| 6551 | River Bourne system fisheries survey 1989-1990 |
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| 6552 | The effect of the voluntary initiative on water quality |
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| 6553 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Berkshire And The Chilterns |
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| 6554 | Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses |
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| 6555 | Environmental protection final draft report - compliance assessment for EC Freshwater Fish Directive 1991 |
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| 6556 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
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| 6557 | Windermere South Basin Seismic Survey Data 1983 Section 10 |
|---|
| 6558 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
|---|
| 6559 | NRA flood defence strategy |
|---|
| 6560 | Windermere South Basin Seismic Survey Data 1983 Section 03 |
|---|
| 6561 | An Assessment of the Feasibility of Using DGT Procedures to Measure Trace Metals and Radionuclides in Rivers |
|---|
| 6562 | Graphical representation of certain metals and organics concentrations versus flow rates for some of the rivers in Districts 3 and 6 |
|---|
| 6563 | Cyanobacteria (blue-green algae) in the south west region 1989 |
|---|
| 6564 | Draft list of potential target contaminants of fish tissue : interim report (397/4/ST) |
|---|
| 6565 | Report on the millennium chalk streams fly trends study : a survey carried out in 2000 among 365 fly fishermen, fishery owners, club secretaries and river keepers |
|---|
| 6566 | Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards |
|---|
| 6567 | NRA report of blue-green algal monitoring 1992 |
|---|
| 6568 | Toxic blue-green algae : a report by the National Rivers Authority |
|---|
| 6569 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
|---|
| 6570 | Assessment of Field Monitors for Consent Monitoring - Phase 2 |
|---|
| 6571 | Planning liaison with local planning authorities |
|---|
| 6572 | Rivers Nene and Great Ouse eutrophication studies : final report |
|---|
| 6573 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
|---|
| 6574 | River Trent angling guide 2003 |
|---|
| 6575 | Diagnostic Drawing: Volvocales, |
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