The mitigation strategy and the health action plan established by the company should include 1) long-term monitoring and evaluation (M&E), and 2) verification programs.
Monitoring
For a large and geographically diverse project, a formal system of monitoring (surveillance) should be considered, and as appropriate, the local health information system should be reviewed for fit and reliability (Ezzati, 2005).
For the M&E plan to capture early effects and unanticipated consequences, it should be based on appropriate, applicable, and relevant key performance indicators (KPIs) (World Bank, 2004). Defining KPIs can be a complex undertaking, and specialized consultation is often advisable.