| 226 | Guidance on the Development of Typology and Classification Systems for Transitional and Coastal Waters |
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| 227 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
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| 228 | Investigation into the frequency of storm overflow operation at Bradworthy sewage treatment works (1996) |
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| 229 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk C |
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| 230 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2011 |
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| 231 | Environment Agency Kent area : the Seabrook stream : BSc (Hons) Environmental biology placement report |
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| 232 | Devon area internal report - further investigations into pipe discharges in the Lower Teign estuary |
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| 233 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 234 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk E |
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| 235 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 236 | National marine baseline survey 1995 : littoral cell 7 : Lands End to the Severn Estuary |
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| 237 | A Proposed Scheme To Ensure The Quality Of Data Generated By Laboratories Undertaking Regulatory Ecotoxicological Testing |
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| 238 | A study to investigate and propose remedies for river quality problems in the Madford catchment |
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| 239 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk F |
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| 240 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
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| 241 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 242 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 243 | Microbiological examination of coastal waters in the North West : summary of results 1998 |
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| 244 | National marine baseline survey 1995 : littoral cell 4 : the Thames to Selsey Bill |
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| 245 | Distribution of Macroinvertebrates in English and Welsh Rivers based on the 1995 Survey |
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| 246 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : primary audit |
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| 247 | The disposal of sheep dip waste (R and D Report 11) : effects on water quality |
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| 248 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk F |
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| 249 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
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| 250 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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