1. Allen, D.J. , Brewerton, L.J. et al. 1997. The physical properties of major aquifers in England and Wales. British Geological Survey Technical Report, WD/97/34. Environment Agency, R&D Publication, 8.
2. Detergent formula effect on transport of nutrients to ground water from septic systems;Allhajjar;Ground Water,1989
3. AMEC 2011. North East Anglian Chalk (NEAC) Groundwater Investigation Project Record. NEAC Overview Report. Report for the Environment Agency, Anglian Region, 30 November 2011.
4. Beard, M.J. & Giles, D.M. 1990. Effects of discharging sewage effluents to the chalk aquifer in Hampshire. Chalk. Paper 52. Thomas Telford, London.
5. Boorman, D.B. , Hollis, J.M. & Lilly, A. 1995. Report No. 126. Hydrology of Soil Types: a classification of the soils of the United Kingdom. Institute of Hydrology, Wallingford.