Title: Microbiological examination of water contact sports sites in the River Thames catchment 1989
Author: National Rivers Authority Thames Region
Document Type: Monograph
Water samples were taken at sixty-one sites associated with recreational use throughout the River Thames catchment. Samples were obtained from the main River Thames, tributaries, standing waters and the London Docks. The samples were examined for Total Coliforms and Escherichia coli to give a measure of faecal contamination. The results were compared with the standards given in E.C. Directive 76/I6O/EEC (Concerning the quality of bathing water). In general, coliform levels in river waters were higher than those in standing waters. At present, there are three EC Designated bathing areas in the River Thames catchment, none of which are situated on freshwaters. Compliance data calculated in this report is intended for comparison with the EC Directive only and is not statutory. Most sites sampled complied at least intermittently with the E.C. Imperative levels for both Total Coliforms and E.coli. Most sites also complied with the E.C. Guide level for E.coli but the Total Coliform Guide level was failed by the majority of sites on the majority of sampling dates.
Publisher: National Rivers Authority
Publication Date: 1989
Publication Place: Reading
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