651 | An assessment of river water quality in the River Kenn |
652 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
653 | Narrowboats on the Thames : useful hints and tips |
654 | Locks and weirs on the river Thames : how do they work? |
655 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
656 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
657 | Environmental statement for the River Wandle flood alleviation scheme contract one (C1) |
658 | Cyanobacteria (blue-green algae) in the south west region 1989 |
659 | Toxic blue-green algae : a report by the National Rivers Authority |
660 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
661 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
662 | INP-integrated North Sea programme : workshop 14-15th May 1992, Rijkswaterstaat,The Hague |
663 | State of the environment report 2001 : West Midlands Region |
664 | The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft. |
665 | Hams Hall Power Station. A survey of the flora and fauna of freshwater habitats in the environs of Hams Hall Power Station, Birmingham |
666 | High level principles for OPRA-based schemes : guidance on the development and implementation of risk rating and regulatory resource planning systems in the Environment Agency |
667 | Interim review of drought management experience in the North West Region of the National Rivers Authority. lessons learned (29th June 1995 - March 31st 1996) |
668 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
669 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
670 | Water company plans to safeguard 1997 summer water supplies : Environment Agency report to the Secretary of State for the Environment : fifth report in a series |
671 | Catch and release: the survival and behaviour of Atlantic salmon angled and returned to the Aberdeenshire Dee, in spring and early summer |
672 | The quality of rivers and canals in England and Wales (1990 to 1992) : as assessed by a new general quality assessment scheme : report of the National Rivers Authority |
673 | Implications of draft EC Directive concerning municipal waste water treatment : Memorandum submitted by the NRA to House of Lords Select Committee on the European Communities |
674 | Use of rod catch-effort data to monitor migratory salmonids in Wales : a report submitted in part fulfillment of the requirements of the course |
675 | Technical review of the post-closure safety case for the Drigg low-level radioactive waste disposal site : PCSC development programme review plan and instructions for reviewers : guidance note 1, December 1997 |