Bathing Water Data : 2018

Portobello (West)

Poor
Portobello (West)
.

Number of samples taken : 15
Date Escherichia coli
(cfu/100ml)
Intestinal enterococci
(cfu/100ml)
23 May 2018 140 10
04 Jun 2018 120 10
12 Jun 2018 30 20
14 Jun 2018 <10 <10
20 Jun 2018 3200 310
Samples were taken following a period of heavy rainfall. As a result, bacteria was flushed into the bathing water. Poor water quality was forecast at this time.
25 Jun 2018 <10 <10
04 Jul 2018 <10 <10
11 Jul 2018 160 10
16 Jul 2018 40 30
18 Jul 2018 70 40
24 Jul 2018 <10 <10
01 Aug 2018 <10 70
06 Aug 2018 560 140
13 Aug 2018 1600 360
15 Aug 2018 80 30


Historical record

2015/16
Poor
2016/17
Poor
2017/18
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.