Industry illegally injected about 3 billion gallons of fracking wastewater into central California drinking-water and farm-irrigation aquifers, the state found after the US Environmental Protection Agency ordered a review of possible contamination.
According to documents obtained by the Center for Biological Diversity, the California State Water Resources Board found that at least nine of the 11 hydraulic fracturing, or fracking, wastewater injection sites that were shut down in July upon suspicion of contamination were in fact riddled with toxic fluids used to unleash energy reserves deep underground. The aquifers, protected by state law and the federal Safe Water Drinking Act, supply quality water in a state currently suffering unprecedented drought.
The documents also show that the Central Valley Water Board found high levels of toxic chemicals – including arsenic, thallium, and nitrates – in water-supply wells near the wastewater-disposal sites.
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