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551Quantification of the relationship between effluent quality and biological quality : final report
552Charging for discharges scheme : guidance to the agricultural industry
553Priority and other specific polluting substances and the Water Framework Directive
554Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
555An Aerial Photograph of Ferry House and The Pearsall Building
556Review of existing practices for fluvial grass management throughout the NRA (213/1/Y)
557Research and development in the Environment Agency : a short guide
558Clear Options towards an operational model for the Lee Valley Reservoirs
559The Cam catchment : recommendations for statutory water quality objectives
560The River Cam catchment management plan : annual monitoring report
561Guidance for estimating the air quality impact of stationary sources - GN 24
562Introductory guidance on the Agency's contribution to sustainable development (SD1)
563The National Centre for Toxic and Persistent Substances
564Algal blooms in the Lower Tees- Perspectives and prospects
565Pearl Mussel Image: First out of the blocks
566FWR - User guide for assessing the impact of combined sewer overflows
567The National Centre for Environmental Data and Surveillance : general leaflet
568Project management and the scheme of delegation : a summary guide : April 1995
569The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual)
570The Use of Immuno Based Techniques for Chemical Analysis
571Snapshots of the environment : integrated river basin management
572Water from the River Dee : a working partnership
573Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991
574River quality in England and Wales : a report of the 1990 survey
575The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)