426 | The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997 |
427 | Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996 |
428 | Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993 |
429 | Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD |
430 | Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994 |
431 | Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region |
432 | Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996 |
433 | Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996 |
434 | Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA |
435 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
436 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
437 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
438 | A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89 |
439 | An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96 |
440 | An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95] |
441 | A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994 |
442 | A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock |
443 | Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare |
444 | A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake |
445 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |
446 | Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system |
447 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
448 | The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions |
449 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
450 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |