576 | Low-cost modifications of the Crump weir to improve fish passage |
577 | Policy and practice for the protection of groundwater - Thames region appendix |
578 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
579 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
580 | The Yarrow catchment : recommendations for statutory water quality objectives |
581 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
582 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
583 | Guidance on the use of Bioassays in Ecological Risk Assessment |
584 | The National Rivers Authority employee attitude survey : summary |
585 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
586 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
587 | The Louth coastal catchment management plan : final report |
588 | Fine sediment deposition in the River Keer : geomorphological assessment |
589 | Draft protocol for the derivation of Toxicity Based Consents |
590 | The Loddon catchment, Thames : recommendations for statutory water quality objectives |
591 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
592 | The flood of February 1990 : technical services flood monitoring report |
593 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
594 | Uses of the water environment: factsheet number six |
595 | River basin planning and the Water Framework Directive |
596 | The Adur and Ouse catchment abstraction management strategy : consultation document |
597 | Flood alleviation proposals for Bakewell and Ashford in the Water |
598 | An update on the Hexham flood alleviation scheme, Autumn 2006 |
599 | (Bilingual) Assessing the impact of dewatering on water resources |
600 | Catches of Brown Trout in the River Don |