Drought isn’t the only danger to our water supply, as we have discovered in the last few weeks. Deep under the ground, our life-saving aquifers have been filling up from the rain. But on the Oxnard Plain, oil drilling threatens what we’re working so hard to protect. A recent U.S. Geological Survey report found petroleum-related gases in two groundwater wells sited directly over cyclic steam oil recovery operations, and possibly a third.