| 6226 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
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| 6227 | Poole Harbour and Purbeck catchment management plan : first annual review |
|---|
| 6228 | Redgrave and Lopham Fens alleviation scheme : project appraisal report : version 1.0 |
|---|
| 6229 | Report on alternative methods of river bank protection : Norfolk District |
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| 6230 | River Test catchment management plan : phase 1 |
|---|
| 6231 | River Test catchment management plan : phase 1. Draft. |
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| 6232 | River quality survey GQA assessment 1998 : Dales area freshwater rivers and canals river reach classification summary 1990-9 |
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| 6233 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
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| 6234 | Upper Ouse catchment management plan : consultation report summary : March 1996 |
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| 6235 | Notonecta viridis, |
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| 6236 | Rivers Swale, Ure and Ouse catchment management plan : final plan |
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| 6237 | Trent licensing policy review : executive summary report |
|---|
| 6238 | Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme |
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| 6239 | The River Colne Estuary subtidal biological survey 1992 |
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| 6240 | The use of fertilizer-free buffer strips to protect dyke flora from nitrate pollution on Walland Marsh S.S.S.I |
|---|
| 6241 | Effects of Electric Fishing on Fish - Technical Summary |
|---|
| 6242 | Crayfish conservation (378/8/N) : interim report for 1993 |
|---|
| 6243 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
|---|
| 6244 | Mesotrophic rivers in Anglian region : phase 1 June 1994 |
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| 6245 | Chemical Techniques Manual |
|---|
| 6246 | Crangonyx pseudogracilis and Gammarus pulex |
|---|
| 6247 | A report on the investigation into water contamination at Hauxton, Cambrigeshire |
|---|
| 6248 | Fate and transport of phage and viruses in UK Permo-Triassic sandstone aquifers |
|---|
| 6249 | Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report |
|---|
| 6250 | Waterways Breeding Bird Survey: progress and population trends: 1998 |
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