| 4576 | Impact assessment of Helston Sewage Treatment Works on water quality of the River Cober Loe Pool |
|---|
| 4577 | Use of Pesticides at two Watercress Farms in Hampshire : A report into the use of |
|---|
| 4578 | Policy and practice for the protection of groundwater - NRA leaflet |
|---|
| 4579 | Analysis of 1995 Biological Survey Data Phase 2: Post Survey Appraisal: Technical Summary |
|---|
| 4580 | Analysis of 1995 Survey Data: Phase 2. Post-survey Appraisal. Unit I: Taxon Distribution Studies |
|---|
| 4581 | Assessment of Sampling Methods for Macroinvertebrates (RIVPACS) in Deep Watercourses |
|---|
| 4582 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
|---|
| 4583 | Lake Benthic Macroinvertebrates 2: Quantifying Uncertainty in Sampling Methodology |
|---|
| 4584 | A study of benthic macroinvertebrate communities of fifteen Norfolk Broads during summer 1990 |
|---|
| 4585 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
|---|
| 4586 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
|---|
| 4587 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
|---|
| 4588 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : AQC audit |
|---|
| 4589 | Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team |
|---|
| 4590 | River Management Guidelines (Operational Activities) Phase 1 - Scoping Study |
|---|
| 4591 | The regulation of fish farming by the National Rivers Authority |
|---|
| 4592 | Herbarium Image: Callitriche hamulata |
|---|
| 4593 | Review of NRA regional emergency procedures - draft report - (continuation) |
|---|
| 4594 | Autumn 2000 floods review regional report : North West Region |
|---|
| 4595 | Reciprocal licensing arrangement for boaters |
|---|
| 4596 | Proposed decision for the future regulation of disposals of radioactive waste from british nuclear fuels plc Sellafield : decision document |
|---|
| 4597 | Site supervision of the Beach Nourishment Scheme |
|---|
| 4598 | River Stort fact file |
|---|
| 4599 | Cyclotella, |
|---|
| 4600 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : primary audit |
|---|
