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7026The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria
7027A survey of ferruginous minewater impacts in the Welsh coalfields
7028A simple key to canal water quality using a biological technique
7029Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3
7030NRA Welsh Region South West Area Minewaters Workshop, 23 May 1995, Swansea : summary report
7031The impact of ferruginous minewater break-outs on the environmental quality of the Rivers Rhymney, Ebbw and Sirhowy : summary report
7032A survey of ferruginous minewater impacts in the Welsh coalfields
7033Dioxins and the River Doe Lea : plain English report
7034A review of the industrial uses of continuous monitoring systems : incineration processes : a report produced for NCCA and ETSU by Entec
70351994 general quality assessment (GQA) Cornwall area
7036Kennet catchment : time of travel studies final report
7037Chlorohyll and Phosphorus Classifications for UK Lakes
7038Herbarium Image: Phalaris arundinacea
7039Herbarium Image: Orobanche elatior
7040An appraisal of the options for the structure of the water resources function in Thames Region NRA
7041Grey tide against green marsh : sea defences in East Anglia : synopsis of proceedings of conference held at Snape on 1st November 1991
7042Public participation and the Water Framework Directive
7043Hampshire salmon seminar 5th October 1993
7044Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
7045Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
7046An investigation into bathing water quality at Millendreath
7047Guide to groundwater vulnerability mapping in England and Wales
7048Investigation of existing conservation interests and potential furtherance opportunities
7049Locations of licensed abstractions and hydrometric stations
7050NRA regional, area and catchment boundaries