| 651 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 652 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 653 | Eel and elver studies in the Severn : interim report (256/6/ST) |
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| 654 | Fishery survey of the Bridgwater and Taunton Canal |
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| 655 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 656 | Air dispersion climate from the Castle Cement works at Ribblesdale |
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| 657 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 658 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
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| 659 | Doe Lea restoration study : the work of WRc |
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| 660 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
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| 661 | The NRA in business : annual review and summary accounts 1993-94 |
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| 662 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 663 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 664 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
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| 665 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
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| 666 | Report on monitoring of environmental quality in the Severn Estuary |
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| 667 | INP-integrated North Sea programme : workshop 14-15th May 1992, Rijkswaterstaat,The Hague |
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| 668 | Artificial recharge to groundwater in the Otter valley |
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| 669 | State of the environment report for Thames Region : first update 2001 |
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| 670 | State of the environment report 2001 : West Midlands Region |
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| 671 | Groundwater flooding in the Thames region : winter 2000/01 |
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| 672 | The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft. |
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| 673 | Hams Hall Power Station. A survey of the flora and fauna of freshwater habitats in the environs of Hams Hall Power Station, Birmingham |
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| 674 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
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| 675 | Interim review of drought management experience in the North West Region of the National Rivers Authority. lessons learned (29th June 1995 - March 31st 1996) |
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