Pesticide Notifications

Contra Costa County Posting and Notification for Pesticide Use on County Property

Posting is required at least 3 days before the pesticide application until at least 4 days after.  The Posting and Notification Policy applies only to County-owned land. Posting is not required on rights-of-way or in locations that the public does not use for recreation or pedestrian purposes.  To view postings click here.