Source: https://tendernation.io/opportunities/01a13bc3-5d80-707d-ae1c-a505fd46dd7c/developing-an-approach-to-groundwater-detailed-quantitative-risk-assessment-for closed GB open procedure Suitable for SMEs # Developing an Approach to Groundwater Detailed Quantitative Risk Assessment for PFAS [Environment Agency](https://tendernation.io/buyers/environment-agency) Estimated value £50,000 Published 29 Sept 2025 Deadline Closed 3 Oct 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Buyer says suitable for VCSEs The buyer ticked “suitable for voluntary, community and social enterprises” on the notice. - Below-threshold contract Buyers cannot shortlist bidders on suitability before tenders are in, so everyone gets to submit a bid (except some larger works contracts). [Procurement Act 2023, section 85](https://www.legislation.gov.uk/ukpga/2023/54/section/85) - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender This project will commission a Rapid Evidence Assessment (REA) of published literature to identify evidence-backed robust physio-chemical data sources for 20 per- and poly-fluoroalkyl substances (PFAS) that could be used as inputs into a groundwater detailed quantitative risk assessment (DQRA) modelling software (e.g. ConSim and RTM). PFAS are a broad group of synthetic fluorinated chemicals which are persistent in the environment. Some are bio-accumulative and toxic, and/or highly mobile. PFAS are used in a wide variety of consumer products and industrial applications because of their unique chemical and physical properties, including oil, water and stain repellence, temperature and chemical resistance, and surfactant properties. Due to their widespread historical and current use, PFAS are prevalent within the water environment because of the direct and indirect pathways into groundwater and surface water from various applications and activities. The need for a consistent approach to assessing the risk of PFAS compounds to groundwater receptors is growing substantially due to increasing year on year attention to PFAS as an emerging contaminant, from the public, media, regulators, and industry. It is becoming more vital that we, as regulators, and industry, are able to understand the risks associated with PFAS, and can provide robust and consistent regulation in this emerging field. Alongside the REA, there is a requirement to produce a summary table of the required physio-chemical parameters, the data sources, and the justification for the inclusion of the data for the 20 PFAS. This REA and data summary table will be used to develop guidance on how to undertake a DQRA for PFAS contaminated groundwater. Read full description ## CPV classification Research consultancy services Source Find a Tender (UK) · Notice ocds-h6vhtk-059ae7-2025-09-29T14:56:42+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-059ae7-2025-09-29T14:56:42+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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