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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  200 550
26 Oct 21  140 550


2 Nov 21  320 550

17 Nov 21  220 550

30 Nov 21  800 550

16 Dec 21  8000 550
13 Jan 22
 250 550

28 Jan 22  210 550

4 Feb 22  398 550

11 Feb 22  540 550

19 Feb 22  380 550

25 Feb 22  320 550
4 Mar 22  250 550

11 Mar 22  542 550

18 Mar 22  430 550

25 Mar 22  733 550

1 Apr 22  284 550

8 Apr 22  548 550

15 Apr 22  820 550

22 Apr 22  10866 550

29 Apr 22  380 550

6 May 22  393 550

13 May 22  240 550

19 May 22  1248 550
26 May 22  320 550
2 Jun 22  517 550
9 Jun 22  1031 550
16 Jun 22  502 550
23 Jun 22  315 550
30 Jun 22  1322 550
7 Jun 22  3178 550
14 Jun 22 8925 550
28 Jun 22  9900 550
4 Aug 22 8720 550
11 Aug 22 1700 550
18 Aug 22 2150 550
24 Aug 22 6000 550
1 Sept 22 830 550
8 Sept 22 4820 550
22 Sept 22 1220 550
29 Sept 22 2300 550
6 Oct 22 690 550
13 Oct 22 1200 550
20 Oct 22 860 550
27 Oct 22 1820 550
6 Nov 22 1430 550
10 Nov 22 2400 550
17 Nov 22 920 550
25 Nov 22 8900 550