Very upsetting, but not new news. I am surprised at Whole Foods, though. I’ve been buying Trader Joe’s California Estate Extra Virgin for several years primarily because of the taste, but also I trust California olive oil after reading earlier reports about this problem. I’ve found other good ones at local farmer’s markets, but none that are as good a value as the Trader Joe’s brand.
Here’s another link that lists approved olive oils that are given a seal on their label by the California Olive Oil Council.
http://www.oliveoiltimes.com/olive-oil-basics/world/cooc-seal/24756