| 51 | Study of the behaviour and impact of two sewage treatment works of the Thames catchment |
|---|
| 52 | Impact of the signal crayfish Pacifastacus leniusculus and its associated crayfishery on the River Thame |
|---|
| 53 | Catches of Migratory Fish in the River Don, Aberdeenshire- Consideration of the Availability of Fish |
|---|
| 54 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
|---|
| 55 | The influence of agriculture on the quality of natural waters in England and Wales |
|---|
| 56 | Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995 |
|---|
| 57 | 1995 drought report : a report on the severity of the drought of 1995 and its effect in the Severn and Trent catchments |
|---|
| 58 | Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme
|
|---|
| 59 | Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group |
|---|
| 60 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
|---|
| 61 | Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species |
|---|
| 62 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
|---|
| 63 | Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996 |
|---|
| 64 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
|---|
| 65 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
|---|
| 66 | Sustainable water resources for the future : values and challenges : consultation document for the Environment Agency's water resources strategies |
|---|
| 67 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
|---|
| 68 | An estimated map of NO2 concentration in the Midlands region : a report produced for the Environment Agency |
|---|
| 69 | Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir |
|---|
| 70 | The River Eden Demonstration Test Catchment (DTC) Data |
|---|
| 71 | The River Cam catchment management plan : annual monitoring report |
|---|
| 72 | Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
|
|---|
| 73 | Second Coniston OS map related to the Seismic Survey 1983 |
|---|
| 74 | Coniston OS map related to the Seismic Survey 1983 |
|---|
| 75 | Quality audit of biological samples for the 1990 river quality survey |
|---|
