$.(15$ points$)$ A city wastewater treatment plant is working on a project to reclaim energy

from waste methane generated by the plant's anaerobic digester.

The project cost is anticipated at $$2,100,000.$ The digester will cost $$75,000$ per year to

operate. The digester will require major rebuilding at year $10$ and year $20$ at a cost of

$$250,000$ per rebuild. The project will generate energy cost savings to the plant of

$$375,000$ per year. The project life is $30$ years; there is no significant salvage value at

project end.

Use CONVENTIONAL BENEFIT$-$COST ANALYSIS to determine whether the project is

worth pursuing. Use a MARR of $15\%.$