Regional Infrastructure

Water

All towns in the Gascoyne region use groundwater for domestic, commercial and horticultural purposes. There is no source of surface water available. Groundwater varies greatly in quality and quantity across the Region. The Water Corporation operates and maintains water supplies to all towns in the Gascoyne Region
Carnarvon obtains water from groundwater aquifers in and around the Gascoyne River which flows only intermittently. Treatment prior to consumption is simple chlorination. No filtration or other pre-treatment is necessary as the water is of very high quality in its raw state. Average water use is 11,000 Mega litres per annum.
Exmouth obtains water from a lens of fresh water overlaying highly saline water beneath Cape Range. Pre-treatment of water includes fluoridation and chlorination. The water is hard and high in calcium.

Coral Bay and Denham have no suitable fresh water source and rely on artesian wells to deliver sufficient volume. Denham has a dual water distribution system whereby consumers are provided with a quota of desalinated water for internal domestic use and a saline supply for toilets and external garden use. Coral Bay provides desalinated water to all consumers for both domestic internal and external use.

Gascoyne Junction takes its water from the Gascoyne River aquifers in the near vicinity of the town. High salinity levels require the water to be desalinated by means of reverse osmosis before being chlorinated and distributed to consumers.

Energy

All towns throughout the Gascoyne generate their own electricity through diesel; gas; or a combination of diesel and gas generation plant; solar; and wind power. Horizon Power is the supply authority for the region.

Carnarvon is served by the new Mungallah Power Station which uses both diesel and gas fuelled generators. The 18 MW power station has a firm capacity of 13.2 MW. The station became fully operational and began supplying power to Carnarvon residents in July 2014. The Station has been designed to ensure extra generation capacity can be installed, dependent on the town’s growth, and subject to ongoing studies, may be capable of incorporating additional renewable energy sources in the future.

Exmouth is serviced by a new gas fired power station which generates a firm capacity of 5.9 MW. Gas is trucked in from the Dampier to Perth gas line via Burkett Road. Three small wind turbines (20KW each) augment power to the town.

Coral Bay has a new power station comprising seven low-load diesel engines generating a firm capacity of 1.5 MW. Three 275 KW wind turbines augment supplies by up to 45%.
Gascoyne Junction is serviced by a diesel generating station owned and operated by Energy Generation Pty Ltd. Horizon Power maintains the distribution to consumers. The firm capacity generated at the station is 243 KW.

The system in Denham comprises 3 Enercon E-30 wind turbines (total capacity 690 kW), 2 single low load diesels (250 kW), four conventional diesel engines (1,720 kW total), a Dynamic Grid Interface (100 kW) and the power station control system. The total firm capacity generated is 1.4 MW. This was the first installation of Low Load Diesel generator technology and the system has significantly increased wind energy penetration.

Sewerage

Exmouth, Coral Bay and Denham are fully deep sewered.

Carnarvon has a combination of deep and vacuum sewers in the majority of the town including the CBD, Brockman, Morgantown and parts of South Carnarvon. East Carnarvon and the bulk of South Carnarvon rely on septic or self contained treatment systems.

Gascoyne Junction has no deep sewerage and all treatment and disposal is by way of septic tanks and leach drains.

Airports

Exmouth has an airport located at Learmonth Air Force base. Learmonth Airport can accommodate some of the largest aircraft flying today. There is also a small light aircraft strip between Learmonth and the town.

Gascoyne Junction has a sealed airstrip suitable for light aircraft, including RFDS.

Denham and Carnarvon have sealed airstrips which are suitable for turbo prop aircraft in the same class as the Fokker F50.

Coral Bay has an airstrip suitable for light aircraft, including RFDS.

There are several hundred private light aircraft strips located at mine sites and pastoral leases throughout the Gascoyne region. Some have the capacity to take RFDS aircraft while most are used for aerial mustering.

Harbours

Harbour infrastructure in the Region varies widely. They range from privately owned and operated salt loading facilities for bulk carriers to basic boat ramps.

Harbour Facilities in the Gascoyne include:

Carnarvon

  • Rio Tinto Salt private Loading facility at Cape Cuvier
  • Small Boat harbour used mainly by fishing industry includes a boatramp used by recreational boaters.

Denham

  • Leslie Salt loading facility at Useless Loop
  • Jetty Monkey Mia

Coral Bay

  • Maritime Facility

Exmouth

  • Marina and Boat Harbour Murat Road
  • Learmonth Jetty-private
  • WAPET Jetty-private

Communications

Telecommunications infrastructure includes phones (landline), mobile phone services, internet access, broadcast radio and television services. Most towns within the region have access to all of the above to some degree.