• Trade effluent

    If your business is discharging non-household sewage (trade effluent) to the public sewer, you will need to obtain consent.

    From large food and drink manufacturing sites to car washes and laundrettes, all these businesses need trade effluent consent and it is the responsibility of the business owner or occupier of the premises discharging the effluent to obtain consent.

    A consent is required because trade effluent discharges from business and industrial premises can have harmful effects including damage to sewers, sewage treatment processes and watercourses.

    Short term discharges of less than six months duration such as chemical cleaning of chilled and hot water heating systems need a temporary consent.

    Once a consent or letter of authority has been issued by the sewerage Wholesaler, you will be charged accordingly by your retailer for the volume and strength of your effluent discharge.

    IMPORTANT : discharging trade effluent to sewer without consent or exceeding consent limits is a criminal offence, which could result in prosecution under the Water Industry Act 1991.

    If you are unsure as to whether you require a consent, please visit our consent page or download our 'Don't I need a Trade Effluent Consent?' PDF.


    We offer wide range of specialist services that can assist you with consent applications, compliance and waste minimisation.

    Applications for permanent and temporary consent including:

    • Assisting with variations to existing consent
    • Application support and expert guidance
    • Help reduce charges using waste minimisation and trade effluent treatment solutions
    • Renegotiation of consent limits

    Monitoring and Compliance Support:

    • Independent trade effluent sampling surveys
    • Compliance health checks and action plans
    • Installation or hire of trade effluent sampling equipment
    • Installation of flow measurement equipment such as Waste Water Meters
    • Site drainage surveys and plans
    • Trade effluent training

    Waste Minimisation:

    • Benchmarking / KPIs
    • Waste minimisation surveys
    • Treatment options review

    If you would like support with any of the above, please contact us on 0345 600 2 600 or email assist@water2business.co.uk

  • Discharges that do not require consent include:

    • wastewater from toilet flushing, hand basins, showers and canteens
    • sewage from certain types of businesses such as schools, restaurants, takeaways, holiday parks and nursing homes.

    If you need to apply for consent or you're unsure whether you need it, please contact us.

    Contact us Trade effluent consent Trade effluent services
  • More trade effluent services

    As well as support with trade effluent consent and sampling, we also offer a range of other trade effluent services including flow measurement, automatic sampling and waste minimisation surveys.

    Trade effluent services
  • Need to apply for trade consent or have any questions?

    Contact us