Storm Drain Rules for Businesses in San Francisco
Businesses operating in San Francisco, California must prevent pollutants and debris from entering the city storm drain system. This guide explains who is responsible, routine maintenance expectations, reporting pathways, and practical steps to reduce flood and water-quality risks. It summarizes applicable municipal programs and points you to the main city departments to contact for inspections, permits, and complaints.
Who must comply
Owners and operators of commercial properties, loading docks, garages, restaurants, construction sites, and any business that stores or handles potential stormwater pollutants are required to keep adjacent storm drains clear and to prevent discharges that could contaminate public waterways. Local businesses should adopt basic best management practices (BMPs) such as debris control, dry cleanup, and proper waste storage.
Maintenance standards
- Inspect drains and catch basins regularly, especially before the rainy season and after storms.
- Remove leaves, sediment, and trash from gutters, curb inlets, and private drainage features so water can flow to the public system.
- Use absorbents and dry cleanup methods for spills; never wash pollutants into the gutter or street.
- Keep written records of inspections and cleaning schedules; retain contractor receipts and manifests when work is outsourced.
- Ensure construction and renovation sites use approved erosion and sediment controls and cover stockpiles to prevent runoff.
Penalties & Enforcement
Fine amounts: not specified on the cited page; see the SFPUC Stormwater Program for program details SFPUC Stormwater Program[1]. Escalation for repeated or continuing violations is not specified on that page. Non-monetary sanctions may include written correction orders, stop-work orders for construction sites, mandated cleanup, abatement actions, and referral to city attorney or court for injunctive relief; specific procedures and timelines are administered by city departments.
Enforcers and inspection pathways:
- Primary enforcement: San Francisco Public Utilities Commission and Department of Public Works for municipal stormwater programs and public-right-of-way drainage issues.
- Complaints and reporting: use the city 311 system or department complaint portals to request an inspection or report illegal discharges.
Applications & Forms
No single city maintenance form for routine business cleaning is published on the cited program page; businesses typically use contractor invoices, BMP plans, or DBI permit applications where construction or permanent alterations are required. For construction stormwater controls, see building and public works permit requirements.
Common violations and typical outcomes
- Leaving debris or grease that blocks a catch basin — often results in a cleanup order and reinspection.
- Improper disposal of wash water or hazardous waste to the gutter — may lead to orders to remediate and potential fines.
- Uncontrolled sediment from construction sites — typically requires sediment control installation and possible stop-work orders.
FAQ
- Who is responsible for storm drain maintenance next to my business?
- Property owners and business operators are responsible for keeping adjacent private gutters, inlet screens, and on-site drains free of pollutants and debris.
- How do I report a clogged or overflowing storm drain?
- Report public-right-of-way blockages and discharges through San Francisco 311 or the relevant department complaint portal; emergencies should be reported immediately.
- Do I need a permit to clean or modify a storm drain?
- Routine cleaning usually does not require a permit, but altering public drains or making structural changes typically requires permits from DBI or Public Works.
How-To
- Inspect: walk your frontage monthly and after storms to check inlets, grates, and gutters.
- Clean: remove leaves, trash, and visible sediment; use dry methods and collect debris for proper disposal.
- Document: keep dated photos and receipts for cleaning and contractor work.
- Report: use 311 or department portals to request city removal for public catch basin blockages or to report illegal discharges.
- Permit: for structural changes, consult DBI or Public Works and submit required permits before work begins.
Key Takeaways
- Regular inspection and dry cleanup prevent most storm drain problems.
- Maintain records of cleaning and contractor work to show compliance.
Help and Support / Resources
- San Francisco Public Utilities Commission - Stormwater Program
- SF Environment - Clean Water & Stormwater
- San Francisco Department of Building Inspection (DBI)