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451Biological River Quality Map 1994 and Land Drainage Byelaws 1981
452Report on the 1995 stock assessment of the Douglas catchment
453Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
454The Eastern Rother
455Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
456River Otter catchment river water quality classification 1990
457Report for Anglian Water, plc on the use of the Orwell Estuary mathematical model to derive long term consent limits for Cliff Quay STW
458Swords water quality study - phase 1 : modelling the water quality of the River Thames
459Thames Water utilities category A and B : sewage works survey 1991
460River quality survey NRA Northumbria and Yorkshire region GQA assessment 1994. Part 1 Reach classification. Freshwater rivers and canals
461Environmental best practice for continuous cover forestry
462Pow Outlet YSI Sonde
463Investigation to determine if the soakaway from the Stowford Farm caravan site is having an impact on the biological community of the Colam stream
464River Axe catchment river water quality classification 1991
465Toxicity Reduction Evaluation Case Summary for the Pulp and Paper Industry
466Discharge control by direct toxicity assessment (DTA)
467Newby Beck Mitigation Sub-Catchment Turbidity
468Viruses in the aquatic environment
469River Tamar catchment river water quality classification 1990
470Pow Ratten Row (Tel) rainfall QC Flags
471The distribution of nutrients and phytoplankton in the North-East Irish Sea
472Improved monitoring for surface water quality : the development of a manual of best practice
473Newby Beck Catchment Outlet Analogues (nutrients)
474YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2011
475YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2011