Shellfish gathering water quality monitoring
Summary of faecal coliform counts from routine monitoring benchmarked against the recreational shellfish-gathering water quality criteria. Both criteria must be exceeded (values in red) to fail guidelines.
- median faecal coliform content of samples taken over a shellfish-gathering season shall not exceed a Most Probable Number (MPN) of 14 cfu/100 mL, and
- not more than 10% of samples should exceed an MPN of 43 cfu/100 mL (using a five-tube decimal dilution test)
See water quality criteria (MfE/MoH 2003) for more information.
Scroll/zoom on the map to find areas of interest. Hover on a coloured site to see more information.
| Whaitua | Site | MfE/MoH guidelines | Median (cfu/100mL) | Maximum (cfu/100mL) | No. (and %) of results >43 cfu/100mL | Total no. of samples |
|---|---|---|---|---|---|---|
| Kāpiti | Ōtaki Beach at Surf Club | Exceeded | 27 | 905 | 2 (33%) | 6 |
| Kāpiti | Peka Peka Beach at Road End | Exceeded | 15 | 460 | 1 (14%) | 7 |
| Kāpiti | Raumati Beach at Tainui Street | Exceeded | 30 | 3,100 | 2 (33%) | 6 |
| Te Awarua-o-Porirua | Porirua Harbour at Rowing Club | Exceeded | 52 | 1,360 | 4 (57%) | 7 |
| Te Whanganui-a-Tara | Mahanga Bay | Within | 2 | 320 | 2 (12%) | 17 |
| Te Whanganui-a-Tara | Shark Bay | Within | 4 | 230 | 2 (12%) | 17 |
| Te Whanganui-a-Tara | Sorrento Bay | Within | 6 | 320 | 4 (22%) | 18 |
