| 276 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 277 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk E |
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| 278 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk B |
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| 279 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk F |
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| 280 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk E |
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| 281 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
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| 282 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk C |
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| 283 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk D |
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| 284 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk B |
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| 285 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk D |
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| 286 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk C |
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| 287 | National marine baseline survey 1995 : littoral cell 11 : Great Orme to the Solway Firth |
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| 288 | National marine baseline survey 1995 : littoral cell 7 : Lands End to the Severn Estuary |
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| 289 | The Warwickshire Avon catchment management plan : consultation report summary (NRA Severn-Trent 44) |
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| 290 | National marine baseline survey 1995 : littoral cell 4 : the Thames to Selsey Bill |
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| 291 | Impact assessment of Helston Sewage Treatment Works on water quality of the River Cober Loe Pool |
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| 292 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2012 |
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| 293 | Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report |
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| 294 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
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| 295 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2011 |
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| 296 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
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| 297 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2012 |
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| 298 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2013 |
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| 299 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 300 | Guidance on the Development of Typology and Classification Systems for Transitional and Coastal Waters |
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