| 251 | Supplementary survey of contaminated land : report |
|---|
| 252 | Thames Region : EC dangerous substances directive : STW data 1991-1992 |
|---|
| 253 | The role of the National Rivers Authority in droughts |
|---|
| 254 | River quality : 1993 |
|---|
| 255 | River Corridor Surveys
|
|---|
| 256 | The rehabilitation of the River Taff |
|---|
| 257 | The government's policy for a public regulatory body in a privatised water industry |
|---|
| 258 | Wetlands for Wales : a strategy for the third millenium |
|---|
| 259 | Salmon and sea trout catch statistics 1989 |
|---|
| 260 | Bathing waters report 1993 |
|---|
| 261 | National Groundwater and Contaminated Land Centre annual report 1999/2000 |
|---|
| 262 | Post mortem study of otters in England and Wales 1992-2003 |
|---|
| 263 | Remedial Treatment Action Data Sheets. Version 1.0 |
|---|
| 264 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
|---|
| 265 | National Groundwater and Contaminated Land Centre annual report 1998/9 |
|---|
| 266 | Use of rod catch-effort data to monitor migratory salmonids in Wales : a report submitted in part fulfillment of the requirements of the course |
|---|
| 267 | Riverside litter : results of the 1990 campaign and a strategy for the future |
|---|
| 268 | Improving efficiency and effectiveness in flood defence operational management : review of R and D (1990-1993) |
|---|
| 269 | Clwyd catchment management plan : consultation report summary |
|---|
| 270 | Method for assessment of low flow conditions caused by abstraction. Volume 1 (237/2/T) : report |
|---|
| 271 | Welsh Regional plan summary 1990/91 (Bilingual): Rhanbarth Cymru crynodob cynllun |
|---|
| 272 | National baseline survey marine manual |
|---|
| 273 | Microbial Source-Tracking project |
|---|
| 274 | Salmon and sea trout catch statistics 1988 |
|---|
| 275 | Salmon and sea trout catch statistics 1990 |
|---|
