Re: NRC provides generic soil criteria (DCGLs) using latest

["James Reese" <james.reese@worldnet.att.net>]

I agree Steve.  The numbers for the NRC are very low, unless these are
intended to be in excess of background.  Also, the EPA's codification of the
5/15pCi/g cleanup level is very limited and not to be used at sites that do
not meet the uranium mill tailing criteria; at least that is what I have
been told by EPA.

James H. Reese
Health Physicist
(916) 689-2680 tel.
(916) 689-6270 fax
james.reese@worldnet.att.net
----- Original Message -----
From: Steven Rima <steve.rima@DOEGJPO.COM>
To: Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>
Sent: December 07, 1999 1:07 PM
Subject: Re: NRC provides generic soil criteria (DCGLs) using latest


>      Very interesting reading. Does anyone else find at least some of
these
>      values to be incredibly low? For example, the EPA has codified (40
CFR
>      192, Subpart B) the soil cleanup level for Ra-226 from uranium
>      processing activities to be 5 pCi/g above background for the top 15
cm
>      of soil, and 15 pCi/g for deeper soil. Using the NRC's calculated
>      concentration of 0.7 pCi/g that would result in 25 mrem/y, the EPA's
>      standardized cleanup level of 5 pCi/g would equal 179 mrem/y!!! Seems
>      to be more than just a little disagreement here.
>
>      Wouldn't it be nice if the various regulatory agencies that are
>      attempting to regulate D&D activities could agree? I guess I'll wish
>      I'd win the lottery while I'm at it. Hmmm, I wonder which one will
>      happen first.
>
>      My opinion only
>
>      Steven D. Rima, CHP, CSP
>      Manager, Health Physics and Industrial Hygiene
>      MACTEC-ERS, LLC
>      steven.rima@doegjpo.com
>
>
> ______________________________ Reply Separator
_________________________________
> Subject: NRC provides generic soil criteria (DCGLs) using latest vers
> Author:  "Abelquist; Eric" <AbelquiE@orau.gov> at Internet
> Date:    12/7/99 1:21 PM
>
>
> Dear Radsafers-
>
> Please note the attached Federal Register notice from the NRC related to
> soil concentrations that correspond to the 25 mrem/y release criterion.
The
> NRC has used an updated version of DandD (somewhat less conservative
default
> parameter values).  Some of the more common radionulcide DCGLs (in pCi/g)
> are as follows:
>
> Co-60.....................................  3.8 E+00
> Sr-90.....................................  1.7 E+00
> Cs-137....................................  1.1 E+01
> Ra-226....................................  7.0 E-01
> Ra-226+C \4\..............................  6.0 E-01
> Th-232....................................  1.1 E+00
> Th-232+C..................................  1.1 E+00
> U-234.....................................  1.3 E+01
> U-235.....................................  8.0 E+00
> U-235+C...................................  2.9 E-01
> U-238.....................................  1.4 E+01
> U-238+C...................................  5.0 E-01
>
> Check it out.
>
> Regards,
> Eric Abelquist
>
>
> Eric W. Abelquist
> ORISE
> P.O. Box 117
> Oak Ridge,TN 37831
> Tel (423) 576-3740
> FAX (423) 241-3497
> Email: abelquie@orau.gov
>
> [Federal Register: December 7, 1999 (Volume 64, Number 234)]
> [Notices]
> [Page 68395-68396]
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