What Ethan Higbee first thought was the sound of rushing water outside his home in Santa Paula, California, turned out to be something far more disturbing. He found that crude oil was flowing downhill toward a nearby creek. Six months later, residents said they are still waiting for basic answers about how much oil spilled, whether contamination remained, and if anyone will actually be held accountable. The spill happened on Nov. 18 near Sisar …