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Message last updated - Wednesday 26th November 2025
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Message last updated - Wednesday 26th November 2025
Message last updated - Wednesday 26th November 2025
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The following information is aimed at current trade effluent dischargers and those that may wish to discharge trade effluent in the future.
It's illegal to discharge trade effluent without written consent from the sewerage undertaker.
The Water Industry Act 1991 defines any used water discharged as a result of an activity carried out at a trade premises as “trade effluent”. This doesn't include domestic sewage such as used water from toilets or hand washing which might take place on the site. Trade effluent can vary in size from small launderettes to large chemical manufacturing facilities.
If you wish to discharge trade effluent into a public sewer you're required by law to obtain a trade effluent consent from the sewerage undertaker responsible for the upkeep of the public sewer. Anglian Water is the sewerage undertaker in the East of England as shown in the map below.

Information for retailers can be found on our wholesale customer portal.
Take a look at our Trade Effluent Explained booklet for a comprehensive guide to trade effluent in the Anglian Water region.
On-site spillages - Never flush to dilute a spill
If you have any kind of problem at your premises where any of the following go into the sewer network:
• Non-compliant trade effluent
• Chemicals
• Other polluting waste
Please call us immediately on 03457 145 145. Providing details of the spill, substances, location and quantities discharged. Our lines are open 24/7.
There are more than 3800 consented discharges of trade effluent in the Anglian Water region including…