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California Air Resources Board

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green trees line both banks of the sacramento river. the yellow tower bridge crosses the blue water leading to the tall buildings of the sacrament skyline. the scene is set against a clear blue sky.

CARB Natural (Non-Anthropogenic) Source Methodologies - Geogenic Sources

Area Source Categories

Petroleum Seeps - Oil & Gas (April 1993)

District Methodologies

Petroleum Seeps - Oil & Gas (August 2019)

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(800) 242-4450  |  helpline@arb.ca.gov 
1001 I Street, Sacramento, CA 95814
P.O. Box 2815, Sacramento, CA 95812

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California Governor
Gavin Newsom Opens a New Window.
Secretary for Environmental Protection
Yana Garcia Opens a New Window.
Chair, California Air Resources Board
Liane M. Randolph Opens a New Window.

The California Air Resources Board is one of six boards, departments, and offices under the umbrella of the California Environmental Protection Agency.

  • CalEPA
  • CalRecycle
  • DPR
  • DTSC
  • OEHHA
  • SWRCB

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