Re: STATISTICAL FREE RELEASE RAD SURVEYING TECHNIQUES.

[julie.coleman@platinum.brooks.af.mil]

     The NRC, EPA, DOE and DoD have a working group currently finishing a 
     new survey manual.  It is the Multi-Agency Radiation Survey and Site 
     Investigation Manual (MARSSIM).  MARSSIM is a new radiological 
     decommissioning guide due to be submitted to the federal register
     Jul 96.  This manual, which will take the place of NUREG/CR 5849, is a 
     federal guide that will be accepted by both the NRC and the EPA.  One 
     of the main purposes of this guidance is to translate release 
     criteria, which will be dose-based, into something that can be 
     measured (e.g., pCi/g in soil).  Another important aspect of this 
     document is that it presents guidance on how to statistically 
     demonstrate that a site has been adequately remediated.  I would also 
     suggest you read NUREG 1505.
     
     Julie Coleman
     
     julie.coleman@gaurdian.brooks.af.mil


______________________________ Reply Separator _________________________________
Subject: STATISTICAL FREE RELEASE RAD SURVEYING TECHNIQUES.
Author:  radsafe@romulus.ehs.uiuc.edu at INTERNET-HUB
Date:    11/7/95 12:42 PM


 S. Green, R. H. Miller and R. A. Nelson, "Developement and Use of
Statistcal  Survey Criteria for Release of  Materials at a Former Uranium 
Processing Facility," Health Physics Vol. 61, No. 6 (December), pp. 903-911, 
1991. 
     
The above article describes a random sampling technique for the free-release 
of materials at a radiation facility.  It received the blessing of DOE and 
the state of Missouri to apply this technique for the D&D of the Weldon 
Spring Site in the late 1980's.  This was applied to historically low 
contaminated surfaces such as office buildings and other non-rad structures 
at radiation facilities.  Presently 100% surveying of all structure surfaces 
at such facilities is required. 
     
Use of this technique could save millions of manhours and tax-payer's 
dollars in the huge amount of D&D projects coming up in the future.
     
I would like to hear if this technique is being applied elsewhere.  Also, 
what are the opinions of Radsafers about this random sampling survey 
technique?