A mining company is considering a new project. It has received a permit, so the mine would be legal, but it would cause significant harm to a nearby river. The firm could spend an additional $10 million at Year 0 to mitigate the environmental problem, but it would not be required to do so. Developing the mine (without mitigation) would cost $60 million, and the expected net cash inflows would be $20 million per year for 5 years. If the firm does invest in mitigation, the annual inflows would be $21 million. The risk adjusted WACC is 12%.

Calculate the NVP and IRR with and without mitigation?