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6551River Test catchment management plan : phase 1. Draft.
6552River quality survey GQA assessment 1998 : Dales area freshwater rivers and canals river reach classification summary 1990-9
6553Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998
6554Upper Ouse catchment management plan : consultation report summary : March 1996
6555Notonecta viridis,
6556Rivers Swale, Ure and Ouse catchment management plan : final plan
6557Trent licensing policy review : executive summary report
6558Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
6559The River Colne Estuary subtidal biological survey 1992
6560The use of fertilizer-free buffer strips to protect dyke flora from nitrate pollution on Walland Marsh S.S.S.I
6561Effects of Electric Fishing on Fish - Technical Summary
6562Crayfish conservation (378/8/N) : interim report for 1993
6563Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
6564Mesotrophic rivers in Anglian region : phase 1 June 1994
6565Chemical Techniques Manual
6566Crangonyx pseudogracilis and Gammarus pulex
6567A report on the investigation into water contamination at Hauxton, Cambrigeshire
6568Fate and transport of phage and viruses in UK Permo-Triassic sandstone aquifers
6569Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report
6570Waterways Breeding Bird Survey: progress and population trends: 1998
6571A partnership in environmental protection
6572Control of substances hazardous to health : (COSHH) regs 1988. Interpretation and implementation
6573Staying safe on Anglian waterway : safety guide
6574Environment Agency special waste statistics 1994-7
6575A review of hazardous substances