A plot of data collected and analysed by Smmudge 09:36, 2 November 2006 (UTC) (the contributor of the image). Two different measures of faecal contamination are shown as a cross plot and indicate where and when they agree and where they don't. Using two separate measures increases the confidence in identifying contaminated sites. Figure drawn by Stephen M Mudge, 2006. Smmudge 09:36, 2 November 2006 (UTC).

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