626 | Guidance on the use of Bioassays in Ecological Risk Assessment |
627 | The National Rivers Authority employee attitude survey : summary |
628 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
629 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
630 | Pesticides in the aquatic environment 1997 : executive summary |
631 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
632 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
633 | Fine sediment deposition in the River Keer : geomorphological assessment |
634 | Draft protocol for the derivation of Toxicity Based Consents |
635 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
636 | Second Coniston OS map related to the Seismic Survey 1983 |
637 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
638 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
639 | Coniston OS map related to the Seismic Survey 1983 |
640 | The flood of February 1990 : technical services flood monitoring report |
641 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
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 | Biological water quality monitoring in the Midlands region |
648 | A natural assets register for the Sankey catchment. Volume 2 |
649 | Clinical waste management in the community : a guide to managing waste |
650 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |