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201River Thames : out and about guides
202Report on the By Brook low flow investigations : October 2001 : volume 2 : (figures, maps and appendices)
203Protecting Porthleven
204River water quality 1992 classification by determinand : environmental protection draft final report
205River Lim : catchment action plan
206River Looe catchment river water quality classification 1990
207An investigation into ammonia levels in Weston Mill Lake, Devonport
208River Dart catchment river water quality classification 1990
209River quality : July 1990 - June 1991
210River Gannel catchment river water quality classification 1991
211Contracts Department (National Rivers Authority)
212The Lowermoor environment report
213Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met
214River Yealm catchment river water quality classification 1991
215Regional water quality monitoring and surveillance programme for 1992 : quality assessment of river waters
216Regional water quality monitoring and surveillance programme for 1992 : biological impact assessment of discharges on receiving waters
217River Valency and Crackington Streams catchment river water quality classification 1990
218River Axe abstraction : implications for water quality
219Annual classification of river water quality 1991
220The NRA navigations
221Environmental planning issues in the North Wessex area
222River Seaton catchment river water quality classification 1991
223Investigation of the effects of sewage treatment works discharges on receiving waters in the Lowermoor Water Treatment Works supply area November 1989
224Investigation of the environmental impact of Coombe Farm on the Clapton Stream January 1992
225River Lynher catchment river water quality classification 1990