Sen. Lois Wolk, D-Davis, questions state regulators for failing to protect California's water aquifers from oil and gas drilling during an oversight hearing at the Capitol on March 10, 2015.
Sen. Lois Wolk, D-Davis, questions state regulators for failing to protect California's water aquifers from oil and gas drilling during an oversight hearing at the Capitol on March 10, 2015. Rich Pedroncelli The Associated Press
Sen. Lois Wolk, D-Davis, questions state regulators for failing to protect California's water aquifers from oil and gas drilling during an oversight hearing at the Capitol on March 10, 2015. Rich Pedroncelli The Associated Press