4901 | River Tavy alleviation of low flow project : Tavistock/Morwellham Canal : investigation into environmental impacts of proposed flow changes |
4902 | Guide to freshwater fishing in the Northern area of Anglian Region |
4903 | Shrewsbury flood defences : the next steps |
4904 | North Devon streams : first annual review, October 1998 |
4905 | Proposed water protection zone (River Dee catchment) designation order |
4906 | Fertiliser application dates: AC0116, Warwickshire, 2013 |
4907 | Audit of priority species of rivers and wetlands : Southern Damselfly Coenagrion mercuriale in South Hampshire and the Isle of Wight |
4908 | River Adur : fact files 6 |
4909 | Strategic review of development and flood risk : Louth coastal catchments |
4910 | Dinobryon Species |
4911 | Policy and practice for the protection of groundwater - Anglian Region appendix |
4912 | Conservation fact file (3/9) |
4913 | Use of airborne remote sensing to assist with industrial site monitoring risk assessment and detection of change : final draft |
4914 | Fisheries statistics 1996 : salmonid and freshwater fisheries statistics for England and Wales |
4915 | Managing water resources NRA |
4916 | National Rivers Authority annual report and accounts 1990/91 |
4917 | River Severn upper reaches catchment management plan : first annual review : July 1995 - June 1996 |
4918 | Technical Summary - Quantifying Point Source Inputs of Pesticides to River Catchments |
4919 | 1996 Hit Lists, Final Draft Annex 1A High Load Hit List |
4920 | Rhyzophydium |
4921 | North West recreation, biology and conservation annual report 2000-2001 |
4922 | River Welland navigation |
4923 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
4924 | The Identification of Oestrogenic Effects in Wild Fish |
4925 | Environmental appraisal of Derwentwater low water levels : Volume 1 : hydrological and geological study |