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Water

According to the National Policy Statement for Freshwater Management (2020), if any single E. coli level at a monitored site is above 260 E. coli per 100 mL, the regional council must (unless the council is satisfied that the elevated result is temporary or the cause is being addressed):

(a) increase sampling frequency to daily, where practicable; and
(b) take all practicable steps to identify potential causes of microbial contamination.

Additionally, if any single E. coli level is above 540 E. coli per 100 mL, the regional council must, as soon as practicable, take all practicable steps to notify the public and keep the public informed that the site is unsuitable for primary contact, until further sampling shows a result of 540 E. coli per 100 mL or less

Bay of Plenty Regional Council has set their safe swimming limit for Freshwater at 550 E. coli CFU/100 ml of water based on the Microbiological Water Quality Guidelines (2003). Our data has been coloured to reflect their practice.

Safe level to swim

Current level



Date
(oldest to
newest)

E. coli (CFU)

Unsafe to swim 
(> 550 CFU)

19 Oct 21

 17000

550

26 Oct 21

 290

550

2 Nov 21

 500

550

17 Nov 21

 170

550

30 Nov 21

 900

550

13 Jan 22

 180

550

28 Jan 22

 4800

550

4 Feb 22

 2700

550

11 Feb 22

 3280

550

19 Feb 22

 754

550

25 Feb 22

 450

550

4 Mar 22

 480

550

11 Mar 22

 247

550

18 Mar 22

 1236

550

25 Mar 22

 2540

550

1 Apr 22

 384

550

8 Apr 22

 478

550

15 Apr 22

 631

550

22 Apr 22

 876

550

29 Apr 22

 475

550

6 May 22

 380

550

13 May 22

 275

550

19 May 22

 2780

550

26 May 22

 560

550

2 Jun 22

 242

550

9 Jun 22

 1572

550

16 Jun 22

 863

550

23 Jun 22

 512

550

30 Jun 22

 2485

550

7 Jul 22

 5500

550

14 Jul 22

 4530

550

28 Aug 22

6000

550

4 Aug 22

2500

550

11 Aug 22

3700

550

18 Aug 22

4200

550

24 Aug 22

6500

550

1 Sept 22

2250

550

8 Sept 22

5210

550

22 Sept 22

2150

550

29 Sept 22

3470

550

6 Oct 22

2265

550

13 Oct 22

3920

550

20 Oct 22

3600

550

27 Oct 22

3300

550

6 Nov 22

4580

550

10 Nov 22

1875

550

17 Nov 22

2350

550

25 Nov 22

6000

550

30 Nov 22

5590

550

8 Dec 22

3800

550

15 Dec 22

1720

550

22 Dec 22

3470

550

29 Dec 22

1710

550

5 Jan 23

2320

550

19 Jan 23

2170

550

1 Feb 23

2200

550

15 Feb 23

4740

550

1 Mar 23

3710

550

15 Mar 23

2100

550

29 Mar 23

1830

550

 

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