Hazardous Waste Disposal for San Diego Businesses
Dimension collects hazardous waste from businesses across San Diego County — solvents and coatings from marine and defense contractors, biotech and lab chemicals, contaminated absorbents, waste oil and coolants, and the paints California regulates more tightly than federal rules require.
San Diego converts better than any other metro we serve at this volume: nearly nine in ten businesses that reach a quote here go on to book. We think that is because the requirements are unusually clear once someone explains them, which is what this page tries to do.
This is a business service. San Diego County residents should use the county’s household hazardous waste program — we cannot collect from residential addresses.
Trusted by 10,000+ clients
Nationwide waste partner for Trek Bikes, Instacart, Sares Regis and more! Trusted by state governments of California, Texas and Connecticut.
Ready to get rid of your San Diego?
Get an instant price quote powered by our Mirror Mirror AI. Most orders are priced in minutes.
Get an Instant QuoteProudly Serving
Public Sector
What San Diego County requires — and when you may not need us
The Hazardous Materials Division has been San Diego County’s Certified Unified Program Agency since 1996. Its scope splits in two, and the second half is the part businesses miss. HMD regulates facilities that handle or store hazardous materials at or above 55 gallons of liquid, 500 pounds of solid, or 200 cubic feet of compressed gas — and, separately, facilities that generate or treat hazardous waste in any quantity at all. Storage has a threshold; generation does not.
Reporting runs through the state CERS system rather than county paperwork, and the same account covers your business plan and your generator reporting.
There is a real off-ramp worth knowing about. Businesses generating less than 27 gallons or 220 pounds of hazardous waste per month, and less than one quart or 2.2 pounds of acutely hazardous waste — conditionally exempt small quantity generators — may be able to use the county’s household hazardous waste disposal program for small businesses. If that describes you, that route is cheaper than hiring us, and you should take it.
One more San Diego-specific point: if you want to treat or dispose of hazardous waste at your own site rather than shipping it out, you must notify the department 60 days beforehand through CERS and meet the eligibility and handling conditions. That is a lead time worth planning around, not discovering.
| Requirement | What it means for your business |
|---|---|
| Generation is regulated at any quantity | The 55 gallon / 500 pound / 200 cubic foot thresholds apply to storing hazardous materials. Generating or treating hazardous waste is regulated with no lower threshold. |
| Under 27 gallons or 220 lb a month | Conditionally exempt small quantity generators may be able to use the county’s household hazardous waste program for small businesses. Cheaper than a hauler — check whether you qualify first. |
| CERS reporting | Generators report their hazardous waste to the local regulator through the California Environmental Reporting System, not on county forms. |
| On-site treatment needs 60 days notice | Treating or disposing of waste at your own site requires notifying HMD 60 days in advance through CERS, plus meeting eligibility and handling requirements. |
| An EPA or California ID number | Required for off-site shipments at any volume — California has no equivalent to the federal very-small-quantity-generator exemption. |
Rules change — confirm current requirements with the agency before relying on this page.
Areas we serve around San Diego
We collect across San Diego County — the biotech and research cluster through Sorrento Valley and Torrey Pines, marine and defense work around the harbor and Point Loma, manufacturing in Otay Mesa and Kearny Mesa, and commercial sites through North County from Carlsbad to Escondido. Five providers service hazardous work in this county.
- San Diego County
- Orange County
- Riverside County
- Imperial 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 Diego questions, answered
My business only generates a few gallons a month. Do I still need a hauler?
Possibly not. Businesses under 27 gallons or 220 pounds of hazardous waste per month, and under one quart or 2.2 pounds of acutely hazardous waste, may qualify as conditionally exempt small quantity generators and be able to use San Diego County’s household hazardous waste disposal program for small businesses.
If you qualify, that is the cheaper route and we would rather tell you than sell you a pickup you do not need. Call the county’s Hazardous Materials Division to confirm eligibility.
I store less than 55 gallons. Am I unregulated?
No, and this is the most common misunderstanding here. The 55 gallon, 500 pound and 200 cubic foot thresholds apply to storing hazardous *materials*. Generating or treating hazardous *waste* is regulated in any quantity.
So a business that never stores enough to trip the storage threshold can still be a regulated generator. The two tests are separate.
Who regulates hazardous waste in San Diego?
The County of San Diego, Department of Environmental Health and Quality, Hazardous Materials Division, which has been the county’s Certified Unified Program Agency since 1996.
Unlike Los Angeles County, San Diego County is covered by a single CUPA, so a company with several sites across the county deals with one agency.
Can I treat waste at my own site instead of shipping it?
Sometimes, but it requires notifying the Hazardous Materials Division 60 days in advance through CERS and meeting the eligibility and waste-handling conditions.
That 60-day window catches people out. If on-site treatment is part of your plan, start the notification well before you need it to be in place.
How quickly can you collect in San Diego?
Typically three business days, sometimes two. Loads needing a specialist facility — reactives, unknowns, large lab packs from research sites — can take longer.
You will see the available dates before you confirm, and anything above $5,000 is quoted by our team within one business day rather than priced instantly.
Serving a business outside San Diego? See our nationwide hazardous waste disposal.