| 76 | Charging for discharges scheme : guidance to the agricultural industry |
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| 77 | Policy and practice for the protection of groundwater : Thames Region appendix |
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| 78 | Wash zone report. Part 1 : the Wash NRA monitoring review |
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| 79 | The Identification of Oestrogenic Effects in Wild Fish - Phase II |
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| 80 | Guidance on the use of Bioassays in Ecological Risk Assessment |
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| 81 | Macroinvertebrates in the Kennet catchment : Part 1 - water quality monitoring |
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| 82 | River quality in England and Wales : a report of the 1990 survey |
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| 83 | 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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| 84 | 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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| 85 | 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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| 86 | 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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| 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 | A Proposed Scheme To Ensure The Quality Of Data Generated By Laboratories Undertaking Regulatory Ecotoxicological Testing |
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| 89 | The Use of Catch Statistics to Monitor Fishery Change - Coarse Fish Study - Synopsis |
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| 90 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
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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 | An investigation into the water quality of a treated effluent from Hambleton Dairy, Todber, Dorset |
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| 94 | Assessment of radioactive discharge screening levels for biota protected under the habitats regulations : April 2002 |
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| 95 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 96 | Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water |
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| 97 | A review of the industrial uses of continuous monitoring systems : metals industry processes |
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| 98 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 99 | Evaluating the impact of groundwater abstraction on key conservation sites. Stage 1 reports for AMP3 |
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| 100 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |
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