state's regulations be revised to prohibit injection well operators from accepting oil and natural gas drilling waste water from out of state. Support Alaska Hydraulic fracturing has been conducted at the North Slope and the Kenai Peninsula on the South coast of Alaska. Due to potential harm to Alaska's fragile environment, there have been hearings on new regulations for this type of oil extraction. California California is the fifth-largest crude oil producer in the US. ABC noted on December 6, 2019, that concerning fracking permits and views of fossil fuel extraction in California, "the state is moving to ramp down oil production while Washington is expediting it. State officials are taking a closer look at the environmental and health threats – especially land, air and water contamination – posed by energy extraction, while Washington appears to have concluded that existing federal regulations sufficiently protect its sensitive landscapes as well as public health." A number of bills have been introduced to limit fracking in the state or particular counties. In 202, State Senator Fran Pavley introduced a bill requiring drillers to notify local property owners and water authorities in advance that hydraulic fracturing was going to occur, and requiring the testing of groundwater before and after the hydraulic fracturing to determine whether contamination had occurred. Pavley said that this monitoring and reporting approach would help to address citizens' concerns. In May 2012, the state Senate defeated the bill in a bipartisan 18–17 vote. Pavley introduced a similar bill in 2013, stating she hoped that it would comprehensively regulate and oversee hydraulic fracturing, as well as create transparency for the public. In September 2013, the California legislature passed Senate Bill 4 to regulate hydraulic fracturing. The bill, signed by Governor Jerry Brown, provided for disclosure of chemical used, pre-testing of nearby water wells, and a study on environmental and safety issues. These regulations, which went into effect on January 1, 2015, require "oil companies to obtain permits for fracking as well as acidizing, the use of hydrofluoric acid and other chemicals to dissolve shale rock". The 2013 bill seemed to be a step in the right direction for environmentalists, but some criticized the bill as being too lax. Kassie Siegel of the Center for Biological Diversity said: “SB 4 was amended in the final hours of the legislative session to take it from to a bill that didn't go far enough to