| 26 | Policy and practice for the protection of groundwater : draft for consultation |
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| 27 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 28 | Further Validation of PHABSIM for the Habitat Requirements of Salmonid Fish |
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| 29 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 30 | The NRA in business : annual review and summary accounts 1993-94 |
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| 31 | Report on monitoring of environmental quality in the Severn Estuary |
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| 32 | A review of factors affecting the abundance and catch of spring salmon fom the River Wye and elsewhere, and proposals for stock maintenance and enhancement |
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| 33 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |
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| 34 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
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| 35 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
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| 36 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 37 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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| 38 | An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents |
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| 39 | Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses |
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| 40 | Freshwater migration of sea trout (Salmo trutta L.) in the river Tywi during 1988, 1989 and 1990 |
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| 41 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
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| 42 | A review of the industrial uses of continuous monitoring systems : incineration processes : a report produced for NCCA and ETSU by Entec |
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