526 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
527 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
528 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
529 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
530 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
531 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
532 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
533 | The River Eden Demonstration Test Catchment (DTC) Data |
534 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
535 | The regulation of salmon angling in Great Britain
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536 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
537 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
538 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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539 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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540 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
541 | The evaluation of Grant/YSU 3800 water quality monitor |
542 | PVC : an evaluation using the Natural Step framework |
543 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
544 | Landfill and the water environment : NRA position statement |
545 | The vision for our environment : making it happen |
546 | Environment Agency guidance on the conditioning of intermediate level waste |
547 | Quality audit of biological samples for the 1991 river quality survey |
548 | Pesticides in the aquatic environment 1997 full report |
549 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report : November 1994 |
550 | The precious resource : a brief guide to managing our water resources |