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Chevron - AERA

Chevron east-west aboveground flowlines
East-West Aboveground Flowlines

What's New

  • A Technical Work Plan and site assessment have been prepared for the Chevron - AERA flowline remediation project.
  • The workplan and site assessment were deemed necessary following the discovery of two areas of soil contamination. One area exists near the bank of Alcatraz Creek and the other area exists on the beach.
  • The workplan and site assessment will be used to characterize the lateral and vertical extent of contamination at these two locations.
  • Chevron-Aera has requested to delay remediation and revegetation efforts until the abandonment of the Gaviota Terminal facility takes place.


This site once housed flowlines serviced gas wells in the Molino field. The flowlines were removed in 2000 and site cleanup and restoration is ongoing.


The Chevron - AERA Flow Lines are located approximately 28 miles west of Santa Barbara at Gaviota.

Gas and Facilities Map
Chevron Location
Chevron Aera Flowline Corridors
Chevron - AERA Flowline Corridors

Onshore Facilities

The Chevron - AERA flow line segments are divided into five distinct areas, including:

  • North-South Flow Line Corridor
    • Located partially within ARCO's onshore processing facility
    • Extends south through culverts under U.S. 101 and the facility's internal access road and south along Alcatraz Creek
  • East-West Flow Line Corridor
    • Located on the coastal bluff south of, and parallel to, the Union Pacific railroad tracks
  • East-Slope Flow Line Corridor
    • Extends from the western end of the East-West Flow Line Corridor in a westerly direction down a slope to Alcatraz Creek
  • Forebay Flow Line Corridor
    • Connects the East-Slope Flow Line Corridor to the Near Shore Flow Line Corridor Area at the ocean
  • Near Shore Flow Line Corridor
    • Connects the forebay area at the beach to platforms offshore

Past Activities

  • Since 1896, the current site of the Gaviota Terminal was used as crude oil storage and processing facility.
  • In 1904, the site was used for an oil refinery to handle crude oil from the newly discovered Santa Maria fields.
  • In 1950, the Gaviota Marine Terminal was constructed.
  • Between the 1960-70s, the site was used as a petroleum area and transportation route for offshore oil and gas wells in combination with the Marine Terminal.
  • The Chevron - AERA flow lines were constructed in 1963 within the Gaviota Pipeline Terminal. The flow lines were utilized to transport gas and service subsea wells offshore of the Gaviota Pipeline Terminal site (State oil and gas leases PRC 2199 and 2894).
  • Chevron - AERA offshore wells were permanently abandoned between June 1997 and 1998 as part of the Subsea Well Abandonment and Rig Sharing Program (SWARS). Removal of the offshore flow lines (from the 15' mean sea level to mean high tide line) was completed during the first quarter of 1999. The flow lines section from the 15' mean sea level out to abandoned well heads were abandoned in place.
  • September 23, 1997- application filed by Chevron - AERA to abandon onshore gas flow lines associated with sub-sea wells.
  • October 13, 1999- Planning Commission approved the removal of 1700 feet of flow line.
  • During the summer of 2000, the Chevron - AERA gas flow lines were removed.

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