Basic Assessment Report - Transnet

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Transnet LimitedProposed RO Plant: Port of SaldanhaFinal Basic Assessment ReportThe current and wave action at Site 3 (located on the quay between Small Bay andBig Bay) is also impacted on by ship movement.8.5 GeohydrologyThe geology of the area is dominated by three different geological units, namely theMalmesbury Group, the Cape Granite Suite and the unconsolidated Cenozoic coastaldeposits. The Cenozoic coastal deposits are recognised as a major aquifer system inexcess of 10m thick. Two aquifers occur in the vicinity of the site, namely a naturalaquifer in the rock formations on land and a man-made aquifer in the fill material ofthe reclaimed land from previous port expansions. Groundwater in these aquifers is ofa very poor quality and is unfit for domestic, irrigation, certain agricultural and mostindustrial uses. Borehole yields in the area are generally low. Groundwater at Site 1and Site 2 consists of a mixture of groundwater and sea water, and the salinity of thegroundwater is likely to vary according to the tides (i.e. more saline at high tide thanat low tide due to water ingress). Site 3 is on reclaimed land underlain by fill materialsaturated with seawater below the water level.8.6 Socio-Economic EnvironmentThe Port of Saldanha falls within Saldanha Bay Local Municipality, in the WestCoast District Municipality. The local municipality encompasses the towns ofSaldanha, Langebaan and Vredenburg.The Saldanha Bay Local Municipality covers an area of 1 767km² and has apopulation of 88 000. More than 75% of the municipality’s population live inVredenburg, Saldanha or Langebaan. Unemployment is a big problem in the area,especially for people who do not have suitable qualifications. According to the Socio-Economic Impact Assessment conducted in 2000 (Van Zyl & Malan, 2000) the socialenvironment affected by Transnet Port Terminals (TPT) and Transnet National PortsAuthority (TNPA) has experienced radical changes since the establishment of MittalSteel.Until the construction of the R27 provincial road in the 1970’s, Saldanha Bay was arelatively isolated area only accessible by road via a long drive from Cape Town viathe towns of Malmesbury and Darling. The construction of the road and theestablishment of the deep water harbour has seen massive development take place.Despite the growth in the area there is still areas that retain the sense of wildernessthat until recently characterised the area.Water is a scarce resource in the region, and municipal water allocations are limitedand controlled. Thus, water supply is under pressure for all users in Saldanha Bay,especially users of water for industrial processes.The sheltered harbour of Saldanha Bay hosts many industries, including maricultureand tourism in addition to the Saldanha iron ore project. Mariculture in Saldanha Bay45Prepared by the PDNA/SRK Joint Venture
Transnet LimitedProposed RO Plant: Port of SaldanhaFinal Basic Assessment Reportmainly occurs in Small Bay, and thus brine discharge into Small Bay may impact onthese industries more than discharge into Big Bay.Mariculture in Saldanha Bay mainly occurs in Small Bay, and thus brine dischargeinto Small Bay may impact on these industries more than discharge into Big Bay.46Prepared by the PDNA/SRK Joint Venture
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Basic Assessment Report - Transnet

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