426 | Doe Lea restoration study : the work of WRc |
427 | The NRA in business : annual review and summary accounts 1993-94 |
428 | Cyanobacteria (blue-green algae) in the south west region 1989 |
429 | Toxic blue-green algae : a report by the National Rivers Authority |
430 | Investigation of salinity in the river Thurne catchment of North East Norfolk |
431 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
432 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
433 | Water quality investigations in the Newlyn river catchment |
434 | An assessment of water quality in the River Yarty catchment |
435 | Investigations of discharges into the River Lemon at Newton Abbot |
436 | Report on monitoring of environmental quality in the Severn Estuary |
437 | Artificial recharge to groundwater in the Otter valley |
438 | The Ely Ouse catchment management plan : final plan : January 1994 |
439 | Water quality in Anglian Region : the first five years |
440 | The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft. |
441 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
442 | Interim review of drought management experience in the North West Region of the National Rivers Authority. lessons learned (29th June 1995 - March 31st 1996) |
443 | Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992 |
444 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
445 | 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 |
446 | Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990 |
447 | Wimbleball 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 |
448 | 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 |
449 | Tamar Lakes project 2001 : initial assessment of nutrient data to identify pollution sources, assess the effect of Tamar Lakes on the downstream water quality and to recommend future monitoring requirements |
450 | A study of the use of Glycol-based de-icers at RAF Lyneham and their impact on local watercourses during the winter of 1999/2000 |