What factors should you consider when adjusting the dewatering system?

You have taken over a project that is experiencing severe site problems. The project is several homes in a future cul-de-sac of 7 homes and your team has just finished the excavation of the basements. The dewatering system cannot keep up with the amount of water and the site is flooded. What are your first steps as the project manager to address the problem? What are the potential causes of the amount of water? What factors should you consider when adjusting the dewatering system?