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GWMWater currently operates 25 sewerage systems in 24 separate towns, two being in Kaniva. All are lagoon systems with the exception of Ararat, Dimboola, Horsham, Nhill, St Arnaud, Stawell and Warracknabeal, which have mechanical components to them.
We use water everyday at home and in industry. In a sewered town, once the water is used, we dispose of it through a reticulated sewerage system that treats the water at a wastewater treatment plant.
Homes in unsewered towns use a septic tank system that treats the wastewater on site. Your local council regulates septic tanks.
New sewerage schemes will be constructed in the towns of Great Western, Lake Bolac and Rupanyup as part of GWMWater's 2008-13 capital works program.
You may also be interested in Trade waste
Summary of treatment plants
| Towns | | Summary of the Treatment Plant |
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| Ararat |
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Primary Sedimentation Tank, 2 Trickling Filters, Aerated Facultative Lagoon, Primary Maturation Lagoon, Secondary Maturation lagoon, 3 Winter Storages, Flood Irrigation |
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| Birchip |
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Facultative Lagoon, Maturation Lagoon |
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| Charlton |
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Facultative Lagoon, Maturation Lagoon, Winter Storage |
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| Dimboola |
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Clarifier, Trickling Filter, Humus Tank, Winter Storage, Sludge Digester, Sludge Lagoons |
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| Donald |
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Facultative Lagoon, Maturation Lagoon |
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| Edenhope |
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2 Facultative Lagoons, Winter Storage, Evaporation Lagoon |
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| Halls Gap |
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3 Treatment Lagoons, Winter Storage, Reuse Pond |
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| Hopetoun |
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2 Facultative Lagoons, Winter Storage |
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| Horsham |
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Oxidation Ditch, 2 clarifiers, 2 Maturations Lagoons, Winter Storage, Sludge Lagoons, Reuse Pond |
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| Jeparit |
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2 Facultative Lagoons, 2 Evaporative Lagoons |
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| Kaniva |
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North: 2 Anaerobic Lagoons, Facultative Lagoon, 2 Evaporative Lagoons
South: 2 Anaerobic Lagoons, 2 Facultative Lagoons, 3 Evaporative Lagoons |
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| Minyip |
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2 Facultative Lagoons, Winter Storage |
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| Murtoa |
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Facultative Lagoon, 3 Maturation Lagoons, Winter Storage, Tailwater Pond |
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| Natimuk |
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3 Facultative Lagoons, 1 Evaporation Lagoon |
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| Nhill |
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Winter Storage Lagoon, 2 Faculative Lagoons, 2 Maturation Lagoons |
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| Ouyen |
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2 Facultative Lagoons, Winter Storage |
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| Rainbow |
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2 Facultative Lagoons, Winter Storage |
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| Sea Lake |
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2 Facultative lagoons, Winter Storage |
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| Serviceton |
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2 Treatment Lagoons, Evaporation Lagoon |
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| St Arnaud |
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Grit Chamber, Imhoff Tank, Sludge Drying Beds, 2 Trickling Filters, Humus Tank, 3 Maturation Lagoons, Winter Storage |
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| Stawell |
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Grit Chamber, Clarifier, Sludge Digester, Sludge Drying Beds, 2 Trickling Filters, Humus Lagoons, maturation Lagoon, Operational Lagoon, Winter Storage, Reuse Pond |
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| Warracknabeal |
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Grit Chamber, Clarifier, 2 Trickling Filters, 2 Sludge Digester, Sludge Lagoons, Sludge Drying Beds, Maturation Lagoon, Tailwater Pond |
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| Willaura |
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Facultative Lagoon, Maturation Lagoon |
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| Wycheproof |
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2 Facultative Lagoons, Tailwater Pond |
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