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351An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit
352An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit
353The regulation of fish farming by the National Rivers Authority
354Sewage treatment works remedial strategy : phase 2 report
355Bathing water quality in England and Wales 1999 : a summary report
356Bathing water quality in England and Wales in 1997 : a summary report
357Bathing water quality in England and Wales in 1998 : a summary report
358Microalgal monitoring in coastal waters 1993-1995
359Salmonid genetics in water : report of an Interim Review Meeting, St. Mellons, 17/4/91
360Groundwater protection zones : methodology and definition of protection zones (Bilingual) : Parthau gwarchod dwr daear : methodoleg a difiniad o'r parthau gwarchod
361River Dee water protection zone : a consultation document
362Taff catchment management plan : consultation report : April 1995
363River Rhymney wildlife habitat improvements
364Conwy catchment management plan : water quality assessment technical memorandum
365Dee catchment management plan : biological assessment of agricultural catchments
366Digital groundwater vulnerability maps : 1 : 100,000 series. Policy and practice for the protection of groundwater
367Framework for national groundwater quality reporting technical report
368NRA fisheries strategy
369NRA recreation strategy
370The Dee regulation scheme (bilingual)
371FRONTIERS evaluation of radar-based rainfall and river flow forecasts April 1992 to March 1993
372Database and atlas of aquatic vascular plants : phase 2 (352/1/N) : interim report
373Afan and Kenfig catchment management plan : consultation report
374Anglesey catchment management plan : consultation report 1996: (bilingual)
375Anglesey catchment management plan : consultation report summary