Water Supply

Water Supply Schemes
Tumut Shire Council manages six water supply schemes serving Adelong, Batlow, Brungle, Talbingo, Tumut, and Cloverdale – Morgans Reserve areas. Council is responsible for the installation, maintenance and operation of the entire water supply infrastructure including treatment plants, reticulation networks, reservoirs, pump stations, mains and associated hydrants and valves.

This section describes details of these water supply schemes and the plans for their future development. This information is sourced from Tumut Shire Council’s Strategic Business Plan for Water Supply.

Source Council supplies filtered and chlorinated water to the township of Adelong, which is situated 20 km west of Tumut.  Water is drawn from an intake structure situated on the Adelong Creek flowing along the southern side of the township. The quality of the creek water is generally good, although the water can be quite turbid at times. Water supply from Adelong Creek is currently considered insecure due to upstream irrigation allocations, and more recently, variable seasonal conditions. The average annual rainfall for the catchment above Adelong is about 1200 mm. During the recent drought period Council supplemented the Adelong creek supply by the installation and operation of three bores.

Treatment Construction of a water treatment plant was completed in 1996 at an overall cost of approximately $1,200,000.  Water treatment is by lagoon sedimentation with automatic valveless filtration followed by chlorination. Design peak daily demand was 2.1 ML per day in 1995 and the filtration plant has an ultimate design capacity of 2.7 ML/ day. A telemetry monitoring, control, and alarm system has been installed and integrated with the Tumut telemetry system.

Storage Constructed in 1984, the filtered water pumping station has the capacity to pump 2.1 ML per day.  Treated water is pumped to a 1.5 ML service reservoir and then fed by gravity to the town. The reservoir is in good condition and only routine maintenance is required. The water supplied to the town complies with the recognised health guidelines.

Distribution and Reticulation The trunk distribution mains are made of DICL, reticulation mains are mainly constructed of PVC. Service connections are of copper and water meters are of the type that are attached with backflow preventing devices. This ensures that meter recordings are accurate and the quality of water supply is protected.

Source Batlow is located 40 km south of Tumut and is a centre of primary and secondary industries. The source of supply to Batlow is the 120 ML Kunama storage dam on the Little Gilmore Creek. Raw water from this dam gravitates to an open 4.5ML capacity Faulkner’s service reservoir situated about 1 km south of Batlow via a 2.5 Km long 250 mm AC main, from where it is pumped to the adjacent filtration plant. A separate 250mm AC gravity main from the reservoir, supplied chlorinated water to the former Mountain Maid cannery site.

Security of water supply to Batlow is currently a concern and options to ensure security are being explored.

Treatment In 1998, Council completed upgrading the existing unfiltered chlorinated supply to the town with installation of a new treatment plant, reservoir and reticulation mains. The new immersed membrane ultra-filtration plant has been designed to supply a peak daily demand of 2.5 ML/day. The old chlorination plant was replaced with a new gas chlorination system in 1997. The water supply complies with recognised health guidelines.

Storage The low level zone, and feed to the high level pump station, is supplied by 1 x 1.5 ML capacity concrete roofed storage that was built in 1997.  The high level zone is supplied via a pump station and rising main to 2 x concrete roofed storages, one 0.23 ML built in 1960, and one 0.6 ML built in 1997. The storage capacities of reservoirs are adequate.

Distribution and Reticulation Treated water gravitates to the town via a 2.5 km long 250 mm AC gravity trunk main and is generally in good condition. The town reticulation system consists of a high and low level network. The high level network is served by a booster pump station and 0.83 ML service reservoirs. Reticulation system is generally in good condition, however replacement of some sections of old AC and cast iron mains has been programmed.

Source The township of Talbingo was primarily built as a service village for the later part of the construction of the Snowy Mountains Hydro Electricity Scheme. Tumut Shire Council assumed control of the Talbingo township in 1995. Raw water is sourced from the head of Jounama Creek.  The headworks consist of a small, low, loose rock wall dam with 150mm diameter screened offtake. From the headworks, water is gravity fed via a 150mm diameter and 2.52 km long galvanised steel ‘victualic’ mechanical jointed pipeline to the creek gauging station. From there on, through a 4 km long 150mm class C ‘Fibrolite’ pipe to the filtration plant. The water supply is considered secure.  During the recent drought flows in the Jounama creek were substantially diminished and Council constructed emergency pumping works from Jounama pondage.

Treatment The majority of the existing water infrastructure was constructed in the mid 1960s. Prior to the hand-over the Snowy Mountains Authority constructed a new water filtration plant, and wastewater treatment plant. Raw water from Jounama Creek is treated in the 2.1 ML/d water filtration plant. The filtration plant can be operated in two modes, being:

Gravity supply from Jounama Creek – capacity 820 kL/day

Boosted (pumped) supply from Jounama Creek – capacity 2.1 ML/day

The plant is currently operated in the gravity mode, and it is anticipated that boosted supply will not be required until after 2018.

The water is chlorinated after filtration. With current peak day demand at 1.2 ML/day, only 60% of the capacity of the filtration plant is utilised. The water supplied to the town complies with recognised health guidelines.

Distribution and Reticulation The town reticulation system consists of high and low level networks constructed of 150 and 100mm diameter Class C ‘Fibrolite’ pipe.  The condition of the system is good and no major rehabilitation work is planned. The high level network is served by a 1.5 ML reservoir and the low level zone by a 0.5 ML reservoir.

All service connections are of copper construction, and new water meters were installed in 1994.  Backflow prevention devices are being retrofitted to each service by the Council.

Source The town of Tumut has a dual water supply providing potable (filtered and chlorinated) and untreated water through separate reticulation systems.

The non-potable (untreated) supply is pumped from the Tumut River to a 0.9 ML reservoir.  This water is supplied for irrigation purposes and is delivered to a limited number of customers including the TAFE campus and various sporting areas.

Potable (treated) water is pumped from a side-intake well on the Tumut River to the Fitzroy Street water filtration plant.

Treatment The water treatment plant is a conventional sedimentation/filtration type upgraded to its present rate in 1985; it has a design capacity of 16 ML/day, however the plant’s ability to produce this amount has not been proven.  Present peak demand is about 10 ML/day. It is expected that augmentation of the plant may be required around 2011 and 2017. The plant is fitted with a telemetry system that monitors and controls the Tumut plant and pump station operations. The potable water supplied to the town complies with the recognised health guidelines.

Storage Treated water is distributed to three supply zones via three concrete roofed service reservoirs. The reservoirs are located at Godfrey Street (4.7 ML), Lambie Street (4.9 ML) and near the Golf Course (1.7 ML). The reservoirs supply to three pressure zones. The total potable water reservoir capacity is currently 11.3 ML. It is proposed to augment reservoir capacity by the construction of a further 5 ML (mid level) ‘Southern’ reservoir around 2008 – 2009.

Distribution and Reticulation The reticulation system is generally in good condition. Major 5-yearly mains replacement program has been in place since 2002.   A water meter replacement program is in place so as to maintain the accuracy of meter readings, and to simultaneously provide integral backflow prevention devices.

Brungle is a small village 20 kilometres to the north of Tumut. Current population of the village is 100 with a peak daily demand of 0.15 ML/day. Water supply for the village is sourced from Nimbo Creek, a branch of Tumut River. Future water supplies are considered secure.

The water supply was recently upgraded with the provision of a membrane microfiltration plant with a peak day capacity of 0.25 ML/day. The supply meets the recognised health guidelines. Treated water is pumped to a new concrete roofed distribution reservoir having a storage capacity of 0.23 ML. The supply then gravitates through the reticulation system to consumers. The service connections are of polyethylene or copper and are in good condition.

The pumping station control system is integrated with the reservoir levels, and both are connected to the Tumut telemetry system.

A water meter replacement program is in place so as to maintain the accuracy of meter readings, and to simultaneously to provide integral backflow prevention devices.

Council assumed control of the Cloverdale supply in 1986. Cloverdale is a small rural residential subdivision with a high 5% expected population growth for the next 10 years. Current population of Cloverdale is 250 of which only 110 are serviced contributing a peak daily demand of 0.18 ML/day.

The original raw water supply scheme pumped water from the Tumut River to a series of four small distribution reservoirs (total capacity 0.18 ML). This supply has been recently upgraded to potable water supply by way of linking the system to the Tumut town scheme via 3.2 kms of gravity pipeline. Current peak day capacity of the new link section is 0.8 ML/day and this has the capacity to supply to currently un-serviced population and the future growth. Substantial augmentation of the original Cloverdale water supply will be required to service the predicted development.

A water meter replacement program is in place so as to maintain the accuracy of meter readings, and to simultaneously to provide integral backflow prevention devices.

Levels of Service
The Levels of Service:

  • Define explicitly the standards required from the water supply system;
  • Are an expansion of the corporate objective listed above; and
  • Will largely shape Council's detailed planning.

In providing water supply services to the community Council must balance the standard of service desired with the cost of providing the service.  The Levels of Service are designed by Council to represent the best level of service possible for a cost that the community can afford and is willing to pay.  When these are in place all subsequent planning is done in relation to achieving these goals.

The Levels of Service define the deliverables and are the driving force for the water supply scheme’s management and development.  Achieving the required Levels of Service is a PRIMARY GOAL.

The current Levels of Service are listed in the summary of this document.  Council and its customers are satisfied with the Levels of Service provided, so the majority of them have remained unchanged in the revised targets.  The target Levels of Service, which Council is aiming to achieve, are on the following page.

It should be noted that the target Levels of Service are not intended as a formal customer contract.  Rather Council’s responsibility is to achieve these levels and then to achieve them more cost effectively through a process of continual improvement.