Title: Water quality report 1993
Author: National Rivers Authority Anglian Region
Document Type: Monograph
Abstract:
The National Rivers Authority is a public body, charged with the duty of improving the Water Environment. Anglian is one of eight Regions. This report gives trends over the past nine years in the chemical quality of rivers. We demonstrate an upgrade since last year. This is matched by an improvement in the biological quality of rivers. The biological quality is easily the best we have ever recorded. The causes of the improvements in river quality in recent years is better effluent quality and river flows in 1993 which were higher than those in 1992. The number of reported Pollution Incidents increased by 4 per cent from 1992 to 1993 though there were fewer bad incidents. The increase from 1991 to 1992 was 12 per cent. A few sites failed criteria for the Dangerous Substances Directive. We report on progress with improvements. We produced proposals for Statutory Water Quality Objectives for two catchments. We produced the maps of Protection Zones for the Groundwater Protection Policy. We advised the Government on the boundaries of Nitrate Sensitive Areas and Nitrate Vulnerable Zones. We introduced a programme of Formal Visits for Pollution Prevention including the inspection of our Groundwater Protection Zones. We report trends for Bathing Waters since 1987. In 1993, five Waters failed. This is a set back since 1992 but the change is not significant statistically. We give trends for the performance of discharges since 1982. The number of enquiries of the Water Act Register has increased steadily since it opened in 1985. There were 925 in 1993, an increase of 44 per cent since 1992.
We calculated the action needed to meet our River Quality Objectives for 7000 kilometres of rivers and negotiated plans and priorities for investment by dischargers.
We used River Quality Indices and the Laboratory Information Management System to ensure efficient use of our monitoring resources.
Publisher: National Rivers Authority
Publication Date: 1993
Publication Place: Peterborough
Subject Keywords: Water quality; Water quality surveys; Sewage; Bathing water; Directive on Dangerous Substances; Directives (European Union); Chemical monitoring; Rivers
Geographic Keywords: EA Anglian; Norfolk; Cambridgeshire; Essex
Extent: 67; + appendices
Permalink: http://www.environmentdata.org/archive/ealit:4132
Total file downloads: 339
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