576 | Investigating the effect of changing retention time in natural and artificial water bodies: Simulations using PROTECH-D |
577 | Progress in water supply planning : the Environment Agency's review of water company water resources plans : a submission to Government |
578 | Evaluating the impact of groundwater abstraction on key conservation sites, final report : Yare Broads and marshes (Strumpshaw Fen) |
579 | Development of data and information sources on Natura 2000 estuarine sites in the north west : Morecambe Bay : final report |
580 | Nature's way : a guide to surface water best management practices, the effective and economic answer to non-point source pollution |
581 | Water resources for the future : a strategy for Wales (Bilingual) : Adnoddau dwr ar gyfer y dyfodol (Bilingual) |
582 | Investigation into algal bloom conditions in three fresh water ponds located at the Miniature Pony Centre, Mortonhampstead (1996) |
583 | Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001) |
584 | Development of data and information sources on Natura 2000 estuarine sites in the North West : Duddon Estuary : final report |
585 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
586 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
587 | Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000 |
588 | River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire |
589 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature |
590 | The Warwickshire Avon catchment management plan : first annual review : October 1994 - October 1995 (NRA Severn -Trent 45)
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591 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
592 | The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558) |
593 | Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3 |
594 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
595 | Strategic Land Use Planning In Europe And Usa: Review Of Best Practice For The Environment Agency (Vol 1 Overview And Recommendations) |
596 | Water wise : are you pouring money down the drain? (Bilingual) : Doeth a dwr : ydych chi'n tywallt arian i lawr y draen? |
597 | Eutrophication in controlled waters in the Warwickshire Avon catchment (final report). Vol 1 : report and executive summary |
598 | East Devon public water supply strategy : the existence and potential use in yield analysis of historic flow records |
599 | Economic appraisal and assessment of benefits in the PR04 environment programme : findings of an environment agency seminar, January 2003 |
600 | NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992 |