526 | NRA strategy for reducing the concentration of pesticides in controlled waters |
527 | Low-cost modifications of the Crump weir to improve fish passage |
528 | Policy and practice for the protection of floodplains |
529 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
530 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
531 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
532 | The National Rivers Authority employee attitude survey : summary |
533 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
534 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
535 | Pesticides in the aquatic environment 1997 : executive summary |
536 | The Louth coastal catchment management plan : final report |
537 | Snapshots of the environment : a new environmental approach |
538 | Draft protocol for the derivation of Toxicity Based Consents |
539 | Second Coniston OS map related to the Seismic Survey 1983 |
540 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
541 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
542 | Coniston OS map related to the Seismic Survey 1983 |
543 | The flood of February 1990 : technical services flood monitoring report |
544 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
545 | Policy and practice for the protection of groundwater : Southern region appendix |
546 | Uses of the water environment: factsheet number six |
547 | River basin planning and the Water Framework Directive |
548 | An update on the Hexham flood alleviation scheme, Autumn 2006 |
549 | (Bilingual) Assessing the impact of dewatering on water resources |
550 | Catches of Brown Trout in the River Don |