As the drought continues in California, State regulators allow oil companies to inject wastewater into aquifers that hold water reserved for drinking and irrigation.
Sputnik news report: Oil companies in drought-ravaged California are pumping wastewater from their operations into aquifers, potentially contaminating groundwater supplies that have become increasingly important.
State regulators permitted companies to drill hundreds of waste-disposal wells into aquifers that store water for drinking or irrigation, the San Francisco Chronicle reported. Companies injected a blend of briny water, hydrocarbons and trace chemicals.
Most of the wells are located in the state’s Central Valley, where residents are pumping so much groundwater to cope with the historic drought that the land has started to sink.
“It is an unfolding catastrophe, and it’s essential that all oil and gas wastewater injection into underground drinking water stop immediately,” said Kassie Siegel, director of the Climate Law Institute at the Center for Biological Diversity environmental group.
So far, tests of nearby drinking-water wells show no contamination, state officials said. But the federal Environmental Protection Agency is still threatening to take control of monitoring the waste-injection wells after more than 30 years of state management.
“If there are wells having a direct impact on drinking water, we need to shut them down now,” said Jared Blumenfeld, regional administrator for the EPA. “Safe drinking water is only going to become more in demand.”
The problem dates back to 1983, when the EPA gave state regulators responsibility for enforcing the federal Safe Drinking Water Act. The agreement listed aquifers considered exempt, where oil companies could legally inject leftover water.