51 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
52 | River quality in England and Wales : a report of the 1990 survey |
53 | The 1990 river and estuary classification survey of England and Wales |
54 | Investigation into the cause of high phenols in Budleigh Brook (1998) |
55 | Leachate Monitoring For The Brogborough Test Cell Project |
56 | An investigation into the sewage system and storm overflow at Beer (1997) |
57 | Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide |
58 | Guidance on the use of Bioassays in Ecological Risk Assessment |
59 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
60 | Assessment of the Impact of Nutrient Removal on Eutrophic Rivers |
61 | Biological water quality monitoring in the Midlands region |
62 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |
63 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
64 | Corporate Environmental Reporting in the UK Water Sector - A Concise Review |
65 | Wash zone report. Part 1 : the Wash NRA monitoring review |
66 | Policy and practice for the protection of groundwater : Thames Region appendix |
67 | Quality audit of biological samples for the 1990 river quality survey |
68 | A review of the optimum accuracy of flow and rainfall forecasting |
69 | The quality of rivers in England and Wales (1990 to 1995) |
70 | The National Centre for Environmental Data and Surveillance : business plan 1999/2000 |
71 | The fuel additive MTBE - a groundwater protection issue? |
72 | The Ribble Estuary 1992 surveys : summary of results |
73 | A report on the River Chew at Chewton Mendip, 6th August 1992 |
74 | An investigation into the bathing water quality at Porthallow |
75 | An investigation of the water quality in three Plymouth catchment streams |