Remediation and Verification Strategy - Tilbrook, Cambridgeshire

Clear Environmental combined supplementary investigation with a remediation and verification strategy for a residential development in Tilbrook, defining the measures needed without extending remediation across the whole site.
Remediation and Verification Strategy - Tilbrook, Cambridgeshire
Remediation and Verification Strategy - Tilbrook, Cambridgeshire

Overview

A former kennels and cattery site in Tilbrook, Cambridgeshire, was being redeveloped for housing. A previous investigation had identified localised contamination, and the developer needed to establish what remedial work was genuinely necessary for the proposed layout.

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Clear Environmental reviewed the existing evidence, undertook supplementary investigation and prepared a combined remediation and verification strategy. The work considered the different requirements beneath buildings and hardstanding and within future gardens and soft landscaping.

Scope

  • Reviewed the previous desk study and ground investigation against the proposed residential layout.
  • Undertook supplementary trial pitting and soil testing to assess the areas relevant to future use.
  • Updated the contamination risk assessment and considered whether a site-wide or targeted remedial approach was justified.
  • Specified proportionate measures for gardens and soft landscaping, including suitable imported soils.
  • Defined the inspection, testing and documentation needed for subsequent verification of the remedial works.
Remediation and Verification Strategy - Tilbrook, Cambridgeshire
Remediation and Verification Strategy - Tilbrook, Cambridgeshire

Outcome

Clear combined the supplementary investigation and remediation strategy into a defined scope for making the site suitable for residential use. Considering the evidence alongside the proposed layout showed that site-wide remediation was not justified: measures could focus on gardens and soft landscaping, with building and hardstanding cover addressing the relevant exposure risk elsewhere.

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The developer had a practical basis for planning the remaining works and understanding the verification evidence needed for regulatory review. The strategy established what needed to be delivered and demonstrated, rather than allowing a localised finding to dictate remediation across the whole site.