451 | An audit of performance in the processing of macro-invertebrate samples in 1992 |
452 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
453 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
454 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
455 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
456 | The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria |
457 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
458 | Catchment management plans : protecting and enhancing the water environment in an integrated manner |
459 | Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd |
460 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
461 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2011 |
462 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2013 |
463 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2012 |
464 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
465 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2011 |
466 | 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 |
467 | 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 |
468 | Report on two electrofishing surveys carried out between July 10-25 1978 and July 9-12 1979 on the proposed Kielder Water
|
469 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk F in 2013 |
470 | An investigation into the presence of high levels of cadmium in sea-water samples from Mounts Bay, Cornwall |
471 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
472 | Local Environment Agency plan for the West Midlands Tame, 2nd annual review, July 2001 : local environment focus |
473 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2014 |
474 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2012 |
475 | NRA guidance on the acceptable leachable values for contaminated material to be deposited in Upper Tame catchment |