Bathing Water Data : 2016

Portobello (West)

Poor
Portobello (West)
.

Number of samples taken : 17
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
23 May 2016 110 10
08 Jun 2016 330 110
13 Jun 2016 230 30
21 Jun 2016 50 10
28 Jun 2016 350 100
30 Jun 2016 >10000 450
SEPA investigations found no indication of specific pollution problems and no previous heavy rainfall. However, microbial source tracking indicates that seagulls were the most likely source of the elevated bacteria levels at the bathing water.
05 Jul 2016 250 120
11 Jul 2016 60 10
13 Jul 2016 80 90
19 Jul 2016 30 20
26 Jul 2016 30 130
28 Jul 2016 30 <10
01 Aug 2016 90 10
10 Aug 2016 90 60
24 Aug 2016 140 30
29 Aug 2016 20 <10
07 Sep 2016 40 20


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.