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401A survey of trace metals in biota of the Mersey estuary 1993
402Policy and practice for the protection of groundwater : regional appendix Anglian region
403An assessment of the NRA algal growth inhibition test : 1993/4
404Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
405Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
406The use of herbicides to control weeds in or near water
407General awareness, environment management and the Water Framework Directive (WFD)
408Further Validation of PHABSIM for the Habitat Requirements of Salmonid Fish
409Instream Flow Requirements of the River Wissey, Norfolk, Annex C - April 1993
410A second stage evaluation of the Grant YSI3815 Water Logger
411Charging for discharges scheme : guidance to the engineering industry
412The Test catchment southern : recommendations for statutory water quality objectives
413An assessment of river water quality in the River Kenn
414A survey of ferruginous minewater impacts in the Welsh coalfields
415A survey of ferruginous minewater impacts in the Welsh coalfields
416Dioxins and the River Doe Lea : plain English report
417Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
418Locks and weirs on the river Thames : how do they work?
419The quality of rivers and estuaries in Northumbria region 1990
420A guide to sustainable urban drainage : protecting the quality of our environment
421Estuarial migration of Atlantic salmon in the river Dee (North Wales)
422Doe Lea restoration study : the work of WRc
423The NRA in business : annual review and summary accounts 1993-94
424Cyanobacteria (blue-green algae) in the south west region 1989
425Toxic blue-green algae : a report by the National Rivers Authority