yeah, I'd be concerned about 10oz/day avg. alcohol consumption.
She's certainly "at risk"... hopefully this is just a momentary point of "self medicating" for her... hopefully she will seek help for what is certainly depression that is showing up with the alcohol consumption...
You can mention it to her or others if you are concerned... but I think you know... there's nothing you can do about it...
Wishing you and your kids the best through this...
