Renting a roll off dumpster is a convenient solution for managing waste from construction projects, remodels, or large cleanouts. However, just like household trash bins, roll off dumpsters have guidelines on what can and cannot be put in them. Knowing which items are prohibited is important for protecting both the environment and your wallet from potential fines.
Why Does Proper Disposal Matter?
Every community has local waste ordinances to ensure proper disposal and protect both residents and the environment. When hazardous materials like batteries, electronics, and chemicals are improperly discarded, they can release toxins into the environment, contaminating local soil and groundwater. This can also cause serious harm to local agriculture, wildlife, and human health.
Recycling and following waste management guidelines are crucial to preventing such harm. By keeping hazardous materials out of landfills, we can create a cleaner, safer, and more sustainable community for everyone.
What can you not put in a roll-off dumpster rental?
Each roll off dumpster rental company may have its own list of prohibited items, but certain waste materials are typically restricted for safety and environmental reasons. Use the following list of commonly banned items as a general guideline, and always confirm prohibited items with your rental provider.
Batteries
Many types of batteries contain hazardous materials like heavy metals and lead, making it unsafe to dispose of them in dumpster rentals. Proper disposal depends on the battery type:
- Alkaline Batteries: Most single-use alkaline batteries can go in the trash and dumpster rentals, except in California, where all batteries must be recycled. Before disposal, tape the terminals with electrical tape or place each battery in a plastic bag to prevent short circuits and fires.
- Rechargeable Batteries: These should NEVER be disposed of in household trash or dumpster rentals. This includes lithium-ion, nickel-cadmium (Ni-Cad), nickel-metal hydride (Ni-MH), button-cell, and small sealed lead-acid batteries. They must be recycled at designated facilities or participating retailers. Locate a nearby recycling center in Colorado here.
- Car Batteries: Dispoing of car batteries in landfills is prohibited in Colorado and other states. Recycle car batteries at an authorized center or auto parts store.
- Other Batteries: For specialty batteries like silver-oxide or industrial types, contact your local waste authorities or search online for safe recycling options.
Electronics
Electronic waste, or e-waste, is prohibited in most landfills and dumpster rentals due to the hazardous materials and heavy metals it contains, such as lead, mercury, chromium, and silver. Common e-waste items include:
- Central processing units (CPUs)
- Computer monitors, peripherals, and printers
- DVD players, video cassette recorders (VCRs), radios, and stereos
- Fax machines, laptops, notebooks, ultrabooks, netbooks, and tablets
- Television sets
- Video game consoles and video display devices with screens larger than four inches diagonally
Improper disposal of e-waste can result in these hazardous materials contaminating soil and groundwater, posing significant environmental risks. To address this issue, Colorado’s SB12-133 prohibits the disposal of specific electronic devices in landfills.
It is essential for households to manage e-waste responsibly by recycling it through legitimate recyclers or approved collection events. Before recycling, all personal information should be securely removed from hard drives.
Flammable Materials
NEVER dispose of flammable materials in a dumpster! Items such as gasoline, oil, aerosol cans, lighters, lighter fluid, propane tanks, and other flammable liquids can ignite or even explode when exposed to heat, sparks, or pressure, potentially causing trash fires during transportation or at the landfill. This creates serious safety risks, including potential injuries to waste management workers and damage to waste facilities.
Hazardous Waste
Hazardous waste should NEVER be tossed into a rented dumpster unless it’s specifically designed for that purpose. When improperly disposed of, hazardous waste can seep into the soil and groundwater, putting ecosystems and public health at risk. Examples include:
- Asbestos
- Cleaning agents with strong chemicals like bleach and ammonia
- Medical waste like contaminated needles or biological materials.
- Mercury-containing items like thermostats or fluorescent tubes
- Oil and oil filters
- Pesticides and herbicides
- Radioactive or corrosive materials and liquids
If you need to get rid of hazardous waste, reach out to your local waste management facility for guidance as they often offer drop-off services to handle these materials safely.
Paint & Paint Cans
Paint, paint thinners, stains and varnishes are typically NOT allowed in dumpster rentals or landfills because they are classified as hazardous waste. If improperly disposed of, chemicals and toxins in paint and paint cans can seep into the soil and groundwater, creating serious environmental risks for the surrounding community. Oil-based paints are especially problematic due to their flammability and can cause trash fires during transportation or worse in the landfill.
Fortunately, many cities provide free, convenient recycling options for unwanted or leftover paint. In Colorado, you can take your unused paint to participating recycling locations, where it is safely processed to protect the environment. Find a paint disposal location near you.
Tires
Many cities DO NOT allow tires in landfills (and therefore they are prohibited in dumpster rentals) because they can trap methane gas that forms as waste breaks down. The pressure from these gases can cause tires to rise to the surface and damaging the landfill’s protective liner that prevents pollutants from being released into the air. Tires can also be a serious fire hazard—once they catch fire, they’re extremely hard to extinguish, and the flames can spread to other waste, releasing harmful toxins into the air. Luckily, many cities have tire recycling programs that repurpose old tires into playground surfaces, fuel, or rubberized asphalt, reducing waste and promoting sustainable reuse.
In Colorado, Senate Bill 141 (SB05-141) made it illegal to dispose of tires with your regular trash. However, many auto shops will take your old tires for a small fee—usually around $2 to $2.50 per tire.
Varies From Company to Company
Appliances
The rules for disposing of appliances in a dumpster rental vary by service provider. Many companies accept non-Freon appliances like stoves, ovens, washers, dryers, dishwashers, and microwaves. However, it’s important to confirm with your rental company beforehand.
Appliances containing Freon, such as refrigerators, freezers, and air conditioners, are typically prohibited due to the need for proper refrigerant removal to prevent environmental harm.
Denver residents can also utilize the city’s Solid Waste Management program, which provides free appliance collection by appointment. This service ensures metals are recycled, and refrigerants are handled safely.
Heavy Materials
Mattresses
Mattresses take up significant space in landfills, and disposing of them in a roll-off dumpster is generally discouraged. Many dumpster rental companies explicitly prohibit mattress disposal, so it’s essential to check with your rental provider about their policies before attempting to dispose of a mattress in a roll-off.
If your mattress is in good condition, consider donating it to a local charity that accepts gently used items. Alternatively, reach out to the manufacturer to see if they offer a recycling program, as many do.
For mattresses that are no longer usable, you can arrange a large-item pickup through your residential trash company. This service is often available during designated collection times and provides a convenient way to responsibly dispose of bulky items.
Rent From Denver’s Leading Dumpster Rental Company
Whenever you’re unsure about disposing of certain items, contact your local waste disposal facility or environmental authorities to clarify local waste ordinances and regulations. You can also check with your Denver dumpster rental provider to see if they offer a container suited to your specific needs. Whether you’re tackling a big construction project or a simple cleanout, Humpty Dump Roll-Offs & Dumpsters has the perfect dumpster size for the job. Call 1-844-HUMPTYD for all your roll-off dumpster rental needs!
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