The California Department of Conservation, Division of Oil, Gas, & Geothermal Resources is violating state law by not requiring an Environmental Impact Report for natural gas and oil fracking. The Center for Biological Diversity, Earthworks, Environmental Working Group, and Sierra Club filed suit in Alameda Superior Court Oct. 16 to prohibit new fracking well approvals until the agency \u201ccomplies with its legal requirements to evaluate and mitigate the significant environmental and public health impacts caused by hydraulic fracturing,\u201d notes the complaint. In the state, 628 wells were fracked last year, according to the Western States Petroleum Association. The process injects water, chemicals, and grit to push fossil fuels out of porous geologic formations. California has 1,567 gas wells in production as of 2010, producing 255 billion cubic feet, noted the lawsuit. Since 2011, the state has approved \u201cat least\u201d 38 wells without California Environmental Quality Act evaluation, giving them either a \u201cnegative declaration,\u201d or other exemptions, noted environmentalists. The federal Environmental Protection Agency raised concern over the state\u2019s approvals. Last year, EPA sent a letter to the agency noting it was not performing \u201czone of endangering influence\u201d checks and questioned whether underground water sources would be contaminated. \u201cIt\u2019s unacceptable that state regulators have done almost nothing to govern, or even investigate, the risks associated with fracking,\u201d Bill Allayaud, Environmental Working Group director of governmental affairs, stated. The department declined a request for response.