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526River Valency and Crackington Streams catchment river water quality classification 1990
527River Axe abstraction : implications for water quality
528Annual classification of river water quality 1991
529Summary report on environmental developments : volume 1 : legislation and European practice : October 1988
530Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive
531Environmental planning issues in the North Wessex area
532River quality objectives
533River Seaton catchment river water quality classification 1991
534North West Norfolk catchment management plan : consultation report : March 1995
535Investigation of the effects of sewage treatment works discharges on receiving waters in the Lowermoor Water Treatment Works supply area November 1989
536Strategy for the use of field instrumentation in water quality monitoring
537Freshwater Tamar and tributaries catchment management plan : action plan
538Exe freshwater model : quasar model design
539Macroinvertebrates of the River Nar : Great Ouse catchment : draft report
540River Wissey investigations : linking hydrology and ecology March 1994
541Regional water quality monitoring and surveillance programme for 1992 : quality investigations in controlled waters
542Upper Nene catchment management plan : consultation report summary
543River Glen : river channel assessment : main report
544Dorset Stour : first annual review : January 1998 - December 1998
545Performances of sewage treatment works discharging to an estuary : a marine environment or sensitive area : draft final report
546NRA baseline estuary and coastal waters monitoring programme
547Upper Bristol Avon catchment management : consultation report
548Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment
549River Lynher catchment river water quality classification 1990
550'Sea Vigil' water quality monitoring : Lincolnshire coast report 1994