651 | NRA strategy for reducing the concentration of pesticides in controlled waters |
652 | The ecology and management of riverine trees : interim report |
653 | Low-cost modifications of the Crump weir to improve fish passage |
654 | Policy and practice for the protection of groundwater - Thames region appendix |
655 | Policy and practice for the protection of floodplains |
656 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
657 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
658 | The Yarrow catchment : recommendations for statutory water quality objectives |
659 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
660 | The National Rivers Authority employee attitude survey : summary |
661 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
662 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
663 | Pesticides in the aquatic environment 1997 : executive summary |
664 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
665 | Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A) |
666 | The Louth coastal catchment management plan : final report |
667 | Fine sediment deposition in the River Keer : geomorphological assessment |
668 | Draft protocol for the derivation of Toxicity Based Consents |
669 | The Loddon catchment, Thames : recommendations for statutory water quality objectives |
670 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
671 | Second Coniston OS map related to the Seismic Survey 1983 |
672 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
673 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
674 | Coniston OS map related to the Seismic Survey 1983 |
675 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |