| 376 | River Ray, Wiltshire : fisheries survey 1989 |
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| 377 | The disinfection of the Manchester Square Outfall, Blackpool, 1993 |
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| 378 | Wetland Sites of Special Scientific Interest regional monitoring strategy |
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| 379 | River Culm fisheries survey 1994 |
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| 380 | Time of travel of pollutants study : River Taw : Q22/Q25 |
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| 381 | Less sensitive areas and candidate high natural dispersion areas in the North West region |
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| 382 | Water quality report 1991 |
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| 383 | Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989 |
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| 384 | Devon area internal report - portilly outfall - Camel Estuary bathymetric survey |
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| 385 | National Rivers Authority, South West Region : regional review 1989/90 |
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| 386 | River Sid catchment : river water quality classification 1991 |
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| 387 | The River Severn (NRA Severn-Trent 65) |
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| 388 | Sandon dock wastewater treatment works : outfall survey October 1992 |
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| 389 | Loweswater survey, July 1993 |
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| 390 | River Plym catchment river water quality classification 1990 |
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| 391 | Summary of Fisheries Statistics 1990 |
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| 392 | Benchmarking rainfall runoff models within the Anglian Region : final report |
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| 393 | Regional water quality monitoring and surveillance programme for 1992 : consent compliance assessment of effluent discharges |
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| 394 | River Avon fisheries survey 1994 |
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| 395 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 396 | River Tamar catchment river water quality classification 1991 |
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| 397 | River Ancholme navigation |
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| 398 | Southern region business plan 2001 / 2002 |
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| 399 | Devon area report - River Creedy fisheries survey 1994 |
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| 400 | Marine section monitoring programme, estuaries and coastal waters : sampling stations and requirements, summary for 1994 |
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