You are correct John other than I would add the following:
Clause 5.15.1, 5.15.1.2, with Table 5.4 would indicate that if it is a mill induced Discontinuity there are other variables depending upon the length and depth of the Discontinuity. Some as small as 1/8" in depth.
Those variable were why I was curious as to the nature/origin of the "gouge".
Have a Great Day, Brent