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126Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
127The feasibility of biomanipulation in reservoirs and deeper lakes : draft final report
128The development and verification of methodologies for defining groundwater nitrate vulnerable zones
129Assessing and controlling the ecotoxicity of complex effluents
130General guide to the prevention of pollution of controlled water
131Fact sheet for the RBCA tool kit for chemical releases
132Charging for discharges scheme : guidance to the engineering industry
133Protection of the Water Environment using Balancing Facilities
134Investigation into the cause of high phenols in Budleigh Brook (1998)
135The quality of rivers in England and Wales (1990 to 1995)
136A guide to sustainable urban drainage : protecting the quality of our environment
137Impact assessment of acidic and metalliferous pollution in the Fowley Stream
138Proposals for statutory water quality objectives : report of the National Rivers Authority
139An investigation into the sewage system and storm overflow at Beer (1997)
140The control of effluent discharges by a direct toxicity assessment (DTA) approach
141Water quality investigations in the Newlyn river catchment
142Sustainable urban drainage : an introduction : protecting the quality of our environment
143A report on the investigation into water contamination at Hauxton, Cambrigeshire
144Toxicity Reduction Evaluation Case Summary for the Pulp and Paper Industry
145Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
146The National Groundwater and Contaminated Land Centre (NGWCLC)
147Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
148NRA strategy for reducing the concentration of pesticides in controlled waters
149Air dispersion climate from the Castle Cement works at Ribblesdale
150Toxicity Reduction Evaluation Case Summary for the Chlor-Alkali Industry