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401A second stage evaluation of the Grant YSI3815 Water Logger
402The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall
403An investigation of sewage on the beach at Porthcothan
404Charging for discharges scheme : guidance to the engineering industry
405The Test catchment southern : recommendations for statutory water quality objectives
406The Worcestershire Stour catchment : recommendations for statutory water quality objectives
407An assessment of river water quality in the River Kenn
408A survey of ferruginous minewater impacts in the Welsh coalfields
409A survey of ferruginous minewater impacts in the Welsh coalfields
410Dioxins and the River Doe Lea : plain English report
411Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
412Locks and weirs on the river Thames : how do they work?
413The quality of rivers and estuaries in Northumbria region 1990
414A guide to sustainable urban drainage : protecting the quality of our environment
415Estuarial migration of Atlantic salmon in the river Dee (North Wales)
416Doe Lea restoration study : the work of WRc
417The NRA in business : annual review and summary accounts 1993-94
418Cyanobacteria (blue-green algae) in the south west region 1989
419Toxic blue-green algae : a report by the National Rivers Authority
420Investigation of salinity in the river Thurne catchment of North East Norfolk
421Water quality investigations in the Newlyn river catchment
422Investigations of discharges into the River Lemon at Newton Abbot
423Report on monitoring of environmental quality in the Severn Estuary
424Artificial recharge to groundwater in the Otter valley
425Water quality in Anglian Region : the first five years