We believe Cognition Land and Water to be one of the most dynamic and multifaceted specialist contractors in the Land Remediation and Ground Engineering industry.
What we do
We offer our clients a 'one-stop-shop', providing a wide range of services from civil engineering, to enabling, remediation, earthworks and groundworks. We have the necessary skills and experience to solve your ground engineering challenges and we offer innovative solutions to save time and money.
Cathedral Park, Chichester – A new lease of life for WW2 fuel depot site
28 April 2022
Cognition has undertaken the task of decommissioning a former RAF refuelling depot in Chichester. The 5-hectare site will be redeveloped for commercial use The fuel depot contained four 700,000 litre partially buried fuel tanks. Due to the unusual construction of the tanks Cognition assisted the team from Development Archaeology record the historic site prior to decommissioning.
Tanks were decommissioned and degassed with residual liquids treated through a 4-stage mobile water treatment plant. Tank supports were removed and steel walls in a bulkhead design were disassembled. Foundations were removed and excavations validated to demonstrate the soil was free from contamination. Recovered soil was backfilled within the tank voids and stabilised, the providing a substantial cost saving to the Client as this negated the need for soil disposal and subsequent import of engineered fill material.