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501The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual)
502The Use of Immuno Based Techniques for Chemical Analysis
503Charging for discharges scheme : guidance to the power generation industry
504Water from the River Dee : a working partnership
505Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991
506Development of an Estuarine Classification Scheme for the Water Framework Directive
507Policy and practice for the protection of groundwater : draft for consultation
508Snapshots of the environment : understanding coastal water quality
509The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)
510The evaluation of ingold ion selective ammonium electrode (220/23/T)
511Water related recreation strategy for the southern region : consultation draft 1997
512Rivers of the Isle of Wight fact file
513Stratification in the Severn Estuary- Physical aspects and biological consequences
514The Mersey estuary : a report on environmental quality
515Stream survey and assessment in the Ashford and Folkestone areas
516Alternative Methods For The Biological Classification Of Rivers
517Toxic blue-green algae : a report by the National Rivers Authority
518Lakes, Ponds and Reservoirs in the Southern Region (NRA)
519Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
520The 1990 river and estuary classification survey of England and Wales
521Dioxins and the River Doe Lea : plain English report
522Water quality in Anglian Region : the first five years
523The evaluation of an orion ammonium ion selective electrode (220/15/T)
524The quality of rivers and estuaries in Northumbria region 1990
525General awareness, environment management and the Water Framework Directive (WFD)