The directions posted below are fine: one right turn off I-15 onto 5th South in Bountiful, and then a left turn on 4th East into the parking lot. Here's the important part: from Salt Lake, it's just 14 minutes (from Pat's house, when it's not rush hour) and 9.58 miles. Pretty easy. And scenic: not only do you get to see the refinery, but then a nice view of Antelope Island.
Let me know if you're thinking of visiting, 801-824-9160, so I can let you know what the traffic's like. He's there for what we expect will be a month of ventilator weaning, more or less.