SACRAMENTO, Calif. (AP) — Oil and gas drillers that use a technique known as fracking would face new rules in California under legislation headed to the governor's desk.
The measure includes a requirement that drillers disclose the chemicals they use in the process of hydraulic fracturing. The process involves injecting water, sand and chemicals into deep rock formations to release oil or natural gas.
The Senate approved SB4 by Democratic Sen. Fran Pavley of Agoura Hills on a 28-8 vote Wednesday. They acted hours after the Assembly voted 47-14 to approve the bill.
Gov. Jerry Brown is expected to sign it.
Environmentalists across the nation have been questioning whether the chemicals used in fracking could harm public health or air and water quality.
Conservation groups expressed concern over last-minute changes in the California bill affecting environmental reviews.