Report Sewer Overflow To report a sewer overflow, please provide the following information: If a hazardous substance is threatening human health or entering the storm drain, call 911 immediately. Contact Email Address Address where the incident is located Address or Location of Incident Description of sewer backup incident: Please include a brief description, including date(s) and time(s) of occurrence to better assist with our follow up. Describe the incident If you have questions or need to report a water emergency, please contact Municipal Services at 209-668-5590. Submit