551 | An investigation into the sewage system and storm overflow at Beer (1997) |
552 | Flood warning information for the Hertfordshire/Essex border : River Stort catchment |
553 | River Axe Fish Study - Evaluation of Fish Movements in the Estuary |
554 | An environmental snapshot for the Anglian region 2003 |
555 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
556 | Identification of water quality problems in the Strat and Neet catchments |
557 | The effects of fishing at low water levels |
558 | 1967 - George and Gideon cutting mbati for the bedroom block. |
559 | 1967 - Quakers arriving on the shore of L.George. |
560 | First annual review of the Taw/Torridge estuary catchment management plan (1996)
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561 | Method for the assessment of river water quality using benthic macroinvertebrates |
562 | Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide |
563 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
564 | The evaluation of a Philips ammonium ion selective electrode (220/14/T) |
565 | The greening of Grasmere: its plankton periodicity in 1988 |
566 | A strategic review of the petroleum refinery Industry Sector |
567 | Guidelines for river corridor surveys in the NRA : February 1992. draft 3 |
568 | Contribution of small streams to potential fish production in the Conwy catchment |
569 | NRA strategy for reducing the concentration of pesticides in controlled waters |
570 | Low-cost modifications of the Crump weir to improve fish passage |
571 | Policy and practice for the protection of floodplains |
572 | The Yarrow catchment : recommendations for statutory water quality objectives |
573 | Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere |
574 | The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T) |
575 | Guidance on the use of Bioassays in Ecological Risk Assessment |