| 476 | River Tamar annex 1A investigation : November 1996 COR/96/010 |
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| 477 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk A |
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| 478 | National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames |
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| 479 | Analogue (nutrient), YSI, turbidity and stage data for the Wensum Demontration Test Catchment's monitoring kiosk E in 2011 |
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| 480 | Assessment of the water quality before, during and post commissioning of the interim Falmouth sewage treatment scheme - Report No. TWQ/98/02- September 1998 |
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| 481 | River quality survey NRA Northumbria and Yorkshire region GQA assessment 1994. Part 2 sample point report |
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| 482 | Proposed water protection zone (River Dee catchment) designation order |
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| 483 | River Adur : fact files 6 |
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| 484 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
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| 485 | Regional water quality monitoring and surveillance programme for 1992 : quality assessment of enclosed waters |
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| 486 | Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996 |
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| 487 | Quality audit of biological samples for the 1990 river quality survey |
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| 488 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk E |
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| 489 | National Database of Recreational Fresh Water Quality - Scoping Study |
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| 490 | National marine baseline survey 1995 - baseline laboratory data |
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| 491 | Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3 |
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| 492 | Pollution incidents report - 1998 : Midlands Region |
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| 493 | Environment Agency Kent area : the Seabrook stream : BSc (Hons) Environmental biology placement report |
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| 494 | MCERTS for manual stack emission monitoring |
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| 495 | Graphical representation of certain metals and organics concentrations in relation to flow rates and sampling times for some of the rivers in District 6 |
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| 496 | Smugglers Lane pumping station, Holcombe : frequency of emergency discharges (2003) |
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| 497 | River quality : October 1992 - September 1993 |
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| 498 | Groundwater recharge in urban areas |
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| 499 | Water quality strategy : draft for consultation |
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| 500 | The quality of rivers in England and Wales (1990 to 1995) |
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