| 276 | Old Bedford incorporating the Middle Level and Ouse Washes : consultation report - May 1997 |
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| 277 | Impact assessment of Helston Sewage Treatment Works on water quality of the River Cober Loe Pool |
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| 278 | Improved monitoring for surface water quality : the development of a manual of best practice |
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| 279 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 280 | An audit of performance in the processing of macro-invertebrate samples in 1992 |
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| 281 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk D |
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| 282 | Annual review of the Colne, Upper Lee, North London and Roding, Beam and Ingerbourne catchments |
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| 283 | Hope Cove : non-compliance in 1998 with the European Community bathing water directive (76/160/EEC) |
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| 284 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 285 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2011 |
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| 286 | An assessment of mercury contamination in the Red River catchment : final draft report |
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| 287 | Report on the By Brook low flow investigations : October 2001 : volume 1 : report |
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| 288 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk A |
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| 289 | The development of a portable battery-powered telemetry system for use in water quality investigations |
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| 290 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk C |
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| 291 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk D |
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| 292 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 293 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk M |
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| 294 | Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999 |
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| 295 | YSI, turbidity and discharge data for the Wensum Demonstration Test Catchment's monitoring kiosk M in 2013 |
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| 296 | An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report |
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| 297 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2014 |
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| 298 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2013 |
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| 299 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk B |
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| 300 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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