Bathing Water Data : 2017

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Number of samples taken : 4
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
18 May 2017 <10 <10
01 Jun 2017 50 800
Heavy rainfall during the 31st May and 30th May is considered to have flushed bacteria into Thurso bathing water on 1st June.
07 Jun 2017 >10000 3800
This high result is considered to be due to torrential rain over the 18 hour period prior to sampling.
14 Jun 2017 <10 <10


Historical record

2015/16
Sufficient
2016/17
Good

Results explained

The annual bathing water classification is determined using statistics calculated from results taken over the previous four years. The water quality indicators we test for are the bacteria E Coli (EC) and intestinal enterococci (IE). The statistics take account of both the average value and the range of values in the four year dataset.

Single sample results above 500 EC and 200 IE are indicative that water was of low quality when the sample was taken. For inland waters the low quality boundaries are higher at 1000 EC and 400 IE.