Audible monthly siren tests normally occur on the first Friday of each month from March through November.
With many special events and visitors to Ottawa County during the Fourth of July holiday, officials have decided to refrain from audible siren testing on Friday in part to avoid confusion for those visitors who may be unaware of the test schedule.
The Ottawa County Emergency Operations Center does ensure that the sirens are properly functioning on a daily basis 365 days per year. This is accomplished through a computer system which tests the sirens three times per day to ensure there is communication between the control point and each individual siren.
The next audible monthly test is scheduled for Aug. 1.