Only rainwater should flow into storm drains to protect the health of our creeks and San Francisco Bay. Accidental spills or illegal discharges of pesticides, pool water, wash-waters, sewage, automotive fluids, paint, construction materials, sediment, silt, and food wastes should be reported (see side panel on this page for whom to call). Please contact us when:
- you observe anyone pouring or dumping material into the storm drain, or if you see dumped wastes and materials in or near the storm drain;
- there are unusual odors in or near the storm drain indicating a hazardous spill;
- the storm drain system has larger than normal flows during dry-weather periods.