Sorry if this duplicates a previous post. I thought I responded to this last night. There is no exact gage for the "future " October Hole. You will need to add the Black Bear Hole gage on the flow page to the St Vrain Feeder Canal gage, which is this one http://www.dwr.state.co.us/Hydrology...&MTYPE=DISCHRG
You will also need to subtract out an unknown amount that is being diverted to Boulder Reservoir, which can be anything from 0-50% of the St Vrain Feeder Canal gage. You will at least know if the water is running or not.
As for normal flows. I think we should see a total flow of around 300-400 cfs through Sept. Once you get into October then it is more of a function of calls. One day it will be running and the next nothing, but normaly the total flow should be around 200-300 cfs. We are trying to copy the design of the Black Bear Hole a much as we can, which normally should be decent down to about 230 cfs.