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Results : Portobello (West)

Sample results

Date Escherichia coli (cfu/100ml) Intestinal enterococci (cfu/100ml)
15 May 2024 40 <10
05 June 2024 150 20
11 June 2024 180 40
17 June 2024 30 <10
19 June 2024 30 10
26 June 2024 90 130
03 July 2024 30 20
11 July 2024 70 10
18 July 2024 40 <10
22 July 2024 20 40
30 July 2024 30 120
01 August 2024 230 140
08 August 2024 100 30
14 August 2024 90 10
21 August 2024 <10 10
28 August 2024 20 10
02 September 2024 800 150
10 September 2024 160 100

Historic results

Please note: There were no classifications calculated for 2020/21 due to the shortened season and reduced sampling during the COVID pandemic.

Year Classification
2017 Poor
2018 Sufficient
2019 Sufficient
2020 See above
2021 Sufficient
2022 Sufficient
2023 Sufficient
UKAS: ISO 17025

These Results were produced by a UKAS accredited testing laboratory No. 1327.

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.