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426A guide to sustainable urban drainage : protecting the quality of our environment
427Estuarial migration of Atlantic salmon in the river Dee (North Wales)
428Doe Lea restoration study : the work of WRc
429The NRA in business : annual review and summary accounts 1993-94
430Cyanobacteria (blue-green algae) in the south west region 1989
431Toxic blue-green algae : a report by the National Rivers Authority
432Investigation of salinity in the river Thurne catchment of North East Norfolk
433Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD)
434Managing water abstraction : the catchment abstraction management strategy process : April 2001
435Water quality investigations in the Newlyn river catchment
436An assessment of water quality in the River Yarty catchment
437Investigations of discharges into the River Lemon at Newton Abbot
438Report on monitoring of environmental quality in the Severn Estuary
439Artificial recharge to groundwater in the Otter valley
440The Ely Ouse catchment management plan : final plan : January 1994
441The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft.
442Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997
443Interim review of drought management experience in the North West Region of the National Rivers Authority. lessons learned (29th June 1995 - March 31st 1996)
444Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992
445Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus
446An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991
447Water company plans to safeguard 1997 summer water supplies : Environment Agency report to the Secretary of State for the Environment : fifth report in a series
448Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990
449Wimbleball pumped storage scheme : review of environmental statement (appendix B3) : implications for water quality in Wimbleball Reservoir, the River Exe (non QUASAR) parameters) and the Exe estuary
450The 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