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6926Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
6927Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
6928An investigation into bathing water quality at Millendreath
6929Guide to groundwater vulnerability mapping in England and Wales
6930Investigation of existing conservation interests and potential furtherance opportunities
6931Locations of licensed abstractions and hydrometric stations
6932NRA regional, area and catchment boundaries
6933Development of marine phytoplankton methodology and quality assurance procedures : second draft
6934Impacts Of Nutrients In Estuaries - Phase 2 : Summary Report
6935Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
6936Sampling Littoral Diatoms in Lakes for Ecological Status Assessments: a Literature Review
6937Sediment input from coastal cliff erosion : interim report (literature review)
6938River catchment plans for flood defence and land drainage : River Stort - evaluation report
6939Code of practice - marine activities : part I : sea-going vessels
6940Code of practice - marine activities : part II : boats - type II-V
6941Herbarium Image: Callitriche obtusangula
6942A brief history of the River Stour navigation : 1705 to the present day
6943Ely Ouse catchment management plan : first annual review Jan 1994 to Jan 1996
6944Gipping/Stour catchment management plan : final plan
6945Guide to the Medway navigation 1994
6946Harbour of Rye
6947Narrowboats on the Thames : useful hints and tips
6948NRA navigation strategy
6949Locks and weirs on the river Thames : how do they work?
6950Catchment drainage studies and flood plain identification : Cockshaw/Halgut Burn at Hexham : section 105 - C30/92 surveys