4651 | Grafham Water 1992 : biological monitoring re : FeSo4 dosing supplementary report : zooplankton |
4652 | Groundwater protection zones : methodology and definition of protection zones (Bilingual) : Parthau gwarchod dwr daear : methodoleg a difiniad o'r parthau gwarchod |
4653 | River Dee water protection zone : a consultation document |
4654 | Groundwater protection policy |
4655 | Appraisal of nature conservation and recreation improvement measures at the Environment Agency's estates |
4656 | Conservation, access and recreation - annual report 1996/1997 |
4657 | Conservation, access and recreation - annual report 1997/98 |
4658 | Conservation, access and recreation - annual report 1998/1999 |
4659 | Conservation, access and recreation 1999/2000 |
4660 | Conservation, access and recreation report 2000/2001 |
4661 | Annual classification of river water quality 1991 : identification of possible causes of non-compliance with river quality objectives |
4662 | River Rhymney wildlife habitat improvements |
4663 | Classification of listed substances for the purposes of the EC groundwater directive (80/68/EEC) : technical report |
4664 | Digital groundwater vulnerability maps : 1 : 100,000 series. Policy and practice for the protection of groundwater |
4665 | The fuel additive MTBE - a groundwater protection issue? |
4666 | Framework for national groundwater quality reporting technical report |
4667 | Low flow estimation in artificially influenced catchments : interim report December 1992 |
4668 | River Itchen data file : Woodmill, Swaythling, Fleming Park, Eastleigh, Monmouth Close, Chandlers Ford |
4669 | Abstraction licensing and water resources : a brief guide for potential abstractors |
4670 | Air pollution : agreed protocol |
4671 | Changes to the water abstraction licensing system |
4672 | EC directives and the control of water pollution : fact file |
4673 | Exeter flood defence scheme |
4674 | Llyn Clywedog (NRA Severn-Trent 64)
|
4675 | NRA recreation strategy |