851 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
852 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
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853 | The River Colne Estuary subtidal biological survey 1992 |
854 | A report on the investigation into water contamination at Hauxton, Cambrigeshire |
855 | Fisheries of the middle and lower Wylye and factors affecting their performance |
856 | Scoping guidance for the environmental assessment of projects |
857 | The drought of 1988-1992 in Anglia : a review |
858 | Definition of the Extent and Vertical Range of Saltmarsh |
859 | Method for assessing the heritage value of net fisheries |
860 | Summary of monitoring activities on the blackwater estuary |
861 | An Investigation of Ecological Change in the Rivers Kennet and Lambourn |
862 | Factors affecting the recruitment of riverine coarse fish: phase 3 |
863 | Medway Estuary fisheries survey 2000 : (incorporating the report for 1997 to 2000) |
864 | Land Use and Fisheries Report of the Pilot Study |
865 | Guide to the use of control charts in water analysis |
866 | A Review of the Brogboroughand Landfill 2000 Test Cells Monitoring Data |
867 | A survey of trace metals in biota of the Mersey estuary 1993 |
868 | Policy and practice for the protection of groundwater : regional appendix Anglian region |
869 | Post drought soil water recharge : a study of the processes of recharge |
870 | Continuous water quality monitoring results for the Carnon river |
871 | An assessment of the NRA algal growth inhibition test : 1993/4 |
872 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8 |
873 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9 |
874 | Attenuation of nitrate in the sub-surface environment |
875 | The use of herbicides to control weeds in or near water |