This isn't first-hand, but I spoke to a buddy who was in there last week and there was water in the creek and at the spring. The Tonto NF classifies Reavis Creek as perennial altho it's about as low as it can get right now. The Mesa office of the Tonto NF used to send a ranger to Reavis at least twice a month for a resource 'recon' so they might have the definitive word. No apples this year but the leaves are turning. Should be a very nice trip. I'm envious. :roll:
I was there Sept. 29, there was water flowing in the creek down by the ranch. Also, in the stream bed to Angel basin I found some pools, well off the trail but there was water if you really needed it, pretty skanky.
I think you will be in pretty good shape for water. Recent rains have filled pools and recharged water supplies at areas far less reliable than Reavis Ranch (at least according to friends of mine that have been out there recently).