Bathing Water Data : 2016

.

Number of samples taken : 18
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
18 May 2016 20 <10
01 Jun 2016 <10 <10
08 Jun 2016 10 <10
16 Jun 2016 <10 <10
21 Jun 2016 70 10
23 Jun 2016 <10 10
27 Jun 2016 20 <10
05 Jul 2016 <10 <10
07 Jul 2016 <10 <10
11 Jul 2016 <10 <10
20 Jul 2016 2600 1000
The exceedance at Rosemarkie was likely to be attributable to heavy rainfall causing short term diffuse pollution. This is supported by elevated bacterial counts in the Rosemarkie Burn on the same day. A sample taken on the 25th July confirmed that there was no lasting pollution at the bathing water.
25 Jul 2016 <10 <10
03 Aug 2016 20 40
08 Aug 2016 30 70
17 Aug 2016 30 10
22 Aug 2016 <10 <10
31 Aug 2016 10 10
06 Sep 2016 <10 20


Historical record

2015/16
Good
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.