17.27 An aluminium refinery in Gladstone is planning to implement an environmental

management project. The project is to purchase new equipment that will lower operating costs and reduce emissions from the refinery, which are currently spread over nearby residential districts.

	Additional costs	Cost savings	Reduction in emissions (tonnes of airborne particles)
Initial outlay	$578 000
Year 1	289 000	$41 000	50
Year 2	260 000	41 000	50
Year 3	250 000	41 000	50
Year 4	250 000	41 000	50
Year 5	250 000	41 000	50

It is estimated that each tonne of emissions currently causes health costs that average $2 per annum for each of Gladstones 50 000 residents.

Required:

1. Calculate the net financial cost to the refinery of investing in the new equipment.

2. Calculate the financial cost or benefit to the community over the five years.

3. What other information might you need to gather in order to undertake a more comprehensive analysis of the project?