526 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
527 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
528 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
529 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
530 | Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis) |
531 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
532 | Catchment management plans : protecting and enhancing the water environment in an integrated manner |
533 | Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd |
534 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
535 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2011 |
536 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2013 |
537 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2012 |
538 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
539 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2011 |
540 | 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 |
541 | 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 |
542 | Analysis of natural and polluted river communities in Great Britain- Progress report for the period April 1984- March 1988
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543 | 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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544 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk F in 2013 |
545 | An investigation into the presence of high levels of cadmium in sea-water samples from Mounts Bay, Cornwall |
546 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
547 | Local Environment Agency plan for the West Midlands Tame, 2nd annual review, July 2001 : local environment focus |
548 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2014 |
549 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2012 |
550 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands |