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Title: Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water
Author: C. Martin
Document Type: Monograph
Annotation: EA additional title info: January 1992
Bathing waters at Wembury in South Devon have failed the mandatory standards for Faecal Coliforms in 1986, 1987, 1988 and 1990, and for Total Coliforms in 1990. Analysis of routine monitoring data reveals an inverse relationship between salinity and bacterial numbers in bathing water samples. This indicates that Wembury Stream is a significant factor in bathing water failure. In addition all of the mandatory (I) value failures, and more than half of all guide (G) value failures, have coincided with either substantial rainfall, and/or within 3 hours of low water. Rainfall however, seems to be more significant than tidal state in predisposing to failure. Two bacteriological surveys were undertaken; one which coincided with the passage of a depression, and one during a dry weather period. The results were used to assess the influence of rainfall on bacterial numbers in the Wembury Stream, and subsequently in the bathing water.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Exeter
Subject Keywords: Coastal watersBathing Water DirectiveDirectives (European Union)Bacterial monitoringMonitoringSalinity
Geographic Keywords: EA South WestTamar catchment
Extent: 7; + figures
Total file downloads: 293

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