Re: Radioactivity in soil

[larsongr@ornl.gov (Greg Larson)]

I obtained a copy of the RESRAD code in 1992 from the following source (this
should still be valid):

Charley Yu
Environmental Assessment and Information Sciences Div.
Argonne National Laboratory
(708) 252-5589

Also I had info for a couple of other possible sources if the one above from
Argonne does not work.  The information I have states that these sources are
for non-DOE contractors:

Energy, Science, and Technology Software Center
PO Box 1020
Oak Ridge, TN  37831-1020

Radiation Shielding Information Center
PO Box 2008
Oak Ridge, TN  37831-6362

Sorry, I do not have telephone numbers for the above.

As an aside, I know the NRC had published a NuReg/CR-5512 (I believe) that
had various residential soil usage models.  It was in draft form when I saw
it several years ago and I do not know if it has come out in final form.
This NuReg listed pCi/gm numbers on a radionuclide basis that corresponded
to a 1 mrem/yr dose committment.

Hope this has been some help.

Gregory R. Larson
Radioactive Solid Waste Operations Group
Lockheed Martin Energy Research
Oak Ridge National Laboratory
P.O. Box 2008
Building 3047, MS 6023
Oak Ridge, TN  37831-6023
e-mail:  larsongr@ornl.gov

  
>A few weeks (months?) ago, this was part of a post:
>
>"The 15 mrem/yr is based on an environmental pathway analysis (e.g., the
>RESRAD family of codes) using the results of soil samples, contamination
>surveys, etc.  For example, the cleanup standard (using 15 mrem/yr) for
>Ra-226 in soil using a residential land-usescenario could be as low (or
>lower) as 1 pCi/g, most likely
>not detectable using normal field survey techniques.  Note that this is 1/5
>of the current DOE standard."
>
>Generally:  How might one go about getting a copy of RESRAD?
>
>Specifically:  Does anyone know offhand what the pCi/g limit (corresponding
>to 15 mr/yr) might be for Am-241 and/or Cs-137?
>
>Thanks for any assistance.  You may e-mail me personally at BLHamrick@aol.com
>
>Thanks,
>Barbara L. Hamrick
>Los Angeles County Radiation Management
>BLHamrick@aol.com
>213-738-4148
>
>