| 476 | The evaluation of Grant/YSU 3800 water quality monitor |
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| 477 | PVC : an evaluation using the Natural Step framework |
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| 478 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
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| 479 | Quality audit of biological samples for the 1991 river quality survey |
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| 480 | Pesticides in the aquatic environment 1997 full report |
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| 481 | Quantification of the relationship between effluent quality and biological quality : final report |
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| 482 | Charging for discharges scheme : guidance to the agricultural industry |
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| 483 | Priority and other specific polluting substances and the Water Framework Directive |
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| 484 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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| 485 | An Aerial Photograph of Ferry House and The Pearsall Building |
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| 486 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |
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| 487 | Research and development in the Environment Agency : a short guide |
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| 488 | Clear Options towards an operational model for the Lee Valley Reservoirs |
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| 489 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
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| 490 | Introductory guidance on the Agency's contribution to sustainable development (SD1) |
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| 491 | The National Centre for Toxic and Persistent Substances |
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| 492 | Algal blooms in the Lower Tees- Perspectives and prospects
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| 493 | Acidification of freshwaters: the threat and its mitigation |
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| 494 | Pearl Mussel Image: First out of the blocks |
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| 495 | FWR - User guide for assessing the impact of combined sewer overflows |
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| 496 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
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| 497 | The Use of Immuno Based Techniques for Chemical Analysis |
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| 498 | Water from the River Dee : a working partnership |
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| 499 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
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| 500 | River quality in England and Wales : a report of the 1990 survey |
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