Estimated and consented OWMS in Canterbury (as at 2025) (0)
| estimated OWMS |
| consented OWMS |
Estimated OWMS density (1)
Estimated OWMS by district (TA) (2)
| less than 500 |
| 501 to 1000 |
| 1001 to 2500 |
| 2501 to 5000 |
| 5001 to 10 000 |
Estimated OWMS by locality (3)
| less than 50 |
| 51 - 100 |
| 101- 200 |
| 201 - 350 |
| 351 - 750 |
| 751 - 1360 |
Estimated OWMS nitrogen load discharged in drinking water protection zones (4)
| 5 - 50 kgN/yr |
| 50 - 100 kgN/yr |
| 100 - 250 kgN/yr |
| 250 - 500 kgN/yr |
| 500 - 650 kg N/yr |
Estimated OWMS phosphorus load discharged in drinking water protection zones (5)
| 1.5 - 5 kgP/yr |
| 5 - 20 kgP/yr |
| 20 - 40 kgP/yr |
| 40 - 60 kgP/yr |
| 60 - 105 kgP/yr |
Estimated OWMS nitrogen load discharged by catchment (6)
|
| less than 1000 |
|
| 1001 to 5000 |
|
| 5001 to 10 000 |
|
| 10 001 to 15 000 |
|
| 15 001 to 90 000 |
Estimated OWMS phosphorus load discharged by catchment (7)
|
| less than 150 |
|
| 150 to 500 |
|
| 501 to 1000 |
|
| 1001 to 2500 |
|
| 2501 to 15 000 |
|
