It's the start of 2019 and you are an environmental engineer employed by Penrith council. A new landfill site has been installed in the Penrith council area and has been operating over the past year. The local residents are concerned about the build-up of heavy metals, such as lead, in the landfill causing potential contamination of the groundwater in the future.

List three goods and three processes you would monitor throughout the Sydney region. Justify why you think these goods and processes would be important to monitor in your MFA study of lead.