476 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
477 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
478 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report summary : November 1994 |
479 | The distribution of PCDDS and PCDFS in surface freshwater systems 2nd Interim Progress Report - February 1993 |
480 | A study to investigate and propose remedies for river quality problems in the Madford catchment |
481 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
482 | Impact assessment of Meldon quarry on water quality in the West Okement river |
483 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
484 | The government's policy for a public regulatory body in a privatised water industry |
485 | Less sensitive areas and candidate high natural dispersion areas in the North West region |
486 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
487 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
488 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
489 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
490 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
491 | The Impact Of Grazing And Upland Management On Erosion And Runoff: Additional Information |
492 | Extending Rutland yield analysis to 1933 : supporting documentation for the regional water resources strategy |
493 | The River Babingley. Volume 1 : executive summary : a report for National Rivers Authority, Anglian Region |
494 | The effect of ferric dosing of lakes on benthic invertebrates : first year report |
495 | The hydrological effects of demand management : project definition stage report : 28th May 1996 |
496 | Improved monitoring for surface water quality : the development of a manual of best practice |
497 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2011 |
498 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2011 |
499 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk A |
500 | Use Of Pattern Recognition To Identify The Source Of An Oil Spill On An Inland Water |