Extraction and characterisation of interstitial pore-waters from Ruprechtov

This report describes work carried out by the British Geological Survey as part of a contract (Ref GA/02F/107) with Gesellscahft für Anlagen und Reaktorsicherheit (GRS) to carry out the practical extraction and characterisation of interstitial clay pore-waters from the Ruprechtov site. The contract is a continuation of earlier work carried out by the BGS in 1999/2000 (Reeder et al. 2000) Seven samples were tested for pore-water extraction by mechanical squeezing. These were tested in two phases: the first three in December 2002, and the second four in the Spring of 2004. The report describes the methods used to carry out these tests and summarises all the data produced.