576 | Policy and practice for the protection of groundwater - Thames region appendix |
577 | Policy and practice for the protection of floodplains |
578 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
579 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
580 | Guidance on the use of Bioassays in Ecological Risk Assessment |
581 | The National Rivers Authority employee attitude survey : summary |
582 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
583 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
584 | Pesticides in the aquatic environment 1997 : executive summary |
585 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
586 | The Louth coastal catchment management plan : final report |
587 | Fine sediment deposition in the River Keer : geomorphological assessment |
588 | Snapshots of the environment : a new environmental approach |
589 | Draft protocol for the derivation of Toxicity Based Consents |
590 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
591 | Second Coniston OS map related to the Seismic Survey 1983 |
592 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
593 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
594 | Coniston OS map related to the Seismic Survey 1983 |
595 | The flood of February 1990 : technical services flood monitoring report |
596 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
597 | River basin planning and the Water Framework Directive |
598 | The Adur and Ouse catchment abstraction management strategy : consultation document |
599 | First annual review of the River Exe catchment management plan |
600 | First annual review of the Taw/Torridge estuary catchment management plan (1996) |