I made a quick drive down to the south side of McFarland. LTE is active!
From the edge of the cell area I ran a speed test, ~10mb up, ~4mb down. I didn't have much time so I didn't drive deeper into the cell to do further speed tests... a project for another time.
I was running Sensorly so check out the glorious purple (you might need to zoom in a ways... fresh traces seem to take a while to bubble up to the zoomed out views.