| 551 | Low-cost modifications of the Crump weir to improve fish passage |
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| 552 | Policy and practice for the protection of floodplains |
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| 553 | 'Sea Vigil' water quality monitoring : the Wash 1992-1993 |
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| 554 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
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| 555 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
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| 556 | Guidance on the use of Bioassays in Ecological Risk Assessment |
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| 557 | The National Rivers Authority employee attitude survey : summary |
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| 558 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
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| 559 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
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| 560 | Pesticides in the aquatic environment 1997 : executive summary |
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| 561 | The Louth coastal catchment management plan : final report |
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| 562 | Snapshots of the environment : a new environmental approach |
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| 563 | Second Coniston OS map related to the Seismic Survey 1983 |
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| 564 | Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
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| 565 | Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983 |
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| 566 | Coniston OS map related to the Seismic Survey 1983 |
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| 567 | The flood of February 1990 : technical services flood monitoring report |
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| 568 | Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework |
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| 569 | Policy and practice for the protection of groundwater : Southern region appendix |
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| 570 | Uses of the water environment: factsheet number six |
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| 571 | River basin planning and the Water Framework Directive |
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| 572 | An update on the Hexham flood alleviation scheme, Autumn 2006 |
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| 573 | (Bilingual) Assessing the impact of dewatering on water resources |
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| 574 | Catches of Brown Trout in the River Don |
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| 575 | Environmental snapshot for the East of England [2000] |
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