576 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
577 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
578 | A review of the hydrogeological information for the Thompson and Merton areas, Norfolk : including predictions of the impact of nearby chalk water abstractions on water levels at Thompson Water, Carr and Common SSSI and candidate SAC |
579 | Notice to water only companies of programme of environmental obligations agreed by the Secretary of State for the Environment, Transport and the Regions and for Wales : periodic review of water company price limits 2000-2005 |
580 | Analysis of natural and polluted river communities in Great Britain- Progress report for the period April 1984- March 1988
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581 | Report on two electrofishing surveys carried out between July 10-25 1978 and July 9-12 1979 on the proposed Kielder Water
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582 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk F in 2013 |
583 | An investigation into possible causes of poor water quality at Blakewell Bridge (R30A001) on the Bradiford Water |
584 | Investigation into algal bloom conditions in three fresh water ponds located at the Miniature Pony Centre, Mortonhampstead (1996) |
585 | Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000 |
586 | Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000 |
587 | Water resources for the future : a strategy for Wales (Bilingual) : Adnoddau dwr ar gyfer y dyfodol (Bilingual) |
588 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
589 | NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992 |
590 | An investigation into the presence of high levels of cadmium in sea-water samples from Mounts Bay, Cornwall |
591 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
592 | Local Environment Agency plan for the West Midlands Tame, 2nd annual review, July 2001 : local environment focus |
593 | East Devon public water supply strategy : the existence and potential use in yield analysis of historic flow records |
594 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature |
595 | An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake |
596 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2014 |
597 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2012 |
598 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk F in 2012 |
599 | The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558) |
600 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands |