551 | Pearl Mussel Image: First out of the blocks |
552 | FWR - User guide for assessing the impact of combined sewer overflows |
553 | The National Centre for Environmental Data and Surveillance : general leaflet |
554 | Project management and the scheme of delegation : a summary guide : April 1995 |
555 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
556 | The Use of Immuno Based Techniques for Chemical Analysis |
557 | Snapshots of the environment : integrated river basin management |
558 | Water from the River Dee : a working partnership |
559 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
560 | Snapshots of the environment : understanding coastal water quality |
561 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
562 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
563 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
564 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
565 | The Mersey estuary : a report on environmental quality |
566 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
567 | Catches of migratory fish in the River Don, Aberdeenshire |
568 | Stream survey and assessment in the Ashford and Folkestone areas |
569 | The 1990 river and estuary classification survey of England and Wales |
570 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
571 | An Independent Review of the Defra/EA Research and Development Joint |
572 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
573 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
574 | General guide to the prevention of water pollution |
575 | Guidance for the Development of Housing on Land Affected by Contamination |