626 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
627 | Guidance on the use of Bioassays in Ecological Risk Assessment |
628 | The National Rivers Authority employee attitude survey : summary |
629 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
630 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
631 | Pesticides in the aquatic environment 1997 : executive summary |
632 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
633 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
634 | Fine sediment deposition in the River Keer : geomorphological assessment |
635 | Draft protocol for the derivation of Toxicity Based Consents |
636 | The Loddon catchment, Thames : recommendations for statutory water quality objectives |
637 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
638 | The flood of February 1990 : technical services flood monitoring report |
639 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
640 | Policy and practice for the protection of groundwater : Southern region appendix |
641 | Uses of the water environment: factsheet number six |
642 | Flood alleviation proposals for Bakewell and Ashford in the Water |
643 | An update on the Hexham flood alleviation scheme, Autumn 2006 |
644 | (Bilingual) Assessing the impact of dewatering on water resources |
645 | Catches of Brown Trout in the River Don |
646 | Environmental snapshot for the East of England [2000] |
647 | Biodiversity strategy and action plan for the Environment Agency (Thames Region) |
648 | Biological water quality monitoring in the Midlands region |
649 | A natural assets register for the Sankey catchment. Volume 2 |
650 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |