Bathing Water Data : 2021

Portobello (Central)

Sufficient
Portobello (Central)

Number of samples taken : 15
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
17 May 2021 60 <10
02 Jun 2021 20 <10
07 Jun 2021 10 <10
15 Jun 2021 <10 <10
28 Jun 2021 10 30
05 Jul 2021 1400 2100
13 Jul 2021 110 <10
19 Jul 2021 10 10
26 Jul 2021 20 20
02 Aug 2021 30 50
09 Aug 2021 30 100
16 Aug 2021 210 190
23 Aug 2021 70 20
31 Aug 2021 80 10
06 Sep 2021 120 140


Historical record

2015/16
Sufficient
2016/17
Sufficient
2017/18
Sufficient
2018/19
Sufficient
2019/20
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.