EFFECTIVE IMMEDIATELY – Sumpter Township and SPECIFIC facilities are CLOSED TO THE PUBLIC. Please refer to the posted notice below for further information. Thank you.: Department Phone List Building Department (734) 256-4420 Water Department (734) 256-4415 Treasurer’s Office (734) 256-4417 Supervisor’s Office (734) 256-4411 Assessor (734) 256-4413 Finance/AP (734) 256-4419 Clerk’s Office (734)256-4407 Senior’s Center (734)461-9373