Bathing Water Data : 2017

Portobello (Central)

Awaiting 2017/18 classification
Portobello (Central)
.

Number of samples taken : 18
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
17 May 2017 <10 <10
06 Jun 2017 490 250
12 Jun 2017 280 20
19 Jun 2017 20 10
21 Jun 2017 30 <10
26 Jun 2017 60 10
04 Jul 2017 8800 2500
Rainfall is thought to have flushed bacteria into the bathing water. High bacteria levels were also found in the nearby Figgate Burn which flows into the bathing water.
06 Jul 2017 30 40
10 Jul 2017 410 170
17 Jul 2017 10 10
26 Jul 2017 50 30
31 Jul 2017 <10 <10
02 Aug 2017 <10 30
09 Aug 2017 680 180
16 Aug 2017 <10 <10
21 Aug 2017 60 20
30 Aug 2017 <10 <10
04 Sep 2017 110 30


Historical record

2015/16
Sufficient
2016/17
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.