| 401 | Policy and practice for the protection of groundwater : regional appendix Anglian region |
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| 402 | Post drought soil water recharge : a study of the processes of recharge |
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| 403 | Continuous water quality monitoring results for the Carnon river |
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| 404 | An assessment of the NRA algal growth inhibition test : 1993/4 |
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| 405 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8 |
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| 406 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9 |
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| 407 | The use of herbicides to control weeds in or near water |
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| 408 | General awareness, environment management and the Water Framework Directive (WFD) |
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| 409 | Further Validation of PHABSIM for the Habitat Requirements of Salmonid Fish |
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| 410 | Instream Flow Requirements of the River Wissey, Norfolk, Annex C - April 1993
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| 411 | A second stage evaluation of the Grant YSI3815 Water Logger |
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| 412 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
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| 413 | An investigation of sewage on the beach at Porthcothan |
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| 414 | Charging for discharges scheme : guidance to the engineering industry |
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| 415 | The Test catchment southern : recommendations for statutory water quality objectives |
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| 416 | The Worcestershire Stour catchment : recommendations for statutory water quality objectives |
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| 417 | An assessment of river water quality in the River Kenn |
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| 418 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 419 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 420 | Dioxins and the River Doe Lea : plain English report |
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| 421 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 422 | Locks and weirs on the river Thames : how do they work? |
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| 423 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 424 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 425 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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