The Resnicks use at least 120 billion gallons a year, two-thirds on nuts, enough to supply San Francisco's 852,000 residents for a decade. They own a majority stake in the Kern Water Bank, one of California's largest underground water storage facilities, which they got fairly but sagely from the government 20 years ago. It is capable of storing 500 billion gallons of water. They have also spent at least $35 million in recent years buying up more water from nearby districts to replenish their supplies.
The Resnicks, who live in a five-bedroom mansion in Beverly Hills and fly into the valley about once or twice a month, are crafty dealmakers and even finer marketers. In addition to the pistachios and almonds, their company, renamed Wonderful in June, owns 32,000 acres of California citrus, flower-delivery service Teleflora, POM Wonderful pomegranate juice and Fiji Water, which collectively brought in $3.8 billion in sales last year. By their own estimates almost half of American households buy their products.
https://www.forbes.com/sites/chloesorvino/2015/11/04/americas-nuttiest-billionaire-couple-amid-drought-stewart-and-lynda-resnick-are-richer-than-ever/#66c1312f3713