Bathing Water Data : 2017

Portobello (West)

Awaiting 2017/18 classification
Portobello (West)
.

Number of samples taken : 15
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
17 May 2017 <10 <10
12 Jun 2017 10 30
19 Jun 2017 40 30
21 Jun 2017 350 40
26 Jun 2017 140 50
04 Jul 2017 250 <10
06 Jul 2017 1700 470
17 Jul 2017 80 50
31 Jul 2017 <10 <10
02 Aug 2017 10 40
09 Aug 2017 460 130
16 Aug 2017 170 150
21 Aug 2017 240 <10
30 Aug 2017 20 <10
04 Sep 2017 90 40


Historical record

2015/16
Poor
2016/17
Poor

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.