| 6901 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 6902 | Rapid Assessment of Physical Habitat Sensitivity to Abstraction (RAPHSA) |
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| 6903 | Hydrogen Peroxide Dosing Trials, Lea Marston, 18 and 19 March 1996 |
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| 6904 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
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| 6905 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
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| 6906 | Coastal baseline survey 1990-93. Part 1 : nutrients |
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| 6907 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
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| 6908 | Environmental Quality Standards for Dissolved Oxygen |
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| 6909 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
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| 6910 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
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| 6911 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
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| 6912 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
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| 6913 | The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T) |
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| 6914 | Determining The Causes Of 'Apparent Eutrophication' Effects |
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| 6915 | 1992 survey of bathing water quality : final draft report |
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| 6916 | Ecotoxocological impact of ferric sulphate on chironomid cultures and profundal reservoir communities |
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| 6917 | Loe Pool urban waste water treatment directive sensitive area (eutrophic) designation : final draft report |
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| 6918 | Phosphorus in the Thames catchment |
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| 6919 | River nar eutrophication study aquatic macrophyte survey |
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| 6920 | The Management of blue-green algal blooms in South-East Australia : a report on the visit to Australia by MJ Pearson and AJD Ferguson in January/February 1993 |
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| 6921 | Pilot environmental audit : NRA Leigh, Tonbridge, district office : southern region |
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| 6922 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
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| 6923 | Flood directory East Sussex Local Authority area |
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| 6924 | River Medway : a user's guide |
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| 6925 | Masonry bunds for oil storage tanks |
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