676 | Groundwater pollution : evaluation of the extent and character of groundwater pollution from point sources in England and Wales |
677 | Front Cover of A Key to the British Fresh- and Brackish-Water Gastropods, with Notes on their Ecology |
678 | Effects of flow regime on the young stages of salmonid fishes- summary and conclusions based on results for 1981- 1985 |
679 | The use of fertilizer-free buffer strips to protect dyke flora from nitrate pollution on Walland Marsh S.S.S.I |
680 | Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight |
681 | Audit of priority species of rivers and wetlands : Southern Damselfly Coenagrion mercuriale in South Hampshire and the Isle of Wight |
682 | Addendum to the Stanmoor bank feasibility study and appraisal report : Lower Tone flood defence improvements : phase II |
683 | Analytical method for the determination of acid herbicides in sandstone and chalk aquifer materials (Draft RanD note) P439/9/A |
684 | Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998 |
685 | Micro low flows average and low flows estimation in the SW region : validation of regional version 1.1 software |
686 | Report for Welsh Region on selected flood defence schemes and the development of a standard methodology for risk assessment |
687 | Possible replacements for the biochemical oxygen demand (BOD) test and suspended solids as measures of effluent and water quality |
688 | Audit of priority species of rivers and wetlands : Bittern Botaurus stellaris in South Hampshire and the Isle of Wight |
689 | River Lemon corridor survey : a report prepared by Ecologue for the National Rivers Authority (South West Region) |
690 | Audit of priority species of rivers and wetlands : Marsh Fritillary in South Hampshire and the Isle of Wight |
691 | List of R and D outputs September 1989 to September 1995 : the National Rivers Authority's R and D programme |
692 | Front Cover of A Key to the British Species of Freshwater Cladocera, with Notes on their Ecology |
693 | Micro low flows average and low flows estimation in the SW region : validation of regional version 1.3 software |
694 | Guidance to agency officers on the provision of technically competent management (multiple sites) at licensed waste facilities |
695 | Report on US study tour of engineered wetlands for the treatment of waste water and mine drainage, March 1992 |
696 | Scoping Study For Collaborative R and D Between The Environment Agency And L'agence De L'eau Seine Normandie |
697 | Graphical representation of certain metals and organics concentrations versus flow rates for some of the rivers in Districts 3 and 6 |
698 | Manor Wall and Landguard Fort sea defences, Felixstowe : part of the Southern Felixstowe coastal strategy option selection scoping consultation document |
699 | Letter of confirmation of geophysical surveys made in conjunction between Professor G.E.G. Sargent and the FBA 1983-1987 |
700 | Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters |