| 4551 | Survey of water resources modelling activities February 1991 |
|---|
| 4552 | Discharge monitoring in the Kennet catchment. Part 1 : ecological effects of sewage and trade effluents |
|---|
| 4553 | Efficacy and environmental effects of peracetic acid as a sewage disinfectant (231/6/SW) |
|---|
| 4554 | Mesotrophic rivers in Anglian region : progress report 4 December 1995 |
|---|
| 4555 | Risk based inspection of flood defence assets |
|---|
| 4556 | Environmental Indicators, Their Use And Development In Selected Member States |
|---|
| 4557 | Biological characteristics and exploitation of sea trout in the River Tywi during 1989 |
|---|
| 4558 | High Resolution in Situ Monitoring of Flow Between Aquifers and Surface Waters |
|---|
| 4559 | Delabole Stream (abandoned minewater) water quality investigation (total zinc) |
|---|
| 4560 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report summary : November 1994 |
|---|
| 4561 | Defining Angler Opportunity |
|---|
| 4562 | Ken Clarke |
|---|
| 4563 | Water Level Management Plans - Scoping Study |
|---|
| 4564 | Tributyltin in the aquatic environment : final report to the National Rivers Authority September 1990 to September 1992 |
|---|
| 4565 | Farm Waste Disposal Through Brokerage. Phase 1- Scoping Study |
|---|
| 4566 | Nitrogen Balances in Landfills |
|---|
| 4567 | Water quality archive determinand list |
|---|
| 4568 | Economic changes to the value of water environment : draft final report |
|---|
| 4569 | Further Development and Testing Of Artificial Intelligence Systems for the Classification and Diagnosis of River Quality Based on Biological and Environmental Data |
|---|
| 4570 | Software profile : a user manual for AWSTAGE |
|---|
| 4571 | Micro computer guidelines |
|---|
| 4572 | Bedford Oolite aquifer wells history to September 1989 |
|---|
| 4573 | The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1997; |
|---|
| 4574 | River Strat catchment river water quality classification 1990 |
|---|
| 4575 | Guidelines on statutory returns : Dangerous Substances Directive : List 2 substances |
|---|
