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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 216000550
26 Oct 21300550
2 Nov 21120550

17 Nov 21210550

30 Nov 21500550

16 Dec 2116000550
13 Jan 22
270550

28 Jan 227500550

4 Feb 2216000550

11 Feb 22762550

19 Feb 22650550

25 Feb 221240550
4 Mar 221420550

11 Mar 22630550

18 Mar 22870550

25 Mar 226870550

1 Apr 22879550

8 Apr 222300550

15 Apr 225000550

22 Apr 2212000550

29 Apr 222650550

6 May 22780550

13 May 22533550

19 May 224500550
26 May 222775550
2 Jun 223100550
9 Jun 2210905550
16 Jun 226000550
23 Jun 225208550
30 Jun 223630550
7 Jul 225980550
14 Jul 222561550
28 Jul 229350550
4 Aug 223900550