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6876Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
6877Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
6878An investigation into bathing water quality at Millendreath
6879Guide to groundwater vulnerability mapping in England and Wales
6880Investigation of existing conservation interests and potential furtherance opportunities
6881Locations of licensed abstractions and hydrometric stations
6882NRA regional, area and catchment boundaries
6883Development of marine phytoplankton methodology and quality assurance procedures : second draft
6884Impacts Of Nutrients In Estuaries - Phase 2 : Summary Report
6885Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
6886Sampling Littoral Diatoms in Lakes for Ecological Status Assessments: a Literature Review
6887Sediment input from coastal cliff erosion : interim report (literature review)
6888Code of practice - marine activities : part I : sea-going vessels
6889Code of practice - marine activities : part II : boats - type II-V
6890Herbarium Image: Callitriche obtusangula
6891A brief history of the River Stour navigation : 1705 to the present day
6892Ely Ouse catchment management plan : first annual review Jan 1994 to Jan 1996
6893Gipping/Stour catchment management plan : final plan
6894Guide to the Medway navigation 1994
6895Harbour of Rye
6896Herbarium Image: Ludwigia palustris
6897Narrowboats on the Thames : useful hints and tips
6898NRA navigation strategy
6899Locks and weirs on the river Thames : how do they work?
6900Catchment drainage studies and flood plain identification : Cockshaw/Halgut Burn at Hexham : section 105 - C30/92 surveys