| 51 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
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| 52 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
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| 53 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
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| 54 | State of the environment 2005 : the Environment Agency's assessment of the environment in South East England |
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| 55 | Back to life : bringing the environment back to the people of the North West |
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| 56 | State of the environment 2003 : the Environment Agency's assessment of the environment in South East England |
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| 57 | State of the Environment 2006 : the Environment Agency's assessment of the environment in South East England |
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| 58 | The Natural (Baseline) Quality Of Groundwaters In England And Wales. The Chalk Of The South Downs |
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| 59 | Fish Tanks in the Hatchery |
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| 60 | The Ferry Boat in 1905 |
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| 61 | The industrial fishery for sandeels |
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| 62 | Annex to 'achieving the quality' |
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| 63 | The Aire catchment (river factfiles) |
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| 64 | The water bill : trickle irrigation |
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| 65 | Guardian of the water environment |
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| 66 | Algae demonstrations in the lab |
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| 67 | The Tyne catchment (river factfiles) |
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| 68 | The Calder catchment (river factfiles) |
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| 69 | Paleolimnological Approaches to the WFD |
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| 70 | Guide to the Medway navigation |
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| 71 | Uses of the water environment |
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| 72 | The Agency's conservation duties (SD2) |
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| 73 | Water in the Thetford area
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| 74 | The River Ash : enhancement project |
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| 75 | The Development of LandSim 2.5 |
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