| 176 | Distribution of PCDDS an PCDFS in surface freshwater systems draft final report R and D Project 330 |
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| 177 | Post mortem study of otters in England and Wales 1992-2003 |
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| 178 | Discharge consents : monitoring and compliance in 1994 |
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| 179 | Abandoned mines and the water environment : report of the National Rivers Authority |
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| 180 | Usk catchment management plan : consultation report summary : April 1995 |
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| 181 | Snapshots of the environment : integrated river basin management |
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| 182 | Water from the River Dee : a working partnership |
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| 183 | River maintenance evaluation |
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| 184 | Herbarium Image: Oenanthe fistulosa |
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| 185 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
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| 186 | Atlantic Salmon Trust Winter Journal 2005/2006 |
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| 187 | National marine baseline survey 1995 : littoral cell 9 : St David's Head to Bardsey Sound |
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| 188 | National coastal baseline survey manual : revision 3.0 |
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| 189 | Upper Wye catchment management : consultation report summary : June 1993 |
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| 190 | Recommendations for a scheme of water quality classification for setting statutory water quality objectives |
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| 191 | Remedial Treatment Action Data Sheets. Version 1.0 |
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| 192 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 193 | River quality in England and Wales : a report of the 1990 survey |
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| 194 | Policy and practice for the protection of groundwater : draft for consultation |
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| 195 | Impact of lowland forestry on water quality (P-22) |
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| 196 | Snapshots of the environment : understanding coastal water quality |
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| 197 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 198 | Demand for irrigation water |
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| 199 | Bathing waters report 1996 |
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| 200 | Pesticide aquatic pollution incidents in England and Wales 1992-96 |
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