Hunter Water ensures we meet the required drinking water guidelines by following a careful treatment process at our water treatment plants.
Water treatment plants are also known as water filtration plants. Our plants are located at:
Grahamstown Water Treatment Plant
Grahamstown Water Treatment Plant can treat water from Grahamstown Dam and or Tomago Sandbeds. The plant has a peak supply capacity of 257 megalitres per day and is Hunter Water's largest water treatment plant.
Grahamstown Water Treatment plant uses conventional treatment, and includes the following processes:
- coagulation / flocculation
- sedimentation
- filtration
- pH correction
- disinfection
- fluoridation
Dungog Water Treatment Plant
Dungog Water Treatment Plant treats water from Chichester Dam and has a peak supply capacity of 90 megalitres per day.
The treatment plant uses direct filtration, and includes the following processes:
- coagulation / flocculation
- contact filtration
- pH correction
- disinfection
- fluoridation
Lemon Tree Passage Water Treatment Plant
Lemon Tree Passage Water Treatment Plant treats water from the North-Eastern end of the Tomago sandbeds and provides a peak supply capacity of 5 megalitres per day.
The treatment plant uses two-stage filtration, and includes the following processes:
- aeration
- coagulation / flocculation
- two stage filtration
- pH correction
- disinfection
- fluoridation
Anna Bay Water Treatment Plant
Anna Bay Water Treatment Plant treats water from the Anna Bay sandbeds and provides a peak supply capacity of 12 megalitres per day.
Anna Bay Water Treatment Plant includes the following processes:
- aeration
- pH correction
- disinfection
- fluoridation
Nelson Bay Water Treatment Plant
Nelson Bay Water Treatment Plant treats water from the Anna Bay sandbeds and provides a peak supply capacity of 12 megalitres per day.
Nelson Bay Water Treatment Plant includes the following processes:
- aeration
- pH correction
- disinfection
- fluoridation
Gresford Water Treatment Plant
Gresford Water Treatment Plant can treat water from the Allyn or Paterson Rivers. The plant has a peak supply capacity of 0.6 megalitres per day.
Gresford Water Treatment Plant includes the following processes:
- microfiltration
- disinfection
