Freshwater E. coli MAC Grades
Microbiological water quality grades are reported as long term Microbiological Assessment Category (MAC) grades in accordance with The Ministry for the Environment & Ministry of Health 2003 Microbiological water quality guidelines for marine and freshwater recreational areas.
Map
Scroll/zoom on the map to find areas of interest. Hover on a coloured site to see more information. Use the toggle in the top right to compare all weather vs dry weather. Arrows next to the MAC grade in the label/popup indicate change from last season.
Table
Use the arrows ( ↓↑ ) next to the table headers to sort the data. Arrows next to the MAC grade indicate change from last season.
Summary of action guideline breaches for E. coli
Use the tabs below to see action guideline breaches for E. coli (>550 cfu/100mL) from routine surveillance monitoring.
Overall shows the number of sites that breached guidelines broken down by those sites total number of breaches in the monitoring season.
Separate Whaitua tables list preceding rainfall (mm) and the number of follow up samples required before compliance with the surveillance guideline was met for each breach.
Overall
| Total breaches per site | Kāpiti | Te Whanganui-a-Tara | Wairarapa | Total no. sites | % of sites |
|---|---|---|---|---|---|
| 0 | 3 | 0 | 7 | 10 | 58.8 |
| 1 | 0 | 2 | 0 | 2 | 11.8 |
| 2 | 0 | 4 | 0 | 4 | 23.5 |
| 3 | 0 | 1 | 0 | 1 | 5.9 |
| Total monitored sites | 3 | 7 | 7 | 17 |
Kāpiti
No breaches this monitoring year
Te Whanganui-a-Tara
Wairarapa
No breaches this monitoring year
