Zone 1 - SW (2)
| Eltham_WTP |
| Hawera_WTP |
| Inaha_WTP1 |
| Inaha_WTP2 |
| Inaha_WTP3 |
| Inglewood-1 |
| Inglewood-2 |
| New Plymouth 1 Lake |
| New Plymouth 1 River |
| Oakura |
| Okato |
| Opunake |
| Stratford_WTP1 |
| Stratford_WTP2 |
| Waimate_West_WTP_1 |
| Waimate_West_WTP_2 |
| Waimate_West_WTP_3 |
Zone 2 - SW (3)
|
| Eltham_WTP |
|
| Hawera_WTP |
|
| Inaha_WTP1 |
|
| Inaha_WTP2 |
|
| Inaha_WTP3 |
|
| Inglewood-1 |
|
| Inglewood-2 |
|
| New Plymouth 1 Lake |
|
| New Plymouth 1 River |
|
| Oakura |
|
| Okato |
|
| Opunake |
|
| Stratford_WTP1 |
|
| Stratford_WTP2 |
|
| Waimate_West_WTP_1 |
|
| Waimate_West_WTP_2 |
|
| Waimate_West_WTP_3 |
Zone 3 - SW (4)
|
| Eltham_WTP |
|
| Hawera_WTP |
|
| Inaha_WTP1 |
|
| Inaha_WTP2 |
|
| Inaha_WTP3 |
|
| Inglewood-1 |
|
| Inglewood-2 |
|
| New Plymouth 1 Lake |
|
| New Plymouth 1 River |
|
| Oakura |
|
| Okato |
|
| Opunake |
|
| Stratford_WTP1 |
|
| Stratford_WTP2 |
|
| Waimate_West_WTP_1 |
|
| Waimate_West_WTP_2 |
|
| Waimate_West_WTP_3 |
Zone 1 - GW (6)
| Hawera |
| Oakura |
| Patea |
| Waimate |
| Waverley |
Zone 2 - GW (7)
|
| Hawera |
|
| Oakura |
|
| Patea |
|
| Waimate |
|
| Waverley |
Zone 3 - GW (8)
|
| Hawera |
|
| Oakura |
|
| Patea |
|
| Waimate |
|
| Waverley |
|