Both properties have leaked so much product into the ground that they are actually producing 800-1000 bbls/day from recovery wells, and have multiple barrier water injection wells surrounding the perimeter of the sites to prevent groundwater contamination.
Funny how the town of El Segundo was originally constructed to house the refinery workers.
In 1911, when the refinery was built, it was 25 miles south of LA, and way out of town (that's why they placed it there).
Today, the average refinery worker could not even afford a home in El Segundo.
Yes, the property value of the 2.5 square mile refinery is an estimated 5-10 billion USD, but it would cost upwards of 20+ billion to reclaim the site.
So, trust me, Chevron is not moving headquarters anytime soon.