The Manager at Clean Oceans Unlimited, in Virginia, Conducted a Recent

The manager at Clean Oceans Unlimited, in Virginia, conducted a recent meeting with the operations manager to discuss the results of a recent waste audit conducted by the city officials and to develop a new sustainability strategy. The manager announced that the engineer has developed a system that filters the storm-water runoff into the canals that flow into the Chesapeake Bay. The cost of the new system is $5,500,000. The new system is expected to eliminate bacteria in run-off water and it is expected to reduce the level of water pollution that flows into the Chesapeake Bay. The new system is expected to generate taxes payable to the company of up to $2,500,000 in storm-water fees each year. The pump is expected to have a life of 20 years.
Compute the payback period, in years. With respect to the business, should the manager at Clean Oceans Unlimited implement this new sustainability strategy? Include a discussion about the three factors that relate to sustainability (environmental, economic, and social factors).