FOR every "fracked" coal-seam gas well, between 10,000 and 35,000 litres of chemicals are injected into the ground, with up to 40 per cent remaining there.
The CSG industry has talked down the quantity of chemicals used in the process, repeatedly stating the chemicals represent roughly 1 per cent of fracking solution with the remainder comprised of water and "proppant" such as sand.
The Senate committee into CSG, which delivered an interim report this week, has examined the bulk of chemicals used in the hydraulic fracturing or "fracking" process. It states that because of the very large volumes of solution involved, "even 1 per cent is still a significant volume".
Fracking is thought to be used at up to 40 per cent of the 18,650 CSG wells approved for development in Queensland.
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The Australian
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