Contamination in the carts
What exactly is “contamination”?
Contamination is when the wrong items are put in the wrong bins.
Each of your blue, green and black cart programs has specific materials that are ok to go in these bins. Anything other than the listed materials or properly prepared materials could be considered a contaminant. Sorting your waste into the right bins is necessary so that material ends up at the right facility to be turned into new products or to go for final disposal.
A single piece of contamination in the bin can have far-reaching, long lasting impacts. The consequences of contamination create real challenges that impact the health and safety of workers, the waste facilities and increase program costs for Calgarians.
Contamination is when the wrong items are put in the wrong bins.
Blue cart filled with non-recyclable materials.
Contamination concern #1
Safety Hazards
One of the biggest impacts of incorrect sorting are major safety hazards that could harm your collector and the staff that work at the composting facility, recycling sorting facility and at the landfill.
When these safety incidents occur, it often results in work stoppages to deal with the hazard immediately to prevent it from getting it worse. In some instances 911, EMS and the Calgary Fire Department have to get involved using up emergency services. Many of these incidents can be prevented by making sure that items are disposed of properly.
Click on the images below for more information on several safety hazards.
Contamination consequences for Calgarians
Putting the wrong items into your blue, green and black carts can lead to consequences for you at home including:
- Your bin(s) may be left uncollected until the contamination issue is fixed
- Repeat contamination offenses can lead to bylaw enforcement and fines
- Increased program fees on your ENMAX bill that impact all Calgarians that use the cart programs
Contamination concern #2
Damage to equipment
Contamination can also result in major damage to the equipment on the collection trucks and at the facilities. Not only is replacing and repairing damaged equipment costly, but this type of damage also leads to lost production time with work delays, stoppages and even losing access to the necessary technology to manage our waste.
Did you know?
Contamination applies to all three of your bins. There are some items that don’t belong in any cart like electronics, chemicals, propane tanks, batteries and more.
Green cart filled with household materials.
Contamination concern #3
Lower quality of materials to become new items
For recycling and composting programs to be effective they must be able to provide quality materials to the end manufacturers. That means the compost shouldn’t have plastic bits in it and the recyclables need to be empty and clean.
When the wrong items end up in the wrong bins, it can add up to some costly mistakes. Sometimes, that even means having to landfilling materials if there’s just too much of the wrong items instead of the right ones.
The more contamination, the more it costs all of us
For example, the recycling facility charges The City and blue cart homeowners with extra fees to cover the costs of dealing with contamination. In 2021, the Blue Cart program paid out almost $2,000,000 in penalties, transportation and disposal of contaminated materials.
Preventing contamination in the bins
Help keep our blue, green and black cart programs safe for everyone by keeping these contamination items out!
The City picks up waste from 330,000 households each week. That’s a lot of bins that get emptied and material that needs to be taken away. Putting the right items into the bins will allow for your collectors to safely pick up your bins and stay on schedule for you and your neighbors.
It will allow staff and equipment at the recycling, composting and landfill facilities to handle our waste responsibly and safely.
Keep these items out of all your carts
- No batteries
- No chemicals and propane tanks
Keep these items out of your blue and green carts
- No garbage – black garbage bags
- No household items (e.g. furniture, hoses, toys etc.)
- No scrap metal – pots and pans, pipes, car parts
What can and can’t go in the carts
Black cart
Blue cart
Green cart
Cart spot check program
The City conducts over 200,000 bin checks each year to make sure the right items are going into the right bins. The program allows us to see how Calgarians are using their bins in real-time and to provide direct feedback at the household level. Through these spot checks we help Calgarians learn how to sort their waste properly and lower overall contamination rates for the carts.
How spot checks work
If an incorrect item is spotted, it may be removed and a tag is left on the cart to notify the household of the problem.
If you receive a notice tag on your cart, make sure to follow the instructions on how to fix it for next time.
Door knockers may also be in your neighborhood to answer any waste and recycling questions you may have and hand out brochures.