I am one of the few Farmington whitewater kayakers, and I agree with the other posts that the San Juan Collage Outdoor Program is worth checking, there are several whitewater kayakers working there and they also have a good supply of rental boats and equipment, rafts, canoes, inflatable kayaks, touring kayaks, and whitewater kayaks, etc.
In a "normal" year I'm out kayaking a couple of times a week and both days of the weekend, mostly Colorado rivers, a little less this year though.
I may go over to the whitewater park in Farmington this week after 5 pm if you are interested.