Contacting DuBois-Cooper Contact DuBois Cooper today to learn more about water resource recovery and water treatment in the State of Michigan. We are available to answer your questions or meet for an appointment.DUBOIS-COOPER ASSOCIATES, INC905 Penniman Ave,Plymouth, MI 48170Phone: 734-455-6700Fax: 734-455-6711Email: [email protected] Notice: JavaScript is required for this content.