Untreated dirty water must not be allowed to flow into watercourses.

The system used to store, handle and dispose of dirty water must be designed to cope with the amount and type of dirty water that is being produced. Any storage and handling system should include an allowance for sudden increases in volume, above that normally encountered, to prevent over flow to natural watercourses.

When water is used for washing or processing, wherever possible this water should be recycled

Water used for washing crops should not be spread on the land intended for the production of the same crop or similar type of crop due to the risk of spreading soil borne diseases, without robust and Co-op Retail approved treatment.