1. Anon. (1974) A Guide to the Use of Soils as Foundations and as Construction Materials for Hydraulic Structures, Earth Manual. (Department of the Interior, Bureau of Reclamation, Washington, DC.) 2nd edn. .
2. Anon. 1981. Saline groundwater investigation. Phase 1—Lower Mersey Basin. Final Report to the North West Water Authority, University of Birmingham.
3. Barber, C., Maris, P. J. & Knox, K. 1977. Groundwater sampling: the extraction of interstitial water from cores of rock and sediments by high-speed centrifuge. Technical Report, Water Research Centre, No. 54.
4. Barber, C., Maris, P. J. & Blakey, N. C. 1978. Borehole packers for sampling ground water from narrow stratal intervals in Triassic Sandstone and Chalk Aquifers. Laboratory Report, Water Research Centre, No. 802.
5. A formula for estimating fissure transmissivities from steady-state injection-test data