| 51 | The NRA in business : annual review and summary accounts 1993-94 |
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| 52 | Our Midlands environment : the Environment Agency in action |
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| 53 | Policy and practice for the protection of groundwater : draft for consultation |
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| 54 | Water resources development strategy : the Resplan Model. Supplementary report no. 7 |
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| 55 | Policy and practice for the protection of groundwater |
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| 56 | Algal blooms in the Lower Tees- Perspectives and prospects
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| 57 | Water quality 2000 : a strategy for the water quality function |
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| 58 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 59 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
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| 60 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
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| 61 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2002 : The Environment Agency (CEH Report Ref: C00158/31) |
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| 62 | The quality of rivers and canals in England and Wales (1990 to 1992) : as assessed by a new general quality assessment scheme : report of the National Rivers Authority |
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| 63 | Water Quality and Freshwater Flow in the Thames Tideway in Relation to Salmon Migration, with particular reference to the effects of low flow in 1990 |
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| 64 | Water company plans to safeguard 1997 summer water supplies : Environment Agency report to the Secretary of State for the Environment : fifth report in a series |
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| 65 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 66 | National marine baseline survey 1995 : littoral cell 2 : Flamborough Head to the Wash |
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| 67 | National marine baseline survey 1995 : littoral cell 4 : the Thames to Selsey Bill |
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| 68 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 69 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 70 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
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| 71 | Thames Environment 21. The Environment Agency strategy for land-use planning in Thames Region |
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| 72 | The government's policy for a public regulatory body in a privatised water industry |
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| 73 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
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| 74 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
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| 75 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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