The Overfill Fee on Contra Costa Black Carts: What It Is and How to Avoid It
RecycleSmart is charging $10 per occurrence for overfilled black landfill carts. Here’s what counts as overfilled, which weeks catch people out, and the cheaper ways to handle extra waste.
Key takeaways
- RecycleSmart is applying a $10 per occurrence fee for overfilled black landfill carts starting 1 November 2026.
- A cart counts as overfilled if the lid will not shut properly, material extends past the rim, or waste has been compacted in.
- The fee applies across the RecycleSmart area, which covers Danville, Walnut Creek, Alamo, Blackhawk, Diablo, Lafayette, Moraga, and Orinda.
- Right-sizing your cart, using the green organics cart properly, and booking on-call cleanups are all cheaper than repeat fees.
- The weeks after holidays and big projects are when most households get caught.
Starting 1 November 2026, RecycleSmart is charging $10 per occurrence for overfilled black landfill carts. The test is not subjective: if the lid will not shut securely, or material extends past the rim, or waste has been compacted to cram more in, the cart counts as overfilled.
That applies across the RecycleSmart area, which covers Danville, Walnut Creek, Lafayette, Moraga, Orinda, and unincorporated Alamo, Blackhawk, and Diablo. San Ramon, served by ACI, runs its own separate extra-garbage rules.
What counts as overfilled
Three conditions, any one of which is enough:
- The lid will not close properly. Propped open by a bag, or resting at an angle, counts.
- Material extends beyond the rim. Anything sticking up out of the container.
- The waste has been compacted. Pressing down to squeeze in one more bag is specifically called out.
The short version is lid flat, or it is a fee.
Why the lid rule exists in the first place
Overfill rules are not purely about billing. A cart with a propped lid is a cart that leaks. Loose material blows out on collection day, rain pools inside, and the open gap is an invitation to flies during the day and raccoons and rats at night.
It also makes a mess of the truck’s automated arm. A cart that will not seat properly is a cart that spills.
So the fee mostly punishes something that was already costing you in odor and pests. If your lid has been propped open all summer, you have almost certainly been feeding a fly population, and probably something larger at night.
The weeks that catch people out
Very few households overfill every week. It happens in bursts:
- The week after Thanksgiving and Christmas. Guests, packaging, and food waste all at once.
- After a garage or closet clear-out. The classic mistake is treating the black cart as the disposal route for a project that needed a different service.
- Move-in and move-out weeks. Boxes, packing material, and whatever the previous owner left behind.
- Yard projects. Trimmings forced into the landfill cart when they belong in the green one.
The cheaper options
| Situation | Better route than overfilling |
|---|---|
| Cart is full most weeks | Request a larger black cart from Republic Services at 925-685-4711 |
| Overflow is food scraps | Use the green organics cart, which takes meat, dairy, bones, and cooked food |
| Overflow is yard trimmings | Green cart, or the on-call service for larger volumes |
| One-off clear-out | Reuse & Cleanup Days and free on-call curbside services through RecycleSmart |
| Furniture or appliances | Bulky item pickup, not the cart |
For how bulky pickups work on both sides of the valley, see bulky item pickup in Danville vs San Ramon.
The organics cart is the underused one
Many households pay for extra landfill capacity they do not need, because food waste is still going in the black cart out of habit. Moving it to the green cart frees up real space.
The trade-off is that it makes the green cart dirtier and smellier, which is why bin cleaning and organics collection arrived together as a household problem. Our guide to why the green cart smells covers how to keep that manageable.
Where we fit
We cannot make your cart bigger. We can make sure that when the lid closes, you are not sealing in a week of residue.
Bin Bliss deep cleans and sanitizes bins at the curb the day after pickup, across Contra Costa County: high-pressure wash, EPA-registered disinfectant, wash water captured, and a fresh scent to finish. First cleaning from $49. Text CLEAN to (888) 888-8888.
Fees and program rules change. Confirm the current terms with Republic Services at 925-685-4711 before assuming anything in this article still holds.
Sources
Frequently asked questions
How much is the overfill fee?
$10 per occurrence on overfilled black landfill carts, beginning 1 November 2026 under the RecycleSmart program. Confirm current terms with Republic Services at 925-685-4711, since fees can change.
What counts as an overfilled cart?
A cart whose lid will not close securely, one where material extends beyond the container rim, or one where waste has been compacted to force more in. The practical test is simple: if the lid does not shut flat, it is overfilled.
Which cities does this apply to?
The RecycleSmart service area, which includes Danville, Walnut Creek, Lafayette, Moraga, Orinda, and the unincorporated communities of Alamo, Blackhawk, and Diablo. San Ramon is served by ACI and runs its own extra garbage rules.
What should I do if my cart is always too full?
Ask about a larger black cart by calling Republic Services at 925-685-4711. If the overflow is food waste and yard trimmings, the fix may be using the green organics cart properly instead of paying for more landfill capacity.
Does a cleaner cart hold more?
A little, since caked residue takes up space and makes bags stick. The bigger benefit is that a cart with a lid that closes properly keeps flies, rain, and animals out, which is where most odor problems start.
Keep reading
When Is Trash Pickup in Danville? Schedule and Holiday Delays
Danville’s carts are collected weekly by Republic Services under RecycleSmart. Only two holidays delay collection. Here’s how to find your day, what shifts, and what doesn’t.
Bulky Item and Cleanup Day Pickup: How It Works in Danville vs San Ramon
Two neighboring towns, two completely different systems for getting rid of a couch. Here’s what each program covers, the timing rules, and how to avoid a citation or a missed pickup.
How to Keep Raccoons, Rats, and Possums Out of Your Bins in the Tri-Valley
Backing onto open space means nightly visitors. Odor draws them from a distance, so the fix is a sealed lid, a secured cart, and removing the residue they can smell.
Disclaimer: This article is for general informational purposes and reflects the information available to us when it was written. It isn’t medical, health, or professional cleaning advice. Collection schedules, fees, and local rules change, so confirm current details with your city or hauler before relying on them. Always follow the directions on any cleaning or disinfecting product’s label, never mix cleaning chemicals, and check your city’s rules before letting wash water run into a street or storm drain. We make no warranty as to accuracy or completeness and provide this content “as is.” Product names and trademarks are the property of their respective owners.