Caledonia Township has three warning sirens located in the following areas:
- 76th Street Water Tower, 5770 76th Street (between M-37 and Kraft Avenue)
- Campau Kettle Lake Sewer Plant, 6570 McCords (just north of 66th Street)
- Glen Valley Water Tower, 9111 Alanada Drive (west of Glen Valley subdivision)
During the months of April through October, warning sirens are tested the first Friday of every month at noon. View further information regarding warning sirens or information on how to prepare for an emergency.