| 4401 | Survey group - terrain data supply - maps, plans, surveys and data - August 1993 |
|---|
| 4402 | River Stour (2), Sudbury : report of a river corridor survey carried out for the National Rivers Authority, Anglian region |
|---|
| 4403 | Microbiological examination of water contact sports sites in the River Thames catchment 1989 |
|---|
| 4404 | River Dart catchment river water quality classification 1990 |
|---|
| 4405 | River quality : July 1990 - June 1991 |
|---|
| 4406 | Health status of otters in southern and south west England 1996-2003 |
|---|
| 4407 | Economic appraisal of low flow alleviation : guidelines on desk top analysis : draft |
|---|
| 4408 | Yare catchment management plan : consultation report summary |
|---|
| 4409 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
|---|
| 4410 | NRA superannuation report and accounts for the period ended 31 March 1991 |
|---|
| 4411 | Sewage treatment works remedial strategy : internal report |
|---|
| 4412 | Water for Welsh region: a consultation document (bilingual): Dwr i ranbarth Cymru : dogfen ymgynghori |
|---|
| 4413 | Water resources development strategy : strategy overview. Supplementary report no. 9 |
|---|
| 4414 | River Gannel catchment river water quality classification 1991 |
|---|
| 4415 | Further guidance on the environmental assessment of projects |
|---|
| 4416 | Assessing the impact of sewage effluent disposal on groundwater (phase 2): final report |
|---|
| 4417 | Valuing Water Use in Scotland and Northern Ireland for WFD Implementation Purposes |
|---|
| 4418 | Safeguarding the lower bristol avon - public consultation |
|---|
| 4419 | Contracts Department (National Rivers Authority) |
|---|
| 4420 | Determination of Metal Background Reference Concentrations: Feasibility Study |
|---|
| 4421 | The NRA severn-thames transfer project: an assessment of the effect of mixing of source waters on the chemical composition |
|---|
| 4422 | An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment |
|---|
| 4423 | Taw/Torridge Estuary catchment management plan : consultation report : August 1993 |
|---|
| 4424 | Waterways Breeding Bird Survey Pilot Study 1998: Adaptation of BBS Census Methods to Rivers and Canals |
|---|
| 4425 | The Lowermoor environment report |
|---|
