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Title: Regional water quality monitoring and surveillance programme for 1992 : biological quality assessment of rivers
Author: J.A.D. Murray-Bligh
Document Type: Monograph
This report describes the routine biological river quality monitoring programme undertaken by NRA South West Region in 1992. 478 sites are to be surveyed during 1992. The complete programme comprises approximately 950 sites covering 4230 km of river and 27 km of canal. The full programme is completed in two years, with half the sites surveyed in any one year. Twenty-two key sites are visited every year, to assess annual changes? seven of the sites are solely to monitor discharges from sewage treatment works (STWs) and are not used for river quality classification. The complete programme matches the routine chemical monitoring programme, but includes additional sites so that all reaches which had been assigned River Quality Objectives are monitored. Fourteen sites, originally programmed for the 1993 survey, are also to be surveyed in 1992 to support the Operational Investigation into the impact of the Wheal Jane pollution incident on the River Carnon.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Exeter
Subject Keywords: RiversWater quality surveysMonitoringBiological indicatorsAssessment
Geographic Keywords: EA South West
Extent: 41
Total file downloads: 47

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