removal of more than theprescribed amountof material from any land during any single period of 48 hours, (e) the damage or removal of any bushrock, (c) the use ofpower-operated equipmentfor the purpose of surface disturbance, excavation or processing on any land, (b) the excavation or clearing of any land or waters that is subject to native title, (a) the use of any equipment other than hand-held implements on any land or waters that is subject to native title, (2) A person must not carry out work that includes any of the following activities for the purpose of fossicking: (b)aftercompletion of the work, be replaced in order to reconstruct the original soil profile.Maximum penalty: 50 penalty units. (a) be removed and stockpiled separately, and (1) Any soil, rock or other material that is disturbed in the course of work carried out for the purpose of fossicking for minerals must:
Secondary impacts to aquatic and benthic organisms' metabolism and mortality.Tertiary impacts to avifauna which may prey upon contaminated aquatic organisms.Secondary impacts to marsh productivity from sedimentation.Secondary effects from water column contamination of uptake of heavy metals, DDT and other persistent organic toxins, via food chain uptake and subsequent concentrations of these toxins in higher organisms including humans.Short term increases in turbidity, which can affect aquatic species metabolism and interfere with spawning.Release of toxic chemicals (including heavy metals and PCB) from bottom sediments into the water column.The activity of dredging can create the following principal impacts to the environment:
In addition, dredge spoils may contain toxic chemicals that may have an adverse effect on the disposal area furthermore, the process of dredging often dislodges chemicals residing in benthic substrates and injects them into the water column. Dredging can create disturbance to aquatic ecosystems, often with adverse impacts.
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