Water Supply Systems
System | Water origin | Areas served | Water treatment |
|---|---|---|---|
| Awatere (including Seddon) | Black Birch Stream | Lower Awatere Valley including Seddon | MIOX plant generating and injecting chlorine |
| Blenheim | Wells | Blenheim township and Marlborough Ridge | UV disinfection followed by pH correction |
| Havelock | Well | Havelock township | Chlorination |
| Picton | Wells | Picton and Waikawa | Chlorination and pH correction |
| Picton | Open catchment (Essons Valley) | Picton and Waikawa | Filtration, chlorination and pH correction |
| Renwick | Wells | Renwick township | Chlorination |
| Riverlands | Well | Riverlands Industrial Estate | None |
| Wairau Valley | Well | Wairau township | Chlorination |