the ship had not been thorough enough, with the chance that marine life and people could be poisoned.Trembath, HMAS Adelaide to sleep with the fishes An appeal by the protest groups to the Administrative Appeals Tribunal three days before the sinking saw the project placed on hold until the case could be heard in full: supporters and opponents of the dive wreck agreed to participate in mediation in the meantime.Tovey & Harvey, Tribunal scuppers plan to sink ship The case was to be heard on 5 May, but was later postponed to July.West, New tests ordered for warship toxins On 15 September, the Tribunal ruled that scuttling of the ship could go ahead after the removal of any remaining wiring, which may contain polychlorinated biphenyls, canvas, insulation, and exfoliating red lead paint.Australian Associated Press, More money sinks with HMAS Adelaide The delays caused by the tribunal hearing meant that the original $5.8 million assigned to the scuttling project was expended, and the tribunal hearing, additional cleanup, and berthing fees brought the cost of the scuttling project to $8.5 million. A new scuttling date was announced on 24 February 2011 by NSW Lands Minister Tony Kelly, with Adelaide scheduled to be sunk on 13 April 2011, after the additional cleaning ordered by the Administrative Appeals Tribunal was completed in March. Adelaide was towed from Sydney Harbour on the morning of 11 April for the voyage north. The action group attempted to cancel or further delay the sinking of the warship, requesting that the New South Wales Ombudsman investigate the government's handling of the artificial reef project, filing a summons in the Land and Environment Court of New South Wales on the afternoon of 12 April, and asking an Aboriginal 'whale caller' to summon humpback whales to the planned wreck site.McMahon, Dolphins delay scuttling of HMAS Adelaide Despite this, the sinking went ahead just before midday on 13 April, after being delayed by over an hour by a pod of dolphins inside the exclusion zone. After the scuttling charges were fired, Adelaide'' submerged within two minutes. Citations References Books Journal articles News articles Other sources Senate Select Committee Inquiry into A Certain Maritime Incident External links Adelaide-class frigates Ships built in Seattle 1978 ships Ships sunk as dive sites Scuttled vessels of New South Wales Maritime incidents in 2011 Underwater diving sites in Australia