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1.1. Overview of the Newcastle Gas Storage FacilityThe Newcastle Gas Storage Facility (NGSF) is a project that will take gas from thenetwork during low usage times, liquefy the gas and store it in a large tank, andthen put gas back into the network during periods of high demand. This type offacility is often termed a peaker, i.e. smooth the peaks in demand. The facility will be located in Tomago, north of the Tomago Aluminium Company(TAC) and 1.5 km east of the Pacific Highway. The concept layout is shown onFigure 1.The project consists of various parts: Access to site Site preparation Gas liquefaction plant Gas pipelines Connection of services

The SiteThe site is a rectangular block of around 42 hectares, which is bounded on thenorth and east by fire trails and AusGrid electrical power easements. Thewestern end of the block will be used for the NGSF.An area of approx. 21 hectares will be cleared and levelled to house thepermanent facilities and the construction areas.The main storage tank will be sited at the geographical centre of the block.The finished level of the site will be set to balance the movement of soil withinthe cleared areas. The intention is that no fill will be imported or exported fromthe site.

The site is located above an aquifer that supplies drinking water to Newcastle andhence every effort will be made to ensure that the aquifer is not contaminated.All surface runoff will be sloped to the south-west corner of the site away fromaquifer and collected surface water will then be pumped down to the Old PuntRoad (OPR) for disposal.The finished level for the site will be at an average of around 6.3 m above chartdatum.The water table is at about 4.0 m above chart datum.The site will house the gas processing facilities (liquefaction, storage andgasification), utilities, control room, administration building, workshops and firefighting facilities.

1.3. Site AccessTwo means of access will be provided to the site.The main access will be from TAC Northern Access Road, which is off the northend of Old Punt Road. A permanent built up road will be provided. The accessroute is within a 30 m wide easement through TAC land. The route runs throughsome low lying areas that are prone to flooding in heavy rain. The road will bebuilt up through this area and appropriate culverts installed to maintain currentwater drainage pathways.

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The route will have 3-wire fencing along the boundary. A security gate will beprovided near the entrance to the access road. A motorized sliding gate will beprovided which can be opened using security card or from the control room communications and CCTV at the gate.There is an existing AusGrid easement for the overhead power cables (northsouth).

There will be no high level metallic fencing/facilities within this