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