51 | Scope for growth and levels of contaminants in mussels from the Wash. Phase 2 |
52 | Notice to water only companies of programme of environmental obligations agreed by the Secretary of State for the Environment, Transport and the Regions and for Wales : periodic review of water company price limits 2000-2005 |
53 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report |
54 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
55 | River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991 |
56 | River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire |
57 | The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558) |
58 | Anglian radar information project : report no. 5 : quantitative precipitation estimation with weather radar : problems and solutions for the National Rivers Authority |