The City of Petaluma maintains remote automatic sensors to gauge stream and river levels throughout the year. This information is particularly important during the winter, when heavy rainfall causes flooding.
Note: This data is being supplied for general information only. The below stream gauges reflect elevations, in feet above sea level, not the actual depth of the stream, at a given point in time. The City of Petaluma makes no warranty, expressed nor implied, regarding the accuracy or currency of the data provided.
Be Flood Ready...and Flood Smart!
Certain areas of Petaluma are at risk of flooding during and after heavy winter storms. Be prepared by taking the following actions:
1. Identify whether your home or business is in the flood plain.
2. Make sure you are properly insured.
3. Develop an emergency plan for your family. In the case of businesses, develop a continuity plan to protect your operation; be sure to inform staff about how you will handle flooding situations.
4. Sign up for City Nixle Alerts.
5. Businesses: Provide the Economic Development Division with Emergency Contact Information so that the City can let you know if your site is being affected by flooding or other emergency.
6. Keep leaf litter and other debris out of the storm drains near your property.
7. When heavy storms are predicted, take precautions:
- Review our Flood Safety Tips.
- Put up sand bags or erect flood barriers in front of your property.
- Move valuables or business assets (e.g., auto fleet) that could be destroyed in the event of flooding.
- Tell staff what to do and let customers know what to expect if flooding is predicted.
Emergency Contact Info
Report a Water, Sewer, or Storm Water Emergency
Call Public Works at 707.778.4546.
During some flood events sand and sandbags are made available from an un-staffed station located at the end of Hopper Street. Shovels are provided for you to bag your own sand.
Other sandbag locations (for purchase only):
429 N McDowell Blvd
Petaluma, CA 94954
Phone: (707) 774-8400
8150 Gravenstein Hwy
Cotati, CA 94931
Phone: (707) 792-4695
Marin Landscape Materials
7596 Redwood Blvd
Novato, CA 94945
Phone: (415) 897-1337
Do some planning before winter storms hit, so that you can respond to potential flooding situations at home and at work.
Public Works Team