Our impact
Waste management and freshwater use
Our waste should always be disposed of in compliance with prevailing regulations, and recycled whenever possible.

Biological waste

Organic waste is a valuable resource that have many uses after its collected.

Fish trimmings from harvesting and dead fish from farms are disposed separately in all regions, and turned into fish silage. Depending on quality, it is re-used as animal feed, biofuel or fertilizers.

Organic waste from all our fresh water facilities are collected utilized as biofuel, fertilizer or organic composting.

Organic waste from fish in the sea farms are a part of the natural ecosystem. However, we must ensure that the waste does not impact the seabed negatively or cause eutrophication.

Our own harvesting and processing plants are located in areas of


Farming equipment

In previous decades, our industry is guilty of not cleaning up farming equipment sufficiently. That is not how we operate today. Old farming equipment is safely removed if operations cease.

Freshwater use

Building a water secure future for all is a key component of a more sustainable food system. Grieg Seafood is committed to use our freshwater resources sustainably today and in the future.

We adhere to the following principles for freshwater use:

  • According to the World Resource Institute and its Aqueduct water risk atlas, our farming operations are in areas where there is low risk associated with freshwater use. Therefore, following local regulations is our main approach to ensure sustainable freshwater use.
  • Recirculating Aquaculture Systems (RAS) is the preferred technical solution for our hatcheries, smolt and post-smolt facilities.
  • We do not contribute to freshwater pollution and we only discharge wastewater from our freshwater facilities and processing plants to sea in coastal areas where there is low or low/medium risk associated water quality (Coastal Eutrophication potential), ref. WRI, Aqueduct water risk atlas. All our processing plants have installed treatment systems removing solids and nutrients in line with the discharge permits from local authorities, ensuring that the environmental condition and good caring capacity of the local recipient is maintained.
  • We monitor our freshwater use in all land-based facilities.
  • Freshwater use when producing feed raw materials or ingredients should be sustainable.
  • Going forward, we will make a more thorough water risk assessment for the company.

Freshwater withdrawal

The freshwater sources are mostly local surface water from lakes or rivers, or groundwater from wells in nearby aquifers. As our sites are located close to the sea, most of the freshwater is sourced towards the end of the stream, with few or no activities sourcing water between our operations and the ocean.