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Biosolids Assurance Scheme

At United Utilities, we put our customers first, and that is why we are a fully certified member of the Biosolids Assurance Scheme (BAS).

The Biosolids Assurance Scheme is owned and operated by Assured Biosolids Limited, which is a not-for-profit organisation set up by 11 UK Water and Sewage Companies, and is in place in order to promote the acceptance of recycling biosolids to agricultural land.

The scheme works to combine legislation and best practise and aims to achiever operational transparency and consistency, along with ensuring the nutritional value of product taken to land. BAS aims to operate in the most sustainable way possible, working strongly to protect the environment and provide information and safety assurance, which ultimately, provides reassurance to the food chain and customer.

The scheme standards for:

  • Testing – Throughout the Biosolids production process and soils from the land it’s destined for.
  • Treatment – Ensuring our processes are robust and the product is consistent in its uniformity.
  • Delivery and Storage – Providing a safe, responsible delivery system
  • Compliance – Making sure that from the start of the Biosolids process to its application in field, we have full traceability and compliance.

The standard set by BAS requires organisations involved to demonstrate that all materials entering the process are subject to risk assessment and that control measures are in place to reduce any risks to acceptable levels, thus ensuring a high quality, safe product.

  • Assured Biosolids Limited (ABL) govern the process
  • NSF provide Audits and Surveillance of product carried out in order to secure certification.
  • Biosolids are certified and able to be recycled to agricultural land.