Storm Water
Stormwater is rain that does not get absorbed into the ground. It flows into storm drainage systems and is washed directly into local bodies of water, such as creeks and rivers. Stormwater can also refer to any runoff that occurs from washing cars, power washing impervious surfaces, overwatering of lawns and gardens, or other sources.
Because stormwater receives no treatment or filtration, it carries pollutants into local creeks, sloughs and Humboldt Bay. In general, if a pollutant enters a storm drain, it will discharge directly into the nearest creek or waterway with no further treatment before it enters Humboldt Bay and then the ocean. Federal, state and local laws require that businesses and citizens put only rain down the drain!
For additional information about stormwater and non-point pollution, check out the following resources:
Humboldt Bay is the second-largest estuary in California and the most ecologically diverse coastal embayment on the U.S. West Coast. It provides habitat for hundreds of thousands of migratory water birds. It is home to more than 100 fish species and 350 invertebrate animal species - many of which are commercially valuable and dependent on the Bay for spawning and rearing habitat.
Run-off from the storm drains can have a significant impact on the water quality of the Bay. During the rainy season, large amounts of pollutants flow into the bay, depositing toxins and sediments. Because the Bay is large and shallow but has such a small mouth, it does not flush well. Thus, pollutants build up, potentially degrading the water quality. Polluted stormwater run-off presents an ongoing hazard for the fish, birds, and other wildlife living in and around the Bay and for all who use and enjoy it.
Storm drains are meant to divert storm water from our streets and prevent flooding. They lead straight to creeks and Humboldt Bay without filtration. It is against the law to throw anything into the street, gutter, or creek - like litter, leaves, cigarettes, pet waste, restaurant wash water, or auto fluids like motor oil. If these items are in the street or gutter, they will wash into a storm drain and pollute our creeks and Humboldt Bay. Federal, state, and local laws require that businesses and citizens put only rain down the drain!
So please, help keep our creeks and Humboldt Bay clean by not washing materials into streets and gutters.
Call the City at 707-822-8184 if you see any large or hazardous items in the street or gutter, or email reports to the Environmental Services Department.
Posters and Brochures
- Scoop the Poop
- Paint brush rinsing
- Leaky vehicle
- Fertilizer
- Car washing
- Cigarette Butts
- LID Brochure (PDF)
- Business Guide for Landscaping (PDF)
- Mobile Food and Restaurant Guidelines for Water Quality Protection (PDF)
- Humboldt Bay Starts at Your Street Brochure (PDF)
- Humboldt LID Stormwater Manual V3.0 (PDF 12.3 MB)