526 | Bedford Ouse (lower reaches) catchment management plan : summary report : April 1994 |
527 | Broads research progress report 1991 |
528 | Corporate plan 1991/1992 : Southern region |
529 | Corporate plan 1991/1992 : Southern region |
530 | River Tavy EC Freshwater Fish Directive failure 1993 |
531 | North West Norfolk catchment management plan : action plan : November 1995 |
532 | Ouse Washes : barrier banks improvements |
533 | Planning for the rising tides - the Humber Estuary - consultation on managed realignment: information for the landowners and tenants - June 2002 |
534 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
535 | Poole Harbour and Purbeck catchment management plan : first annual review |
536 | Flood defence (NRA Severn-Trent 59)
|
537 | Disposal of Cut Vegetation: Best Practice Guidelines |
538 | Management of Vegetation on Raised Embankments |
539 | Saltmarsh Change in England and Wales: Its History and Causes |
540 | Development of design method for straight compound channels. Volume 2 : detailed development of design method : part 2 : appendices (252/1/T) |
541 | An Investigation of Ecological Change in the Rivers Kennet and Lambourn |
542 | Assessment of estuarine/marine water quality using benthic macroinvertebrates : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
543 | Biological survey report - Chess catchment, June-Oct 1992 |
544 | Redd count report 1993 |
545 | Modelling seepage and groundwater flows from natural and replenished beaches : operational investigation 582 (anglian region) |
546 | Aquatic Weed Control Operation - Best Practice Guidelines |
547 | Controlling the inputs of persistent chemical to marine waters from land-based sources |
548 | National Centre for Toxic and Persistent Substances : business case |
549 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
550 | Wheal Jane : a clear way forward |