Regional research reference
The institutional WildFIRE PIRE research page includes Tasmania and Australia in its discussion of fire, vegetation, climate and land use. That historical research context does not provide a chemical-treatment specification for an individual catchment.
Questions for a local response
Identify the affected water source, land-use history, sediment pathways and intended use of collected water. Describe observed changes rather than assuming that another catchment's treatment result will apply. Include local technical and environmental responsibilities before proposing contained chemical trials.
Compare sampling-plan questions with the current purchasing guides. Product selection requires its own evidence and must remain separate from historical research attribution or presumed institutional endorsement.