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 |