06 Nov Environmental Management Plan for an Arsenic Groundwater Plume
A review of management options for an arsenic groundwater plume was undertaken for a large agrochemical works based in Kwinana, Western Australia
THIS IS AN HISTORICAL PROJECT
A review of existing site operations, historical spillages and leaks, and existing monitoring data was undertaken. Contamination within
groundwater was present from residue spillages from a manufacturing plant, and leakage from former waste disposal operations, causing a arsenic groundwater plume requiring an environmental management plan.
Walkover surveys with additional groundwater sampling were undertaken,
together with preliminary hydraulic testing.
An occupational health and safety risk assessment addressing health risks to site workers was undertaken due to the presence of arsenic in soil and
A review of chemical treatment options was undertaken for the removal of arsenic from the recovered water.
In order to identify options for pumped recovery of the plume and recharge of treated water, a numerical groundwater model was used . Hydrualic containment and recovery was modelled using reverse particle-tracking techniques.
A cost review was undertaken of all recovery and treatment options. Recommendations were made for implementation of the arsenic
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