| 226 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk C |
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| 227 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 228 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk E |
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| 229 | A Proposed Scheme To Ensure The Quality Of Data Generated By Laboratories Undertaking Regulatory Ecotoxicological Testing |
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| 230 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk F |
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| 231 | Proceedings of the conference National Minewaters 20th -21st April 1998 Tapton Hall Sheffield University |
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| 232 | Distribution of Macroinvertebrates in English and Welsh Rivers based on the 1995 Survey |
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| 233 | The disposal of sheep dip waste (R and D Report 11) : effects on water quality |
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| 234 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
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| 235 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
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| 236 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 237 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk M |
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| 238 | YSI, turbidity and discharge data for the Wensum Demonstration Test Catchment's monitoring kiosk M in 2014 |
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| 239 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2012 |
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| 240 | A report on water quality issues within the Midford Brook catchment - June 1996 |
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| 241 | National marine baseline survey 1995 : littoral cell 11 : Great Orme to the Solway Firth |
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| 242 | Investigation into the frequency of storm overflow operation at Bradworthy sewage treatment works (1996) |
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| 243 | Microbiological examination of coastal waters in the North West : summary of results 1998 |
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| 244 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 245 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report summary : November 1994 |
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| 246 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 247 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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| 248 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 249 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 250 | Improved monitoring for surface water quality : the development of a manual of best practice |
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