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Organic Waste

Organic Waste Collection (green waste + food scraps)

The organic waste collection is carried out once a week on Wednesdays.

Time of day and location

Organic waste may be disposed of by the curb between 7 p.m. the day before and 7 a.m. on the day of the collection.


Brown bins used for this collection are provided by the City when the collection is first implemented. These bins remain City property and may not be used for other purposes. They belong to the address delivered and must remain on site at moving time. Excess food waste may be disposed of next to the brown bin, in a paper bag, a cardboard box or garbage can.


NO plastic bags, including those that are certified biodegradable or compostable—are accepted for this collection.

Why not?

The composting site where the Borough of Lachine sends the organic waste that it collects does not have the certification required to open plastic bags. TheMinistère du Développement durable, de l’Environnement et de la Lutte aux changements climatiques issues this certificate only to centres that prove they have met their requirements relating to controlling the gases that may be produced inside these bags. The Ministère takes the view that all plastic bags, whether biodegradable, oxo-biodegradable or compostable, cause anaerobic decomposition conditions that produce biogases in turn.

Moreover, plastic bags, including those that are certified biodegradable and compostable, take more time to decompose than the composting process for organic materials in itself. As a result, even after processing, pieces of plastic are found in the compost.

AcceptableNot acceptable
Raw, cooked or rotted food
  • Fruits and vegetables
  • Meat and poultry with or without bones
  • Fish and bones, seafood and shells
  • Grain products, such as pasta, bread, cake, rice
  • Eggs and shells
  • Solid milk products (cheese, butter and yogurt)
  • Tea, herb tea or coffee grounds, with their bags or paper filters
  • Nuts and shells
  • Cookies, sweets and desserts
  • Pet food
  • Spices and herbs
Soiled paper and cardboard
  • Facial tissues, paper towels and table napkins
  • Paper table coverings, cardboard dishes
  • Food boxes (pizza, chicken, etc.)
  • Cardboard food baskets (without the handle)
Green waste
  • Leaves, grass cuttings, wood chips
  • Garden waste and vegetable garden waste, plants
  • Conifer branches under 1 metre long and 5 cm in diameter
  • Leafy tree waste
  • Liquids (soup, milk, juice, coffee, etc.)
  • Diapers and hygienic products
  • Fabric, wood, cork, wax, hot ashes, cigarette butts
  • Chewing gum
  • Animal litter and excrement
Recyclable materials
  • Paper, cardboard, glass, plastic, metal
Other materials
  • Construction and renovation debris
  • Paint and hazardous household waste
  • Polystyrene and plastic wrapping
  • Earth, rocks and sand
  • Crystal, porcelain, ceramics
  • Non-vegetable oils and fat
  • Batteries and biomedical waste

Tips and tricks

  • Place newspaper at the bottom of the brown bin; it will absorb the excess moisture.
  • Wrap delicate food (meat and fish) in newspaper, in small amounts.
  • Sprinkle some baking soda or put a charcoal briquette inside each of the organic waste bins to limit the odours.
  • Freeze food waste or keep it in the refrigerator to chill until you place it in your brown bill on collection day.
  • Although it is not required, bundles of newspaper or plastic bags reduce the frequency of the need to clean these bins. In any case, however, avoid disposing of liquids in both the brown bin and the mini-bin on your counter.
  • If odours persist, rinse the brown bin with a solution of vinegar and water. At all times, avoid leaving the bin in the sun.
  • Get into the habit of putting your brown bin outside for pick-up, in front of your home, for the weekly collection, even if it is not full.
  • To keep fruit flies away from the mini-bin (on your counter), cut a cork stopper lengthwise and place it on the lid of that mini-bin.
  • To keep squirrels away from the brown bin, coat the lid with cough suppressant ointment (available over the counter, at pharmacies and supermarkets).

In winter, to prevent your brown bin from freezing and becoming difficult—or even impossible—to be emptied by our crews:

  • Place layers of newspaper at the bottom of the bin and bag. The paper will serve as insulation and make it easier to absorb the excess moisture from the food.
  • If you don't use any bags, coat the inside of the bin with a bit of vegetable oil so that the waste doesn't stick to the walls of the bin, in case of freezing temperatures.
  • Please take care not to interfere with snow clearance operations when placing your bin by the curb for collection.

See also:
VdM – Food waste