Bathing Water Data 2017
Details of bathing water quality for 2017. This information will be update for each location every Monday from June to mid September 2017.
Results
Individual sample results below 250 EC and 100 IE are typical of an Excellent classification. Results above these values and up to 500 EC and 200 IE are typical of a Good or Sufficient classification.
These results are used for the annual bathing water classification which is a statistical assessment based on a four year data set.
Ballycastle
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 10 | 10 |
| 5 June 2017 | 10000 | 3300 |
| 7 June 2017 | 70 | 37 |
| 12 June 2017 | 68 | 28 |
| 14 June 2017 | 10 | 10 |
| 20 June 2017 | 47 | 10 |
| 27 June 2017 | 10 | 10 |
| 3 July 2017 | 46 | 47 |
| 6 July 2017 | 11 | 10 |
| 14 July 2017 | 47 | 12 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 81 | 11 |
| 31 July 2017 | 26 | 10 |
| 8 Aug 2017 | 18 | 10 |
| 14 Aug 2017 | 10 | 10 |
| 22 Aug 2017 | 10 | 10 |
| 29 Aug 2017 | 20 | 10 |
| 4 Sept 2017 | 25 | 10 |
| 6 Sept 2017 | 25 | 25 |
| 12 Sept 2017 | 12 | 10 |
Ballygalley
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 23 | 10 |
| 5 June 2017 | 10 | 10 |
| 7 June 2017 | 69 | 10 |
| 12 June 2017 | 27 | 10 |
| 14 June 2017 | 10 | 10 |
| 20 June 2017 | 39 | 13 |
| 27 June 2017 | 55 | 20 |
| 3 July 2017 | 90 | 10 |
| 6 July 2017 | 32 | 10 |
| 14 July 2017 | 150 | 22 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 10 | 11 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 760 | 180 |
| 14 Aug 2017 | 10 | 10 |
| 22 Aug 2017 | 10 | 10 |
| 29 Aug 2017 | 36 | 19 |
| 4 Sept 2017 | 10 | 10 |
| 6 Sept 2017 | 70 | 32 |
| 12 Sept 2017 | 230 | 140 |
Ballyholme
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 20 | 10 |
| 6 June 2017 | 260 | 62 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 21 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 10 | 12 |
| 5 July 2017 | 1800 | 280 |
| 7 July 2017 | 100 | 100 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 180 | 95 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 59 | 10 |
| 9 Aug 2017 | 740 | 250 |
| 15 Aug 2017 | 99 | 15 |
| 21 Aug 2017 | 25 | 10 |
| 23 Aug 2017 | 89 | 64 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 62 | 50 |
| 11 Sept 2017 | 31 | 10 |
Ballyhornan (candidate site)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 32 | 10 |
| 5 June 2017 | 10 | 10 |
| 7 June 2017 | 10 | 10 |
| 12 June 2017 | 10 | 10 |
| 14 June 2017 | 14 | 10 |
| 20 June 2017 | 10 | 10 |
| 27 June 2017 | 410 | 70 |
| 3 July 2017 | 53 | 10 |
| 6 July 2017 | 43 | 13 |
| 14 July 2017 | 10 | 10 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 10 | 10 |
| 31 July 2017 | 10 | 17 |
| 8 Aug 2017 | 24 | 17 |
| 14 Aug 2017 | 57 | 10 |
| 22 Aug 2017 | 130 | 10 |
| 29 Aug 2017 | 10 | 10 |
| 4 Sept 2017 | 150 | 12 |
| 6 Sept 2017 | 130 | 19 |
| 12 Sept 2017 | 42 | 10 |
Ballywalter
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 15 | 10 |
| 6 June 2017 | 17 | 10 |
| 13 June 2017 | 2800 | 1200 |
| 19 June 2017 | 11 | 38 |
| 21 June 2017 | 1200 | 1500 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 36 | 14 |
| 7 July 2017 | 17 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 24 | 13 |
| 1 Aug 2017 | 15 | 10 |
| 7 Aug 2017 | 120 | 27 |
| 9 Aug 2017 | 36 | 10 |
| 15 Aug 2017 | 60 | 10 |
| 21 Aug 2017 | 1000 | 1000 |
| 23 Aug 2017 | 1400 | 290 |
| 30 Aug 2017 | 37 | 13 |
| 5 Sept 2017 | 80 | 70 |
| 11 Sept 2017 | 56 | 10 |
Brown's Bay
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 23 | 10 |
| 5 June 2017 | 730 | 360 |
| 7 June 2017 | 71 | 10 |
| 12 June 2017 | 450 | 25 |
| 14 June 2017 | 80 | 170 |
| 20 June 2017 | 100 | 19 |
| 27 June 2017 | 11 | 21 |
| 3 July 2017 | 15 | 10 |
| 6 July 2017 | 29 | 10 |
| 14 July 2017 | 47 | 12 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 60 | 10 |
| 31 July 2017 | 650 | 340 |
| 8 Aug 2017 | 4500 | 410 |
| 14 Aug 2017 | 87 | 22 |
| 22 Aug 2017 | 10 | 10 |
| 29 Aug 2017 | 80 | 17 |
| 4 Sept 2017 | 28 | 10 |
| 6 Sept 2017 | 70 | 10 |
| 12 Sept 2017 | 39 | 10 |
Carnlough
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 10 | 10 |
| 5 June 2017 | 1900 | 3200 |
| 7 June 2017 | 10 | 10 |
| 12 June 2017 | 120 | 80 |
| 14 June 2017 | 20 | 12 |
| 20 June 2017 | 14 | 10 |
| 27 June 2017 | 5700 | 1900 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 440 | 24 |
| 14 July 2017 | 20 | 10 |
| 18 July 2017 | 90 | 33 |
| 24 July 2017 | 110 | 25 |
| 31 July 2017 | 480 | 150 |
| 8 Aug 2017 | 50 | 17 |
| 14 Aug 2017 | 61 | 10 |
| 22 Aug 2017 | 820 | 37 |
| 29 Aug 2017 | 39 | 10 |
| 4 Sept 2017 | 42 | 20 |
| 6 Sept 2017 | 390 | 200 |
| 12 Sept 2017 | 80 | 10 |
Castlerock
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 190 | 56 |
| 13 June 2017 | 19 | 10 |
| 19 June 2017 | 60 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 18 | 10 |
| 5 July 2017 | 75 | 10 |
| 7 July 2017 | 60 | 16 |
| 17 July 2017 | 19 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 27 | 10 |
| 1 Aug 2017 | 50 | 10 |
| 7 Aug 2017 | 20 | 10 |
| 9 Aug 2017 | 73 | 10 |
| 15 Aug 2017 | 12 | 12 |
| 21 Aug 2017 | 23 | 10 |
| 30 Aug 2017 | 70 | 10 |
| 31 Aug 2017 | 27 | 10 |
| 5 Sept 2017 | 42 | 30 |
| 11 Sept 2017 | 670 | 90 |
Cloughey (candidate site)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 12 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 180 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 10 | 10 |
| 7 July 2017 | 10 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 10 | 10 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 47 | 10 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 10 | 10 |
| 21 Aug 2017 | 26 | 23 |
| 23 Aug 2017 | 900 | 570 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 15 | 17 |
| 11 Sept 2017 | 10 | 10 |
Cranfield (Cranfield Bay)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 10 | 10 |
| 5 June 2017 | 11 | 39 |
| 7 June 2017 | 10 | 10 |
| 12 June 2017 | 10 | 10 |
| 14 June 2017 | 14 | 10 |
| 20 June 2017 | 10 | 24 |
| 27 June 2017 | 25 | 15 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 10 | 10 |
| 14 July 2017 | 10 | 10 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 16 | 10 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 10 | 10 |
| 14 Aug 2017 | 40 | 49 |
| 22 Aug 2017 | 430 | 200 |
| 29 Aug 2017 | 10 | 10 |
| 4 Sept 2017 | 560 | 65 |
| 6 Sept 2017 | 10 | 10 |
| 12 Sept 2017 | 10 | 10 |
Crawfordsburn
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 16 | 10 |
| 6 June 2017 | 10 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 17 | 49 |
| 26 June 2017 | 95 | 17 |
| 5 July 2017 | 1000 | 120 |
| 7 July 2017 | 18 | 11 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 24 July 2017 | 19 | 52 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 190 | 10 |
| 21 Aug 2017 | 10 | 10 |
| 23 Aug 2017 | 20 | 10 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 12 | 10 |
| 11 Sept 2017 | 10 | 10 |
Groomsport
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 23 | 11 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 17 | 49 |
| 26 June 2017 | 95 | 17 |
| 5 July 2017 | 10 | 10 |
| 7 July 2017 | 78 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 53 | 10 |
| 25 July 2017 | 69 | 60 |
| 1 Aug 2017 | 12 | 17 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 900 | 61 |
| 15 Aug 2017 | 130 | 17 |
| 21 Aug 2017 | 26 | 21 |
| 23 Aug 2017 | 100 | 10 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 12 | 10 |
| 11 Sept 2017 | 40 | 26 |
Helen's Bay
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 10 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 120 | 200 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 26 | 19 |
| 7 July 2017 | 110 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 26 | 10 |
| 25 July 2017 | 18 | 53 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 49 | 20 |
| 15 Aug 2017 | 73 | 41 |
| 21 Aug 2017 | 10 | 10 |
| 23 Aug 2017 | 280 | 78 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 12 | 10 |
| 11 Sept 2017 | 10 | 10 |
Kilclief (candidate site)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 10 | 10 |
| 5 June 2017 | 10 | 10 |
| 7 June 2017 | 10 | 10 |
| 12 June 2017 | 10 | 10 |
| 14 June 2017 | 10 | 10 |
| 20 June 2017 | 10 | 10 |
| 27 June 2017 | 10 | 10 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 10 | 10 |
| 14 July 2017 | 22 | 10 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 10 | 10 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 10 | 10 |
| 14 Aug 2017 | 10 | 10 |
| 22 Aug 2017 | 10 | 10 |
| 29 Aug 2017 | 10 | 10 |
| 4 Sept 2017 | 10 | 10 |
| 6 Sept 2017 | 10 | 10 |
| 12 Sept 2017 | 10 | 10 |
Magilligan Benone
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 10 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 50 | 12 |
| 7 July 2017 | 10 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 21 | 10 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 84 | 10 |
| 15 Aug 2017 | 10 | 10 |
| 21 Aug 2017 | 14 | 10 |
| 23 Aug 2017 | 10 | 10 |
| 30 Aug 2017 | 35 | 10 |
| 5 Sept 2017 | 24 | 10 |
| 11 Sept 2017 | 40 | 13 |
Magilligan Downhill
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 22 | 28 |
| 13 June 2017 | 12 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 25 | 12 |
| 5 July 2017 | 1300 | 350 |
| 7 July 2017 | 23 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 24 | 10 |
| 25 July 2017 | 36 | 10 |
| 1 Aug 2017 | 53 | 29 |
| 7 Aug 2017 | 31 | 13 |
| 9 Aug 2017 | 76 | 10 |
| 15 Aug 2017 | 64 | 15 |
| 21 Aug 2017 | 41 | 10 |
| 30 Aug 2017 | 30 | 10 |
| 31 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 24 | 10 |
| 11 Sept 2017 | 640 | 110 |
Millisle
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 80 | 140 |
| 13 June 2017 | 29 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 10 | 14 |
| 5 July 2017 | 200 | 120 |
| 7 July 2017 | 10 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 70 | 16 |
| 25 July 2017 | 22 | 10 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 27 | 10 |
| 9 Aug 2017 | 180 | 31 |
| 15 Aug 2017 | 48 | 53 |
| 21 Aug 2017 | 140 | 46 |
| 23 Aug 2017 | 100 | 140 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 140 | 18 |
| 11 Sept 2017 | 45 | 32 |
Murlough (Co Down)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 16 | 10 |
| 5 June 2017 | 130 | 62 |
| 7 June 2017 | 10 | 10 |
| 12 June 2017 | 11 | 10 |
| 14 June 2017 | 10 | 10 |
| 20 June 2017 | 10 | 10 |
| 27 June 2017 | 260 | 130 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 10 | 10 |
| 14 July 2017 | 10 | 10 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 60 | 10 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 10 | 10 |
| 14 Aug 2017 | 51 | 10 |
| 22 Aug 2017 | 60 | 16 |
| 29 Aug 2017 | 10 | 10 |
| 4 Sept 2017 | 410 | 60 |
| 6 Sept 2017 | 25 | 10 |
| 12 Sept 2017 | 10 | 10 |
Newcastle
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 110 | 65 |
| 5 June 2017 | 3600 | 500 |
| 7 June 2017 | 63 | 10 |
| 12 June 2017 | 30 | 10 |
| 14 June 2017 | 10 | 18 |
| 20 June 2017 | 10 | 12 |
| 27 June 2017 | 260 | 130 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 200 | 36 |
| 14 July 2017 | 10 | 10 |
| 18 July 2017 | 12 | 10 |
| 24 July 2017 | 72 | 10 |
| 31 July 2017 | 80 | 36 |
| 8 Aug 2017 | 47 | 10 |
| 14 Aug 2017 | 640 | 65 |
| 22 Aug 2017 | 70 | 53 |
| 29 Aug 2017 | 10 | 10 |
| 4 Sept 2017 | 210 | 64 |
| 6 Sept 2017 | 30 | 11 |
| 12 Sept 2017 | 53 | 40 |
Portballintrae Salmon Rock
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 40 | 10 |
| 6 June 2017 | 2200 | 420 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2016 | 10 | 10 |
| 5 July 2017 | 28 | 10 |
| 7 July 2017 | 27 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 10 | 10 |
| 1 Aug 2017 | 10 | 10 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 45 | 10 |
| 21 Aug 2017 | 10 | 14 |
| 30 Aug 2017 | 32 | 10 |
| 31 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 14 | 12 |
| 11 Sept 2017 | 320 | 190 |
Portrush Curran (East Strand)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 12 | 10 |
| 6 June 2017 | 13 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 73 | 10 |
| 26 June 2017 | 2000 | 200 |
| 5 July 2017 | 31 | 28 |
| 7 July 2017 | 79 | 18 |
| 17 July 2017 | 140 | 26 |
| 19 July 2017 | 75 | 23 |
| 25 July 2017 | 64 | 53 |
| 1 Aug 2017 | 87 | 49 |
| 7 Aug 2017 | 10 | 11 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 45 | 43 |
| 21 Aug 2017 | 120 | 48 |
| 30 Aug 2017 | 10000 | 6300 |
| 31 Aug 2017 | 55 | 23 |
| 5 Sept 2017 | 150 | 18 |
| 11 Sept 2017 | 110 | 100 |
Portrush Mill (West Strand)
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 10 | 10 |
| 13 June 2017 | 10 | 10 |
| 19 June 2017 | 10 | 10 |
| 21 June 2017 | 20 | 10 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 10 | 10 |
| 7 July 2017 | 17 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 10 |
| 25 July 2017 | 10 | 10 |
| 1 Aug 2017 | 130 | 67 |
| 7 Aug 2017 | 12 | 10 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 10 | 10 |
| 21 Aug 2017 | 10 | 10 |
| 23 Aug 2017 | 540 | 110 |
| 30 Aug 2017 | 26 | 10 |
| 5 Sept 2017 | 10 | 10 |
| 11 Sept 2017 | 48 | 10 |
Portrush Whiterocks
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 15 | 10 |
| 6 June 2017 | 20 | 10 |
| 13 June 2017 | 10 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 10 | 10 |
| 27 June 2017 | 10 | 10 |
| 5 July 2017 | 10 | 10 |
| 7 July 2017 | 11 | 10 |
| 17 July 2017 | 10 | 10 |
| 19 July 2017 | 10 | 13 |
| 25 July 2017 | 10 | 10 |
| 1 Aug 2017 | 12 | 10 |
| 7 Aug 2017 | 10 | 11 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 10 | 10 |
| 21 Aug 2017 | 19 | 10 |
| 23 Aug 2017 | 150 | 26 |
| 30 Aug 2017 | 10 | 10 |
| 5 Sept 2017 | 15 | 10 |
| 11 Sept 2017 | 340 | 10 |
Portstewart
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 31 May 2017 | 10 | 10 |
| 6 June 2017 | 25 | 10 |
| 13 June 2017 | 14 | 10 |
| 19 June 2017 | 80 | 10 |
| 21 June 2017 | 10 | 10 |
| 26 June 2017 | 10 | 10 |
| 5 July 2017 | 100 | 10 |
| 7 July 2017 | 160 | 15 |
| 17 July 2017 | 10 | 90 |
| 19 July 2017 | 20 | 10 |
| 25 July 2017 | 18 | 10 |
| 1 Aug 2017 | 150 | 34 |
| 7 Aug 2017 | 10 | 10 |
| 9 Aug 2017 | 10 | 10 |
| 15 Aug 2017 | 10 | 10 |
| 21 Aug 2017 | 10 | 10 |
| 23 Aug 2017 | 36 | 31 |
| 30 Aug 2017 | 20 | 10 |
| 5 Sept 2017 | 17 | 10 |
| 11 Sept 2017 | 780 | 100 |
Tyrella
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 15 | 10 |
| 5 June 2017 | 65 | 10 |
| 7 June 2017 | 80 | 10 |
| 12 June 2017 | 29 | 10 |
| 14 June 2017 | 98 | 10 |
| 20 June 2017 | 10 | 10 |
| 27 June 2017 | 10 | 10 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 12 | 10 |
| 14 July 2017 | 12 | 10 |
| 18 July 2017 | 10 | 10 |
| 24 July 2017 | 10 | 10 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 10 | 10 |
| 14 Aug 2017 | 37 | 10 |
| 22 Aug 2017 | 70 | 28 |
| 29 Aug 2017 | 19 | 10 |
| 4 Sept 2017 | 80 | 84 |
| 6 Sept 2017 | 29 | 10 |
| 12 Sept 2017 | 10 | 10 |
Waterfoot
| Date | Escherichia Coli (cfu/100ml) | Intestinal Enterococci (cfu/100ml) |
|---|
| 30 May 2017 | 50 | 10 |
| 5 June 2017 | 5500 | 1500 |
| 7 June 2017 | 12 | 10 |
| 12 June 2017 | 45 | 23 |
| 14 June 2017 | 23 | 20 |
| 20 June 2017 | 250 | 67 |
| 27 June 2017 | 1200 | 240 |
| 3 July 2017 | 10 | 10 |
| 6 July 2017 | 50 | 10 |
| 14 July 2017 | 10 | 10 |
| 18 July 2017 | 80 | 57 |
| 24 July 2017 | 10 | 10 |
| 31 July 2017 | 10 | 10 |
| 8 Aug 2017 | 150 | 57 |
| 14 Aug 2017 | 12 | 10 |
| 22 Aug 2017 | 250 | 130 |
| 29 Aug 2017 | 18 | 16 |
| 4 Sept 2017 | 18 | 12 |
| 6 Sept 2017 | 10 | 10 |
| 12 Sept 2017 | 420 | 150 |