| 251 | Proposals to extend MCERTS to continuous ambient air-quality monitors |
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| 252 | The River Test |
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| 253 | Sapiston River support scheme : test pumping of observation boreholes (92/6/362) |
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| 254 | National Rivers Authority/Po River Basin Authority collaboration programme : (collection of documents) |
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| 255 | Sources of farm pollution and impact on river quality : interim report (001/6/W) |
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| 256 | Factors affecting natural smolt production |
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| 257 | The disposal of sheep dip waste (R and D Report 11) : effects on water quality |
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| 258 | Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity |
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| 259 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
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| 260 | Living waterways - a showcase of waterside rejuvenation projects |
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| 261 | River Fowey catchment river water quality classification 1990 |
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| 262 | National marine baseline survey 1995 : littoral cell 6 : Portland Bill to Lands End |
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| 263 | National marine baseline survey 1995 : littoral cell 5 : Selsey Bill to Portland Bill |
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| 264 | Seminar on water pollution control |
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| 265 | River Lim catchment river water quality classification 1991 |
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| 266 | River Plym catchment river water quality classification 1991 |
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| 267 | List II metals : evaluation of standards using field data |
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| 268 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
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| 269 | River Gannel catchment river water quality classification 1990 |
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| 270 | Irish Sea nutrients survey |
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| 271 | River Axe Fish Study - Supplementary Report |
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| 272 | River Erme catchment river water quality classification 1991 |
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| 273 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 274 | South West regional pollution prevention and control |
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| 275 | Rivers Avon and Gara catchments river water quality classification 1991 |
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