Hazardous Waste Disposal for San Francisco Businesses
Dimension collects hazardous waste from businesses across San Francisco and the Bay Area — solvents, corrosives, oxidizers, contaminated absorbents, lab chemicals, and the paint and used oil that California regulates more tightly than most states. We handle the manifesting and transport, and every pickup closes with documentation you can file.
If you generate hazardous waste in California, you are regulated whether you produce a drum a week or a single pail a year. California does not offer the federal very-small-generator exemption, which is the single most common compliance surprise for small San Francisco businesses. We size the service to what you actually generate rather than pushing you onto a route you do not need.
This is a business service. If you have household hazardous waste, San Francisco residents should use the city’s household hazardous waste drop-off program instead — we cannot collect from residential addresses.
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Public Sector
What San Francisco and California require of your business
California runs hazardous waste oversight through a network of roughly 81 Certified Unified Program Agencies covering all 58 counties. In most counties that is the county environmental health department; in San Francisco it is the Department of Public Health’s Environmental Health Branch, which administers hazardous waste generator oversight, Hazardous Materials Business Plans, aboveground petroleum storage and CalARP for every business inside city limits.
That matters because your obligations are set locally even though the underlying rules are statewide. A business in San Francisco reports to a different agency, on a different renewal cycle, than the same business in Oakland or San Jose. San Francisco requires generators to renew their plans 30 days before the permit expiration date, which is earlier than most California counties.
California’s hazardous waste rules are also broader than the federal RCRA baseline. The state recognizes categories of non-RCRA hazardous waste that federal rules do not, applies a stricter empty-container standard, uses its own manifest requirements and requires annual reporting with no federal equivalent. Used oil is treated as hazardous waste in California even when it exhibits none of the federal hazardous characteristics, and many paints are captured the same way. A business that is fully compliant with federal rules can still be out of compliance with DTSC.
| Requirement | What it means for your business |
|---|---|
| An EPA or California ID number | Required to ship hazardous waste off site. California has no equivalent to the federal very-small-quantity-generator exemption, so there is no volume low enough to skip this. Numbers are issued by US EPA or DTSC. |
| Uniform Hazardous Waste Manifest | Every off-site shipment must travel with one, carrying your generator ID and site address. We prepare and provide it on each pickup. |
| Hazardous Materials Business Plan | Required once you hold hazardous materials at or above threshold quantities, filed through the state CERS system and renewed with SF DPH — 30 days before expiry in San Francisco. |
| Small quantity generator re-notification | Generators of less than 100 kg of non-acute hazardous waste per month must re-notify DTSC every four years on EPA form 8700-12, a cycle that began in 2024. |
| California-only waste categories | Used oil, many paints, and certain metal-bearing and low-flashpoint materials are hazardous in California regardless of federal status. Tell us what you have and we will classify it before pickup. |
Rules change — confirm current requirements with the agency before relying on this page.
Areas we serve around San Francisco
We collect across San Francisco and the wider Bay Area, from the Financial District and Mission Bay through Bayview–Hunters Point and the industrial corridors along the 101 and 880. Bay Area businesses are our deepest market, with more servicing providers here than anywhere else in the country, so pickups are typically scheduled within three business days and often two.
- San Francisco County
- San Mateo County
- Alameda County
- Contra Costa County
- Santa Clara County
- Marin County
Case Studies
A large furniture manufacturer came to Dimension with the problem this page exists to solve: not one waste stream, but several at once. Oil-based paints from the finishing line, used motor oil from the maintenance shop, and an assortment of other chemicals that each needed specialized handling — and no straightforward, compliant way to get rid of any of it. Getting it wrong risked regulatory penalties, environmental damage, and real health risks to their employees and the surrounding community.
Dimension took the whole mix. A dedicated account manager scheduled each service inside a narrow time window so nothing accumulated past its limit on site, trained professionals transported the material to a licensed, EPA-approved disposal facility in line with every applicable transportation regulation, and Dimension managed the documentation end to end — manifests and certificates of disposal covering city, state and federal requirements. A customized pricing scheme brought the total cost down at the same time.
That is the shape of a hazardous-waste program done properly, and it is what a single booking on this page starts: the classification handled with you, every stream routed to a facility permitted to take it, and the paperwork back in your hands afterward.
What Hazardous Waste Disposal With Dimension Looks Like
- Quote and schedule: Describe your waste in plain language — the materials, rough quantities, and container sizes, anywhere from 1-gallon cans and 5-gallon pails to 55-gallon drums and 550-gallon totes. You can attach photos of the labels if you're unsure. Most orders are priced instantly by our Mirror Mirror AI; mixed, unlabeled, or high-volume loads go to our team for a manual quote within one business day. Plan on about five business days of lead time for the pickup.
- Compliant transport: A provider from our nationwide network of DOT- and RCRA-trained, EPA-certified transportation partners arrives on site, verifies and loads the material, and applies the correct DOT labels, placards, and shipping papers for each stream. We serve every zip code in the country except New Jersey, from 8 AM to 8 PM local time, and can put recurring pickups on a set schedule if your waste accumulates on a predictable cadence.
- Documented disposal: Each stream goes to a licensed facility approved for that material — solvents recovered, oils re-refined, metals reclaimed where the material allows, and the rest destroyed under permit. You get the records back: hazardous waste manifests, Bills of Lading, and a diversion report showing what happened to each stream, so your compliance file is complete without you chasing anyone for paperwork.
San Francisco questions, answered
Do I need an EPA ID number for a small amount of hazardous waste?
In California, almost certainly yes. Federal rules exempt very small quantity generators, but California has no equivalent exemption — if you ship hazardous waste off site, you need an ID number issued by US EPA or DTSC.
This catches a lot of small San Francisco businesses: auto shops, salons, dental practices, print shops and labs that assume their volume is too low to register. If you are unsure, tell us what you generate and we will tell you where you land before you book.
Who regulates hazardous waste for a business in San Francisco?
The San Francisco Department of Public Health, Environmental Health Branch, acting as the city and county’s Certified Unified Program Agency. It handles generator oversight, Hazardous Materials Business Plans and Unified Program inspections inside city limits.
Businesses just across a county line report to a different CUPA on a different cycle, so a company with sites in San Francisco and Oakland is dealing with two agencies rather than one.
Is used oil hazardous waste in California?
Yes. California regulates used oil as hazardous waste even when it does not exhibit any of the federal hazardous characteristics, which is stricter than the federal Used Oil Management Standards alone.
That means used oil from a San Francisco business needs a permitted transporter and a manifest, not a general waste hauler. We handle used oil collection on the same compliant footing as the rest of your hazardous streams.
How quickly can you collect in San Francisco?
Typically three business days, and two in well-served markets — the Bay Area is our densest provider network, so scheduling here is faster than most of the country.
Large or unusual loads that need a specialist facility can take longer. You will see the available dates before you confirm.
Can you collect household hazardous waste from my home?
No. Hazardous waste collection is a business-only service for us. San Francisco residents should use the city’s household hazardous waste program, which accepts paint, solvents, batteries and similar materials from households at no charge.
Serving a business outside San Francisco? See our nationwide hazardous waste disposal.