...from experience, i was thinking that, as a reference point, 10 micro rem per hour is the average general area dose rate at all the protected area yards in the U.S....
it's been over a decade since i was in a power plant p.a. however, while i was there, as a contractor, i seldom used a ludlum model 19. when i did the peach, i never used a m19! especially in the back yard, where the rwcu tanks (i think that's what they are, been > decade for that plant) were. but, for being in that area, a section of the reading prong after all, 10 micro r wouldn't be a big deal. probably a couple of multiples of that rate wouldn't raise an eyebrow in most p.a.s of bwr plants.