The San Francisco Bay is part of your daily life. Every drop of water we use at home and work drains into San Francisco Bay. Wastewater travels from kitchens and bathrooms to wastewater treatment plants before it's discharged to the Bay. Treatment can remove many pollutants, but some complex chemicals may resist degradation and pass through to the Bay. Stormwater from roads, sidewalks and gardens flows into storm drains and directly into creeks and the Bay without treatment. (Except in San Francisco, where some stormwater is treated at wastewater treatment plants.)
Stormwater carries all sorts of things straight to our creeks and the Bay: herbicides and pesticides from lawns and gardens, litter, pet waste, detergent from car washing, and everything else that doesn’t get disposed of properly in trash cans.
Because wastewater and stormwater can carry pollutants from everyday activities like cooking, gardening, maintaining your car, and even spring-cleaning your garage and medicine cabinet, it's important to prevent pollution at the source.