Disposal of Roundup product containers by Amenity users


This note details how Monsanto products are classified under the Waste Framework Directive, 2008/98/EC and offers useful advice for amenity users on the waste production involved in the use of Monsanto glyphosate products and their obligations under the Environmental Protection, (Duty of Care) Regulations, (as amended), 1991.



  • Choose high-load modern Roundup formulations which reduce the number of cans used over standard 360 g/l formulations.
  • Choose products not classified as hazardous where possible.
  • Always use sprays from the store in rotation to avoid the need to dispose of out of date agrochemicals.
  • Always rigorously triple rinse** containers to avoid classification as Hazardous waste*


All European Waste Catalogue, (EWC), categories with * are classed as Hazardous waste and come under the Hazardous Waste Regulations. Hazardous waste is an average of four times more expensive to dispose of so careful planning is required to keep this to a minimum.

The Landfill Directive prohibits untreated business waste being sent to Landfill. Separation and recycling of plastic and cardboard waste means the residue can then be sent to landfill. Amenity companies can use a national collection and recycling scheme or take their waste to a Local Authority disposal site themselves. Either way under the regulations they have a Duty of Care to secure their waste, only pass it on to someone who is authorised to take it, fill in a Waste Transfer note and keep it for two years.

To fill in the Waste Transfer Note users must self-classify the waste according to the European Waste Catalogue, (EWC).

  • Uncontaminated cardboard outer boxes containing pesticide packs is classed as paper and cardboard packaging, EWC 15 01 01.
  • All Monsanto liquid herbicides are supplied in plastic drums which should be triple-rinsed on emptying **. They are then classed as EWC 15 01 02, (plastic packaging).
  • Un-rinsed containers and pesticide contaminated cardboard are classified as if they were uncontaminated provided the contents were non-hazardous, but both are classed as EWC15 01 10* if the pesticide concerned was classed as hazardous.

Roundup ProActive, Roundup ProVantage and Monsanto Amenity Glyphosate XL are non-hazardous.


Since the introduction of CLP, the classification of some products has changed. For products with (H319) the waste is hazardous only if the product comprises 20% or more of the waste material. Monsanto Amenity Glyphosate is in this category.

For those classed as or with H statements H400, H410, H412 or H413 waste is hazardous where product comprises 25% or more of the waste. There are no Monsanto glyphosate products in this category.

  • Cans which still contain a substantial amount of herbicide rather than just a residue are classed as a pesticide under the municipal waste section and are EWC 20 01 19* even if the contents are not themselves classed as hazardous.
    ** Triple rinsing according to Best Practice and The Code of Practice for Using Plant Protection products, 2006 is the only way to be sure containers are empty. Beware: many Pressure Rinsing Devices factory-fitted to larger sprayers may not operate at a high enough pressure to remove all residue

Triple rinsing procedure

1. Fill the emptied container 10 – 20% full of water
2. Replace the cap securely
3. Depending on container size shake, rotate or roll it vigorously to rinse all inside surfaces
4. Remove the cap, add the washings to the spray tank
5. Repeat steps 1 to 4 twice more, ensuring complete drainage on the last emptying.
6. Put the cap back on the container and store safely for disposal



For more details contact the Monsanto Technical Helpline on (01954) 717575, e-mail technical.helpline.uk@monsanto.com , website at www.monsanto-ag.co.uk  www.voluntaryinitiative.org.uk

Roundup products contain glyphosate.
Roundup is a registered trademark of Monsanto Technology LLC.
©Monsanto UK Ltd 2017 (MS)