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Re: What is a contaminated soil ?



Randy, and all,

This defines "contamination AREA" but not "contamination" except in the
imprecise allusion to "levels exceeding natural background" (and 'not released 
by DOE' which is a little circular since something can stay contaminated
forever on that standard). 

>      According to Title 10, Code of Federal Regulations, 835, "Occupational 
>      Radiation Protection's Implemetation Guide on Posting and Labeling, 
>      November 1994, soil contamination area is defined:
>      
>      "Any area where radioactive material contamination exists in a matrix 
>      (eg. soil) at levels exceeding natural background and has not been 
>      release for unrestricted use in accordance with DOE Order 5400.5, 
>      Radiation Protection of the Public and the environment."
>      
>      Randy Brich
>      USDOE
>      Richland
>      e-mail: randall_f_brich@rl.gov
> 
> 
> ______________________________ Reply Separator _________________________________
> Subject: What is a contaminated soil ?
> Author:  Jean-Michel Mure <Jean-Michel.Mure@andra.fr> at -MailLink
> Date:    1/14/97 10:46 AM
> 
> 
> Hi Radsafers,
>      
> I would like to know if there the american legislation (or elsewhere) 
> defines in an explicit manner (in tems of activity per unit mass for 
> example), what is a contaminated soil ? If not, what is the decision 
> criteria which is used by safety authorities to decide whether a soil is to 
> be decontaminated? 
>      
> Can you provide references for useful documents.
>      
> Thanks and best regards.
> JM        
> *************************************************** 
> Jean-Michel MURE