451 | Water quality investigations in the Newlyn river catchment |
452 | An assessment of water quality in the River Yarty catchment |
453 | Investigations of discharges into the River Lemon at Newton Abbot |
454 | Report on monitoring of environmental quality in the Severn Estuary |
455 | Artificial recharge to groundwater in the Otter valley |
456 | The Ely Ouse catchment management plan : final plan : January 1994 |
457 | Water quality in Anglian Region : the first five years |
458 | The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft. |
459 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
460 | Interim review of drought management experience in the North West Region of the National Rivers Authority. lessons learned (29th June 1995 - March 31st 1996) |
461 | Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992 |
462 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
463 | 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 |
464 | 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 |
465 | 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 |
466 | 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 |
467 | 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 |
468 | 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 |
469 | Investigation of the effects of sewage treatment works discharges on receiving waters in the Lowermoor Water Treatment Works supply area November 1989 |
470 | Report for Anglian Water, plc on the use of the Orwell Estuary mathematical model to derive long term consent limits for Cliff Quay STW |
471 | Assessment of the water quality before, during and post commissioning of the interim Falmouth sewage treatment scheme - Report No. TWQ/98/02- September 1998 |
472 | Review of water company plans to safeguard summer water supplies : Environment Agency report to the Secretary of State for the Environment. Fourth report |
473 | Results of the oyster (Crassostrea gigas) embryo-larval biassay on samples taken during the winter phase of national maritime monitoring programme 1997 : interim report |
474 | Assessment of the water quality before, during and post commissioning of the interim Falmouth sewage treatment scheme - Report No. TWQ/98/01- May 1998 |
475 | An investigation to determine if South Molton STW is the cause of elevated copper and zinc concentrations downstream in the River Mole [DEV/E/18/95] |