Bathing Water Data : 2018

Portobello (Central)

Awaiting confirmed 2018/19 classification
Portobello (Central)
.

Number of samples taken : 17
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
23 May 2018 <10 <10
04 Jun 2018 30 20
12 Jun 2018 20 <10
14 Jun 2018 30 10
25 Jun 2018 <10 <10
04 Jul 2018 <10 <10
11 Jul 2018 <10 <10
16 Jul 2018 30 10
18 Jul 2018 40 60
24 Jul 2018 <10 <10
01 Aug 2018 90 <10
06 Aug 2018 <10 <10
13 Aug 2018 1100 450
15 Aug 2018 90 40
21 Aug 2018 110 10
29 Aug 2018 30 <10
04 Sep 2018 <10 <10


Historical record

2015/16
Sufficient
2016/17
Sufficient
2017/18
Sufficient

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.