| 876 | Report on US study tour of engineered wetlands for the treatment of waste water and mine drainage, March 1992 |
|---|
| 877 | An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10 |
|---|
| 878 | The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392) |
|---|
| 879 | Light scattering in sewage effluent: a study of the effects of angle of scatter an common light sources |
|---|
| 880 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
|---|
| 881 | Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000 |
|---|
| 882 | Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters |
|---|
| 883 | Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales |
|---|
| 884 | Thames estuary benthic programme : a site by site report on the results of macroinvertebrate surveys undertaken during 1990-91 |
|---|
| 885 | Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters |
|---|
| 886 | The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report |
|---|
| 887 | NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992 |
|---|
| 888 | Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards |
|---|
| 889 | Investigating the effect of changing retention time in natural and artificial water bodies: Simulations using PROTECH-D |
|---|
| 890 | Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings |
|---|
| 891 | Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software |
|---|
| 892 | Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3 |
|---|
| 893 | Analytical method for the determination of acid herbicides in sandstone and chalk aquifer materials (Draft RanD note) P439/9/A |
|---|
| 894 | Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report [external version] |
|---|
| 895 | An investigation into the best method to combine national and local data to develop site-specific critical loads |
|---|
| 896 | East Devon public water supply strategy : the existence and potential use in yield analysis of historic flow records |
|---|
| 897 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
|---|
| 898 | NRA Thames region : audit surveys 1991/92 : a report on the re-surveys of selected reaches of river following maintenance dredging |
|---|
| 899 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature |
|---|
| 900 | Algal growth in the impounded waters of a proposed barrage at Cardiff Bay : prediction using 1989 data |
|---|
