| 76 | Report on monitoring of environmental quality in the Severn Estuary |
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| 77 | The National Centre for Toxic and Persistent Substances |
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| 78 | River quality in England and Wales : a report of the 1990 survey |
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| 79 | Wash zone report. Part 1 : the Wash NRA monitoring review |
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| 80 | The Identification of Oestrogenic Effects in Wild Fish - Phase II |
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| 81 | A review of the optimum accuracy of flow and rainfall forecasting |
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| 82 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
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| 83 | An investigation into the sewage system and storm overflow at Beer (1997) |
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| 84 | A report on the River Chew at Chewton Mendip, 6th August 1992 |
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| 85 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
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| 86 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
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| 87 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
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| 88 | Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992 |
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| 89 | A study of the use of Glycol-based de-icers at RAF Lyneham and their impact on local watercourses during the winter of 1999/2000 |
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| 90 | The Use of Catch Statistics to Monitor Fishery Change - Coarse Fish Study - Synopsis |
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| 91 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
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| 92 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 93 | Assessment of radioactive discharge screening levels for biota protected under the habitats regulations : April 2002 |
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| 94 | Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water |
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| 95 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
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| 96 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 97 | Evaluating the impact of groundwater abstraction on key conservation sites. Stage 1 reports for AMP3 |
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| 98 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |
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| 99 | Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales |
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| 100 | Investigation of tecnazene contamination in the Chyandour Brook west Cornwall during spring 1990 |
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