More on Soil Standards

[lfiske@shepmill.com (Larry Fiske)]

RadSafers:

One more thing:  the actual soil concentration for Ra-226 in soil for the 15
mrem/y residential scenario according to NUREG-1500 is 0.787 pCi/g not 1
pCi/g.  The reason I bring this up is not for purposes of trivial detail
(after all what's 0.213 pCi/g?).

The reason I bring this up is that given my previous example, the background
sample at 1.8 pCi/g is not even in compliance any longer.  This means that
assuming the background sample represent the true variability in background,
1/20 of all uncontaminated areas will require cleanup! Ouch.

Lawrence Fiske
lfiske@shepmill.com
(970)206-4232

These are my opinions not necessarily those of my employer, YaDa, YaDa, YaDa.