| 901 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 902 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 903 | Investigation of salinity in the river Thurne catchment of North East Norfolk |
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| 904 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
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| 905 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
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| 906 | Water quality investigations in the Newlyn river catchment |
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| 907 | The River Alt/Crossens fish stock assessment 2001 |
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| 908 | An assessment of water quality in the River Yarty catchment |
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| 909 | Investigations of discharges into the River Lemon at Newton Abbot |
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| 910 | Report on monitoring of environmental quality in the Severn Estuary |
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| 911 | Conservation and recreation : the Wye challenge : volume 2 : technical appendices |
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| 912 | Artificial recharge to groundwater in the Otter valley |
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| 913 | The Ely Ouse catchment management plan : final plan : January 1994 |
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| 914 | Investigating the Applicability of Passive Sampling Devices to Pesticide Monitoring |
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| 915 | State of the environment report for Thames Region : first update 2001 |
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| 916 | Water quality in Anglian Region : the first five years |
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| 917 | State of the environment report 2001 : West Midlands Region |
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| 918 | Groundwater flooding in the Thames region : winter 2000/01 |
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| 919 | 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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| 920 | 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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| 921 | Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992 |
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| 922 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
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| 923 | 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 |
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| 924 | Catch and release: the survival and behaviour of Atlantic salmon angled and returned to the Aberdeenshire Dee, in spring and early summer |
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| 925 | Spring salmon : a review of factors affecting the abundance and catch of spring salmon from the River Wye and elsewhere, and proposals for stock maintenance and enhancement |
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