Gold & Heritage Museum was established,(now called the Beaconsfield Mine & Heritage Centre url www.beaconsfieldheritage.com.au) with displays relating to the former gold mining era operating since 1984. During the 1970s exploration drilling confirmed that the reef continued at least another 200 metres below the old workings. By 1991 the old Hart Shaft collar had been re-established and water pumped out to 160 metres deep. The project was suspended until 1992 when the mine's owners changed. Deep drilling resumed in 1993 to review the resource estimates and, from 1994, the Beaconsfield Mine Joint Venture has carried out drilling of the depth extension of the Tasmania Reef. A permanent stage pumping station 181 m below ground had been lowering the water in the shaft since August 1995. The permanent winder and head frame were completed in January 1996 and the shaft finished in late 1996. An ore treatment plant was built during the 1999/2000 financial year. In the financial year 2004/05, 240 685 tonnes of ore was produced from which 3890 kilograms of gold was extracted. In 2006 the participants in the unincorporated Beaconsfield Mine Joint Venture (BMJV), which operated the Beaconsfield Mine, were the Allstate group (Asx:ALX - delisted) with a 51.51% interest and the Beaconsfield Gold group (Asx:BCD - delisted) with a 48.49% interest. Allstate managed the BMJV, with the mine manager, and all personnel reporting to him, employed by Allstate. 2006 mine collapse On Tuesday 25 April 2006, a small earthquake caused a rock fall in the Beaconsfield gold mine. Fourteen miners escaped safely, one miner, Larry Knight, was killed, and the remaining two, Todd Russell and Brant Webb, were trapped in a shaft approximately one kilometre underground. The two trapped miners were found alive five days later on Sunday 30 April. Rescue operations continued for nearly two weeks until the two miners were freed on Tuesday 9 May. In September 2007, the Foo Fighters released a tribute ("Ballad of the Beaconsfield Miners") to the miners on their album Echoes, Silence, Patience & Grace. The Beaconsfield gold mining operations finally ended with the closure of the mine in June 2012. Water fluoridation On 30 September 1953 Beaconsfield was the first town in Australia to add fluoride to its water supply. The municipal chemist at the time, Frank Grey, produced a report for the town council detailing evidence from studies in the USA that supported water fluoridation to improve dental