2875 North Old US Highway 23Howell, MI 48855Phone: 888-CGC-4H2OMonday-Friday 8:00 A.M. – 5:00 P.M.Saturday 8:00 A.M. – 2:00 P.M.
10008 East Grand RiverBrighton, MI 48116Phone: 888-CGC-4H2OMonday-Friday 10:00 A.M. – 5:00 P.M.Saturday 9:00 A.M. – 2:00 P.M.
6920 Jackson Road Suite CAnn Arbor, MI 48103Phone: 888-CGC-4H2OMonday-Friday 9:00 A.M. – 5:00 P.M.Saturday 9:00 A.M. – 2:00 P.M.