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4901River Tavy alleviation of low flow project : Tavistock/Morwellham Canal : investigation into environmental impacts of proposed flow changes
4902Guide to freshwater fishing in the Northern area of Anglian Region
4903Shrewsbury flood defences : the next steps
4904North Devon streams : first annual review, October 1998
4905Proposed water protection zone (River Dee catchment) designation order
4906Fertiliser application dates: AC0116, Warwickshire, 2013
4907Audit of priority species of rivers and wetlands : Southern Damselfly Coenagrion mercuriale in South Hampshire and the Isle of Wight
4908River Adur : fact files 6
4909Strategic review of development and flood risk : Louth coastal catchments
4910Dinobryon Species
4911Policy and practice for the protection of groundwater - Anglian Region appendix
4912Conservation fact file (3/9)
4913Use of airborne remote sensing to assist with industrial site monitoring risk assessment and detection of change : final draft
4914Fisheries statistics 1996 : salmonid and freshwater fisheries statistics for England and Wales
4915Managing water resources NRA
4916National Rivers Authority annual report and accounts 1990/91
4917River Severn upper reaches catchment management plan : first annual review : July 1995 - June 1996
4918Technical Summary - Quantifying Point Source Inputs of Pesticides to River Catchments
49191996 Hit Lists, Final Draft Annex 1A High Load Hit List
4920Rhyzophydium
4921North West recreation, biology and conservation annual report 2000-2001
4922River Welland navigation
4923The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
4924The Identification of Oestrogenic Effects in Wild Fish
4925Environmental appraisal of Derwentwater low water levels : Volume 1 : hydrological and geological study